Singly-Even Self-Dual Codes and Hadamard Matrices. - Masaaki Harada; Vladimir D. Tonchev (AAECC, 1995)

New Extremal Doubly-Even [64, 32, 12] Codes. - Masaaki Harada; Hiroshi Kimura (Des. Codes Cryptogr., 1995)

Forward propagation universal learning network. - Kotaro Hirasawa; Masanao Ohbayashi; Masaru Koga; Masaaki Harada (ICNN, 1996)

Robust learning control using universal learning network. - Masanao Ohbayashi; Kotaro Hirasawa; Junichi Murata; Masaaki Harada (ICNN, 1996)

Existence of New Extremal Doubly-Even Codes and Extremal Singly-Even Codes. - Masaaki Harada (Des. Codes Cryptogr., 1996)

Weight enumerators of extremal singly-even [60, 30, 12] codes. - T. Aaron Gulliver; Masaaki Harada (IEEE Trans. Inf. Theory, 1996)

Certain Self-Dual Codes over Z4 and the Odd Leech Lattice. - T. Aaron Gulliver; Masaaki Harada (AAECC, 1997)

Weighing Matrics and Self-Dual Codes. - Masaaki Harada (Ars Comb., 1997)

Classification of Extremal Double Circulant Formally Self-Dual Even Codes. - T. Aaron Gulliver; Masaaki Harada (Des. Codes Cryptogr., 1997)

Weight Enumerators of Double Circulant Codes and New Extremal Self-Dual Codes. - T. Aaron Gulliver; Masaaki Harada (Des. Codes Cryptogr., 1997)

Extremal binary self-dual codes. - Steven T. Dougherty; T. Aaron Gulliver; Masaaki Harada (IEEE Trans. Inf. Theory, 1997)

New extremal ternary self-dual codes. - Masaaki Harada (Australas. J Comb., 1998)

Classification of Extremal Double Circulant Self-Dual Codes of Lengths 64 to 72. - T. Aaron Gulliver; Masaaki Harada (Des. Codes Cryptogr., 1998)

New Extremal Type II Codes over Z4. - Masaaki Harada (Des. Codes Cryptogr., 1998)

Classification of extremal double-circulant self-dual codes of length up to 62. - Masaaki Harada; T. Aaron Gulliver; Hitoshi Kaneta (Discret. Math., 1998)

Double Circulant Self-Dual Codes Over Z2k. - T. Aaron Gulliver; Masaaki Harada (IEEE Trans. Inf. Theory, 1998)

Binary Optimal Linear Rate 1/2 Codes. - Koichi Betsumiya; T. Aaron Gulliver; Masaaki Harada (AAECC, 1999)

Construction of Extremal Type II Codes over Z. - Philippe Gaborit; Masaaki Harada (Des. Codes Cryptogr., 1999)

Niemeier lattices and Type II codes over Z4. - Alexis Bonnecaze; Philippe Gaborit; Masaaki Harada; Masaaki Kitazume; Patrick Solé (Discret. Math., 1999)

Optimal ternary formally self-dual codes. - Steven T. Dougherty; T. Aaron Gulliver; Masaaki Harada (Discret. Math., 1999)

Extremal double circulant Type II codes over Z4 and construction of 5-(24, 10, 36) designs. - T. Aaron Gulliver; Masaaki Harada (Discret. Math., 1999)

New Optimal Self-Dual Codes over GF(7). - T. Aaron Gulliver; Masaaki Harada (Graphs Comb., 1999)

An Optimal Unimodular Lattice in Dimension 39. - T. Aaron Gulliver; Masaaki Harada (J. Comb. Theory A, 1999)

On the covering radius of Z4-codes and their lattices. - Toru Aoki; Philippe Gaborit; Masaaki Harada; Michio Ozeki; Patrick Solé (IEEE Trans. Inf. Theory, 1999)

Type II Codes, Even Unimodular Lattices, and Invariant Rings. - Eiichi Bannai; Steven T. Dougherty; Masaaki Harada; Manabu Oura (IEEE Trans. Inf. Theory, 1999)

Type IV self-dual codes over rings. - Steven T. Dougherty; Philippe Gaborit; Masaaki Harada; Akihiro Munemasa; Patrick Solé (IEEE Trans. Inf. Theory, 1999)

Type II Codes Over F2 + u F2. - Steven T. Dougherty; Philippe Gaborit; Masaaki Harada; Patrick Solé (IEEE Trans. Inf. Theory, 1999)

New extremal self-dual codes of length 68. - Steven T. Dougherty; Masaaki Harada (IEEE Trans. Inf. Theory, 1999)

Codes of Lengths 120 and 136 Meeting the Grey-Rankin Bound and Quasi-Symmetric Designs. - T. Aaron Gulliver; Masaaki Harada (IEEE Trans. Inf. Theory, 1999)

Construction of optimal Type IV self-dual codes over F2+µF2. - T. Aaron Gulliver; Masaaki Harada (IEEE Trans. Inf. Theory, 1999)

Construction of an Extremal Self-Dual Code of Length 62. - Masaaki Harada (IEEE Trans. Inf. Theory, 1999)

New extremal self-dual codes of lengths 36 and 38. - Masaaki Harada (IEEE Trans. Inf. Theory, 1999)

OFDM systems with multiple trellis coded modulation. - Masaaki Harada; Takaya Yamazato; Masaaki Katayama; Akira Ogawa (PIMRC, 2000)

Optimal Formally Self-Dual Codes over F5 and F7. - Steven T. Dougherty; T. Aaron Gulliver; Masaaki Harada (Appl. Algebra Eng. Commun. Comput., 2000)

Double Circulant Self-Dual Codes over GF(5). - T. Aaron Gulliver; Masaaki Harada (Ars Comb., 2000)

Shadow lattices and shadow codes. - Steven T. Dougherty; Masaaki Harada; Patrick Solé (Discret. Math., 2000)

On the existence of extremal Type II codes over Z6. - Masaaki Harada (Discret. Math., 2000)

Extremal self-dual codes with the smallest covering radius. - Masaaki Harada; Michio Ozeki (Discret. Math., 2000)

Z4-Code Constructions for the Niemeier Lattices and their Embeddings in the Leech Lattice. - Masaaki Harada; Masaaki Kitazume (Eur. J. Comb., 2000)

Type II Codes over F2r. - Koichi Betsumiya; Masaaki Harada; Akihiro Munemasa (AAECC, 2001)

Optimal Double Circulant Z4-Codes. - T. Aaron Gulliver; Masaaki Harada (AAECC, 2001)

Note on the g-fold Joint Weight Enumerators of Self-Dual Codes over Zk. - Steven T. Dougherty; Masaaki Harada; Manabu Oura (Appl. Algebra Eng. Commun. Comput., 2001)

Binary Optimal Odd Formally Self-Dual Codes. - Koichi Betsumiya; Masaaki Harada (Des. Codes Cryptogr., 2001)

Classification of Formally Self-Dual Even Codes of Lengths up to 16. - Koichi Betsumiya; Masaaki Harada (Des. Codes Cryptogr., 2001)

Codes over and Improvements to the Bounds on Ternary Linear Codes. - T. Aaron Gulliver; Masaaki Harada (Des. Codes Cryptogr., 2001)

An extremal ternary self-dual [28, 14, 9] code with a trivial automorphism group. - Masaaki Harada (Discret. Math., 2001)

Orthogonal Frames in the Leech Lattice and a Type II Code over Integer 22. - T. Aaron Gulliver; Masaaki Harada (J. Comb. Theory A, 2001)

On type II codes over F4. - Koichi Betsumiya; T. Aaron Gulliver; Masaaki Harada; Akihiro Munemasa (IEEE Trans. Inf. Theory, 2001)

Orthogonal Designs and Type II Codes over Z2k. - Stelios Georgiou; Masaaki Harada; Christos Koukouvinos (Des. Codes Cryptogr., 2002)

On Type IV self-dual codes over Z4. - Stefka Bouyuklieva; Masaaki Harada (Discret. Math., 2002)

Self-dual Z4-codes and Hadamard matrices. - Masaaki Harada (Discret. Math., 2002)

Self-dual and maximal self-orthogonal codes over F7. - Masaaki Harada; Patric R. J. Östergård (Discret. Math., 2002)

Z6-Code Constructions of the Leech Lattice and the Niemeier Lattices. - Masaaki Harada; Masaaki Kitazume (Eur. J. Comb., 2002)

Classification of Extremal Formally Self-Dual Even Codes of Length 22. - Masaaki Harada; Patric R. J. Östergård (Graphs Comb., 2002)

New extremal self-dual codes of length 62 and related extremal self-dual codes. - Radinka Dontcheva; Masaaki Harada (IEEE Trans. Inf. Theory, 2002)

Formally Self-Dual Codes Related to Type II Codes. - Koichi Betsumiya; Masaaki Harada (Appl. Algebra Eng. Commun. Comput., 2003)

Some Extremal Self-Dual Codes with an Automorphism of Order 7. - Radinka Dontcheva; Masaaki Harada (Appl. Algebra Eng. Commun. Comput., 2003)

Extremal Self-Dual Codes over F2 × F2. - Koichi Betsumiya; T. Aaron Gulliver; Masaaki Harada (Des. Codes Cryptogr., 2003)

Extremal Self-Dual [50, 25, 10] Codes with Automorphisms of Order 3 and Quasi-Symmetric 2-(49, 9, 6) Designs. - Stefka Bouyuklieva; Masaaki Harada (Des. Codes Cryptogr., 2003)

On self-dual codes over some prime fields. - Koichi Betsumiya; Stelios Georgiou; T. Aaron Gulliver; Masaaki Harada; Christos Koukouvinos (Discret. Math., 2003)

Construction of new extremal self-dual codes. - T. Aaron Gulliver; Masaaki Harada; Jon-Lark Kim (Discret. Math., 2003)

Self-orthogonal Codes from Symmetric Designs with Fixed-point-free Auto-morphisms. - Masaaki Harada; Vladimir D. Tonchev (Discret. Math., 2003)

On the Classification of Self-Dual Codes over F5. - Masaaki Harada; Patric R. J. Östergård (Graphs Comb., 2003)

Performance Improvement for Coded OFDM Systems with Adaptive Interleaving in Frequency Selective Fading Channel. - Masaaki Harada; Takaya Yamazato; Hiraku Okada; Masaaki Katayama; Akira Ogawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

On the Minimum Weight of Codes over F5 Constructed from Certain Conference Matrices. - T. Aaron Gulliver; Masaaki Harada (Des. Codes Cryptogr., 2004)

On the Covering Radius of Ternary Extremal Self-Dual Codes. - Masaaki Harada; Michio Ozeki; Kenichiro Tanabe (Des. Codes Cryptogr., 2004)

MDS codes over F9 related to the ternary Golay code. - Makoto Araya; Masaaki Harada (Discret. Math., 2004)

Erratum to "Construction of new extremal self-dual codes" [Discrete Mathematics 263 (2003) 81-91]. - T. Aaron Gulliver; Masaaki Harada; Jon-Lark Kim (Discret. Math., 2004)

Extremal self-dual [40, 20, 8] codes with covering radius 7. - Masaaki Harada; Akihiro Munemasa; Kenichiro Tanabe (Finite Fields Their Appl., 2004)

On a 5-design related to an extremal doubly even self-dual code of length 72. - Masaaki Harada; Masaaki Kitazume; Akihiro Munemasa (J. Comb. Theory A, 2004)

Optimal self-dual codes over F2*F2 with respect to the Hamming weight. - Koichi Betsumiya; Masaaki Harada (IEEE Trans. Inf. Theory, 2004)

Near-Extremal Formally Self-Dual Even Codes of Lengths 24 and 32. - T. Aaron Gulliver; Masaaki Harada; Takuji Nishimura; Patric R. J. Östergård (Des. Codes Cryptogr., 2005)

Remark on a 5-Design Related to a Putative Extremal Doubly-Even Self-Dual [96, 48, 20] Code. - Masaaki Harada (Des. Codes Cryptogr., 2005)

Symmetric (4,4)-Nets and Generalized Hadamard Matrices Over Groups of Order 4. - Masaaki Harada; Clement W. H. Lam; Vladimir D. Tonchev (Des. Codes Cryptogr., 2005)

On some self-dual codes and unimodular lattices in dimension 48. - Masaaki Harada; Masaaki Kitazume; Akihiro Munemasa; Boris Venkov (Eur. J. Comb., 2005)

Orthogonal designs and MDS self-dual codes. - Masaaki Harada; Hadi Kharaghani (Australas. J Comb., 2006)

Self-Orthogonal 3-(56, 12, 65) Designs and Extremal Doubly-Even Self-Dual Codes of Length 56. - Masaaki Harada (Des. Codes Cryptogr., 2006)

Classification of extremal double circulant self-dual codes of lengths 74-88. - T. Aaron Gulliver; Masaaki Harada (Discret. Math., 2006)

Some restrictions on weight enumerators of singly even self-dual codes. - Masaaki Harada; Akihiro Munemasa (IEEE Trans. Inf. Theory, 2006)

Optimal double circulant self-dual codes over 𝔽4 II. - T. Aaron Gulliver; Masaaki Harada; Hiroki Miyabayashi (Australas. J Comb., 2007)

Double circulant and quasi-twisted self-dual codes over F5 and F7. - T. Aaron Gulliver; Masaaki Harada; Hiroki Miyabayashi (Adv. Math. Commun., 2007)

On the covering radii of extremal doubly even self-dual codes. - Masaaki Harada; Akihiro Munemasa (Adv. Math. Commun., 2007)

An extremal singly even self-dual code of length 88. - Masaaki Harada; Takuji Nishimura (Adv. Math. Commun., 2007)

Extremal self-dual codes of length 64 through neighbors and covering radii. - Naoki Chigira; Masaaki Harada; Masaaki Kitazume (Des. Codes Cryptogr., 2007)

Extremal Ternary Self-Dual Codes Constructed from Negacirculant Matrices. - Masaaki Harada; Wolf H. Holzmann; Hadi Kharaghani; M. Khorvash (Graphs Comb., 2007)

Performance Improvement of M-ary CSK by Using a Code Set Having Low Auto- and Cross-Correlation Properties in Multipath Fading Channels. - Hiroaki Nakazima; Masaaki Harada (IEICE Trans. Commun., 2007)

On doubly circulant doubly even self-dual [72, 36, 12] codes. - T. Aaron Gulliver; Masaaki Harada (Australas. J Comb., 2008)

An Extremal Doubly Even Self-Dual Code of Length 112. - Masaaki Harada (Electron. J. Comb., 2008)

There exists no self-dual [24,12,10] code over F5 - Masaaki Harada; Akihiro Munemasa (CoRR, 2008)

Determination of weight enumerators of binary extremal self-dual [42, 21, 8] codes. - Stefka Bouyuklieva; Masaaki Harada; Akihiro Munemasa (Finite Fields Their Appl., 2008)

Performance Analysis of M-ary Orthogonal Code Shift Keying in Fading Channels. - Masaaki Harada; Keiji Taniguchi (IEICE Trans. Commun., 2008)

New Nonbinary Self-Dual Codes. - T. Aaron Gulliver; Masaaki Harada (IEEE Trans. Inf. Theory, 2008)

On the Classification of Self-dual -Codes. - Masaaki Harada; Akihiro Munemasa (IMACC, 2009)

New extremal formally self-dual even codes of length 30. - Masaaki Harada; Katsushi Waki (Adv. Math. Commun., 2009)

An Upper Bound on the Minimum Weight of Type II ZZ2k-Codes - Masaaki Harada; Tsuyoshi Miezaki (CoRR, 2009)

There exists no self-dual [24, 12, 10] code over mathbb F5{{ mathbb F}_5}. - Masaaki Harada; Akihiro Munemasa (Des. Codes Cryptogr., 2009)

A complete classification of ternary self-dual codes of length 24. - Masaaki Harada; Akihiro Munemasa (J. Comb. Theory A, 2009)

Classification of ternary extremal self-dual codes of length 28. - Masaaki Harada; Akihiro Munemasa; Boris Venkov (Math. Comput., 2009)

Mutually Disjoint Steiner Systems S(5, 8, 24) and 5-(24,12,48) Designs. - Makoto Araya; Masaaki Harada (Electron. J. Comb., 2010)

Classification of Generalized Hadamard Matrices H(6,3) and Quaternary Hermitian Self-Dual Codes of Length 18. - Masaaki Harada; Clement W. H. Lam; Akihiro Munemasa; Vladimir D. Tonchev (Electron. J. Comb., 2010)

MDS self-dual codes of lengths 16 and 18. - T. Aaron Gulliver; Masaaki Harada (Int. J. Inf. Coding Theory, 2010)

Extremal Type II Z4-codes of lengths 56 and 64. - Masaaki Harada (J. Comb. Theory A, 2010)

New binary singly even self-dual codes. - Masaaki Harada; Michael Kiermaier; Alfred Wassermann; Radinka Yorgova (IEEE Trans. Inf. Theory, 2010)

A Complete Classification of Doubly Even Self-Dual Codes of Length 40 - Masaaki Harada (CoRR, 2011)

On the Residue Codes of Extremal Type II Z4-Codes of Lengths 32 and 40 - Masaaki Harada (CoRR, 2011)

Some Extremal Self-Dual Codes and Unimodular Lattices in Dimension 40 - Masaaki Harada (CoRR, 2011)

Optimal Self-Dual Z4-Codes and a Unimodular Lattice in Dimension 41 - Masaaki Harada (CoRR, 2011)

Hadamard matrices of order 32 and extremal ternary self-dual codes. - Koichi Betsumiya; Masaaki Harada; Hiroshi Kimura (Des. Codes Cryptogr., 2011)

On the residue codes of extremal Type II Z4-codes of lengths 32 and 40. - Masaaki Harada (Discret. Math., 2011)

Performance analysis of coded MIMO OFDM in multipath fading channel. - Masaaki Harada (IEICE Electron. Express, 2011)

An upper bound on the minimum weight of Type II Z2k-codes. - Masaaki Harada; Tsuyoshi Miezaki (J. Comb. Theory A, 2011)

Classification of Quaternary Hermitian Self-Dual Codes of Length 20. - Masaaki Harada; Akihiro Munemasa (IEEE Trans. Inf. Theory, 2011)

Cross-Layer adaptive power save control method for wireless local area networks. - Hirokazu Kobayashi; Masaaki Harada; Satoshi Senga; Kazushige Yamada; Junichro Soeda; Tsutomu Sekibe (WiMob, 2012)

Application of Bayesian Network to stock price prediction. - Eisuke Kita; Masaaki Harada; Takao Mizuno (Artif. Intell. Res., 2012)

Classification of self-dual codes of length 36. - Masaaki Harada; Akihiro Munemasa (Adv. Math. Commun., 2012)

A Complete Classification of Doubly Even Self-dual Codes of Length 40. - Koichi Betsumiya; Masaaki Harada; Akihiro Munemasa (Electron. J. Comb., 2012)

On some optimal linear codes over F5 - Makoto Araya; Masaaki Harada (CoRR, 2012)

Optimal self-dual Z4-codes and a unimodular lattice in dimension 41. - Masaaki Harada (Finite Fields Their Appl., 2012)

On the Classification of Extremal Doubly Even Self-Dual Codes with 2-Transitive Automorphism Group - Naoki Chigira; Masaaki Harada; Masaaki Kitazume (CoRR, 2013)

There is no [21, 5, 14] code over F5. - Makoto Araya; Masaaki Harada (Discret. Math., 2013)

Some extremal self-dual codes and unimodular lattices in dimension 40. - Stefka Bouyuklieva; Iliya Bouyukliev; Masaaki Harada (Finite Fields Their Appl., 2013)

On the residue codes of self-dual Z4-codes with large minimum Lee weights. - Masaaki Harada (CoRR, 2014)

On the classification of extremal doubly even self-dual codes with 2-transitive automorphism groups. - Naoki Chigira; Masaaki Harada; Masaaki Kitazume (Des. Codes Cryptogr., 2014)

On the existence of extremal Type II ℤ2k-codes. - Masaaki Harada; Tsuyoshi Miezaki (Math. Comput., 2014)

New self-dual additive $ mathbb{F}_4$-codes constructed from circulant graphs. - Markus Grassl; Masaaki Harada (CoRR, 2015)

On a 5-design related to a putative extremal doubly even self-dual code of length a multiple of 24. - Masaaki Harada (Des. Codes Cryptogr., 2015)

Extremal Type I Zk-Codes and k-Frames of Odd Unimodular Lattices. - Masaaki Harada (IEEE Trans. Inf. Theory, 2015)

Supplementary difference sets related to a certain class of complex spherical 2-codes. - Makoto Araya; Masaaki Harada; Sho Suda (Australas. J Comb., 2016)

On binary codes related to mutually quasi-unbiased weighing matrices. - Masaaki Harada; Sho Suda (Australas. J Comb., 2016)

Note on the residue codes of self-dual ℤ4-codes having large minimum Lee weights. - Masaaki Harada (Adv. Math. Commun., 2016)

The weight distribution of the self-dual [128, 64] polarity design code. - Masaaki Harada; Ethan Novak; Vladimir D. Tonchev (Adv. Math. Commun., 2016)

On extremal double circulant self-dual codes of lengths $90$ and $92$. - T. Aaron Gulliver; Masaaki Harada (CoRR, 2016)

On the classification of self-dual [20, 10, 9] codes over GF(7). - Masaaki Harada; Akihiro Munemasa (Finite Fields Their Appl., 2016)

Performance of ternary double circulant, double twistulant, and self-dual codes. - T. Aaron Gulliver; Masaaki Harada (Appl. Algebra Eng. Commun. Comput., 2017)

On the classification of ℤ4-codes. - Makoto Araya; Masaaki Harada; Hiroki Ito; Ken Saito (Adv. Math. Commun., 2017)

On the performance of optimal double circulant even codes. - T. Aaron Gulliver; Masaaki Harada (Adv. Math. Commun., 2017)

On the classification of $ mathbb{Z}_4$-codes. - Makoto Araya; Masaaki Harada; Hiroki Ito; Ken Saito (CoRR, 2017)

Extremal Type II $ mathbb{Z}_4$-codes constructed from binary doubly even self-dual codes of length $40$. - Masaaki Harada (CoRR, 2017)

Some restrictions on weight enumerators of singly even self-dual codes II. - Masaaki Harada; Akihiro Munemasa (CoRR, 2017)

New extremal singly even self-dual codes of lengths 64 and 66. - Damyan Anev; Masaaki Harada; Nikolay I. Yankov (CoRR, 2017)

New self-dual additive F4-codes constructed from circulant graphs. - Markus Grassl; Masaaki Harada (Discret. Math., 2017)

Extremal Type II ℤ4-codes constructed from binary doubly even self-dual codes of length 40. - Masaaki Harada (Discret. Math., 2017)

On s-extremal singly even self-dual [24k + 8, 12k + 4, 4k + 2] codes. - Masaaki Harada; Akihiro Munemasa (Finite Fields Their Appl., 2017)

Quasi-unbiased Hadamard matrices and weakly unbiased Hadamard matrices: A coding-theoretic approach. - Makoto Araya; Masaaki Harada; Sho Suda (Math. Comput., 2017)

Architecture of an FPGA-Based Heterogeneous System for Code-Search Problems. - Yuki Hiradate; Hasitha Muthumala Waidyasooriya; Masanori Hariyama; Masaaki Harada (SCFA, 2018)

Nonexistence of Certain Singly Even Self-Dual Codes with Minimal Shadow. - Stefka Bouyuklieva; Masaaki Harada; Akihiro Munemasa (Electron. J. Comb., 2018)

New quantum codes constructed from some self-dual additive 𝑭4-codes. - Masaaki Harada (CoRR, 2018)

Binary extremal self-dual codes of length 60 and related codes. - Masaaki Harada (Des. Codes Cryptogr., 2018)

New quantum codes constructed from some self-dual additive F4-codes. - Masaaki Harada (Inf. Process. Lett., 2018)

On extremal double circulant self-dual codes of lengths 90-96. - T. Aaron Gulliver; Masaaki Harada (Appl. Algebra Eng. Commun. Comput., 2019)

Singly even self-dual codes of length 24k + 10 and minimum weight 4k + 2. - Masaaki Harada (Cryptogr. Commun., 2019)

Binary linear complementary dual codes. - Masaaki Harada; Ken Saito (Cryptogr. Commun., 2019)

Existence of some optimal maximal entanglement entanglement-assisted quantum codes. - Masaaki Harada (CoRR, 2019)

On the minimum weights of ternary linear complementary dual codes. - Makoto Araya; Masaaki Harada (CoRR, 2019)

On the classification of linear complementary dual codes. - Makoto Araya; Masaaki Harada (Discret. Math., 2019)

New doubly even self-dual codes having minimum weight 20. - Masaaki Harada (Adv. Math. Commun., 2020)

On the minimum weights of binary linear complementary dual codes. - Makoto Araya; Masaaki Harada (Cryptogr. Commun., 2020)

Construction of s-extremal optimal unimodular lattices in dimension 52. - Masaaki Harada (Int. J. Comput. Math. Comput. Syst. Theory, 2020)

Remark on subcodes of linear complementary dual codes. - Masaaki Harada; Ken Saito (Inf. Process. Lett., 2020)

Quaternary Hermitian Linear Complementary Dual Codes. - Makoto Araya; Masaaki Harada; Ken Saito (IEEE Trans. Inf. Theory, 2020)

Characterization and classification of optimal LCD codes. - Makoto Araya; Masaaki Harada; Ken Saito (Des. Codes Cryptogr., 2021)

Construction of binary LCD codes, ternary LCD codes and quaternary Hermitian LCD codes. - Masaaki Harada (Des. Codes Cryptogr., 2021)

On the existence of s-extremal singly even self-dual codes. - Masaaki Harada (Discret. Math. Algorithms Appl., 2021)

On the minimum weights of binary LCD codes and ternary LCD codes. - Makoto Araya; Masaaki Harada; Ken Saito (Finite Fields Their Appl., 2021)

On the classification of quaternary optimal Hermitian LCD codes. - Makoto Araya; Masaaki Harada (Cryptogr. Commun., 2022)

Construction of extremal Type II Z2k-codes. - Masaaki Harada (CoRR, 2022)

Self-dual codes over F5 and s-extremal unimodular lattices. - Masaaki Harada (CoRR, 2022)

Self-dual codes over F5 and s-extremal unimodular lattices. - Masaaki Harada (Discret. Math., 2023)

Hadamard matrices related to a certain series of ternary self-dual codes. - Makoto Araya; Masaaki Harada; Koji Momihara (Des. Codes Cryptogr., 2023)

Construction of extremal Type II Z2k-codes. - Masaaki Harada (Finite Fields Their Appl., 2023)

Some restrictions on the weight enumerators of near-extremal ternary self-dual codes and quaternary Hermitian self-dual codes. - Makoto Araya; Masaaki Harada (Des. Codes Cryptogr., 2023)

Improved lower bounds for self-dual codes over $ mathbb{F}_{11} $, $ mathbb{F}_{13} $, $ mathbb{F}_{17} $, $ mathbb{F}_{19} $ and $ mathbb{F}_{23} $. - T. Aaron Gulliver; Masaaki Harada (Adv. Math. Commun., 2024)

Hadamard Matrices of Orders 60 and 64 with Automorphisms of Orders 29 and 31. - Makoto Araya; Masaaki Harada; Vladimir D. Tonchev (Electron. J. Comb., 2024)

Hadamard matrices of order 36 formed by codewords in some ternary self-dual codes. - Masaaki Harada; Keita Ishizuka (Discret. Math., 2024)

Ternary Extremal Four-Negacirculant Self-Dual Codes. - Masaaki Harada; Keita Ishizuka; Hadi Kharaghani (Graphs Comb., 2024)

On the classification of skew Hadamard matrices of order $ varvec{36}$ and related structures. - Makoto Araya; Masaaki Harada; Hadi Kharaghani; Ali Mohammadian; Behruz Tayfeh-Rezaie (Des. Codes Cryptogr., 2024)

A method for constructing quaternary Hermitian self-dual codes and an application to quantum codes. - Masaaki Harada (Des. Codes Cryptogr., 2024)

On the minimum weights of quaternary Hermitian LCD codes. - Makoto Araya; Masaaki Harada (Cryptogr. Commun., 2024)

Characterizations of the Minimum Weights of LCD Codes of Large Dimensions. - Makoto Araya; Masaaki Harada; Keita Ishizuka; Yuto Tanaka (IEEE Trans. Inf. Theory, 2024)

Unbiased Hadamard Matrices and Ternary Self-dual Codes. - Masaaki Harada; Hadi Kharaghani (Graphs Comb., 2025)

Ternary near-extremal self-dual codes of lengths 36, 48 and 60. - Masaaki Harada (Discret. Math., 2026)