Superconducting digital electronics. - Hisao Hayakawa; Nobuyuki Yoshikawa; Shinichi Yorozu; Akira Fujimaki (Proc. IEEE, 2004)

Development of Passive Interconnection Technology for SFQ Circuits. - Yoshihito Hashimoto; Shinichi Yorozu; Yoshio Kameda; Akira Fujimaki; Hirotaka Terai; Nobuyuki Yoshikawa (IEICE Trans. Electron., 2005)

High-Resolution Analog-to-Digital Converters toward Software-Defined-Radio Receivers. - Akira Fujimaki; Yoshinori Nishido; Akito Sekiya (IEICE Trans. Electron., 2006)

Superconductive Single-Flux-Quantum Circuit/System Technology and 40Gb/s Switch System Demonstration. - Yoshihito Hashimoto; Shuichi Nagasawa; Tetsuro Satoh; Kenji Hinode; Hideo Suzuki; Toshiyuki Miyazaki; Mutsuo Hidaka; Nobuyuki Yoshikawa; Hirotaka Terai; Akira Fujimaki (ISSCC, 2008)

Direct measurements of propagation delay of single-flux-quantum circuits by time-to-digital converters. - Kazunori Nakamiya; Nobuyuki Yoshikawa; Akira Fujimaki; Hirotaka Terai; Yoshihito Hashimoto (IEICE Electron. Express, 2008)

Bit-Serial Single Flux Quantum Microprocessor CORE. - Akira Fujimaki; Masamitsu Tanaka; Takahiro Yamada; Yuki Yamanashi; Heejoung Park; Nobuyuki Yoshikawa (IEICE Trans. Electron., 2008)

Proposal of a Desk-Side Supercomputer with Reconfigurable Data-Paths Using Rapid Single-Flux-Quantum Circuits. - Naofumi Takagi; Kazuaki J. Murakami; Akira Fujimaki; Nobuyuki Yoshikawa; Koji Inoue; Hiroaki Honda (IEICE Trans. Electron., 2008)

Design of fast digit-serial adders using SFQ logic circuits. - Heejoung Park; Yuki Yamanashi; Nobuyuki Yoshikawa; Masamitsu Tanaka; Akira Fujimaki (IEICE Electron. Express, 2009)

Mapping scientific applications on a large-scale data-path accelerator implemented by single-flux quantum (SFQ) circuits. - Farhad Mehdipour; Hiroaki Honda; Hiroshi Kataoka; Koji Inoue; Irina Kataeva; Kazuaki J. Murakami; Hiroyuki Akaike; Akira Fujimaki (DATE, 2010)

Foreword. - Akira Fujimaki (IEICE Trans. Electron., 2010)

All MgB2 Josephson Junctions with Amorphous Boron Barriers. - Naoki Mitamura; Chikaze Maruyama; Hiroyuki Akaike; Akira Fujimaki; Rintaro Ishii; Yoshihiro Niihara; Michio Naito (IEICE Trans. Electron., 2010)

Automated Passive-Transmission-Line Routing Tool for Single-Flux-Quantum Circuits Based on A* Algorithm. - Masamitsu Tanaka; Koji Obata; Yuki Ito; Shota Takeshima; Motoki Sato; Kazuyoshi Takagi; Naofumi Takagi; Hiroyuki Akaike; Akira Fujimaki (IEICE Trans. Electron., 2010)

100 GHz Demonstrations Based on the Single-Flux-Quantum Cell Library for the 10 kA/cm2 Nb Multi-Layer Process. - Yuki Yamanashi; Toshiki Kainuma; Nobuyuki Yoshikawa; Irina Kataeva; Hiroyuki Akaike; Akira Fujimaki; Masamitsu Tanaka; Naofumi Takagi; Shuichi Nagasawa; Mutsuo Hidaka (IEICE Trans. Electron., 2010)

NbN Josephson Junctions for Single-Flux-Quantum Circuits. - Hiroyuki Akaike; Naoto Naito; Yuki Nagai; Akira Fujimaki (IEICE Trans. Electron., 2011)

Proposal of a Compact Neutron Diffraction System with a Single-Flux-Quantum Signal Processor. - Akira Fujimaki; Isao Nakanishi; Shigeyuki Miyajima; Kohei Arai; Yukio Akita; Takekazu Ishida (IEICE Trans. Electron., 2011)

Advancement of superconductor digital electronics. - Akira Fujimaki (IEICE Electron. Express, 2012)

Large-Scale Integrated Circuit Design Based on a Nb Nine-Layer Structure for Reconfigurable Data-Path Processors. - Akira Fujimaki; Masamitsu Tanaka; Ryo Kasagi; Katsumi Takagi; Masakazu Okada; Yuhi Hayakawa; Kensuke Takata; Hiroyuki Akaike; Nobuyuki Yoshikawa; Shuichi Nagasawa; Kazuyoshi Takagi; Naofumi Takagi (IEICE Trans. Electron., 2014)

A Reconfigurable Data-Path Accelerator Based on Single Flux Quantum Circuits. - Hiroshi Kataoka; Hiroaki Honda; Farhad Mehdipour; Nobuyuki Yoshikawa; Akira Fujimaki; Hiroyuki Akaike; Naofumi Takagi; Kazuaki J. Murakami (IEICE Trans. Electron., 2014)

Nb 9-Layer Fabrication Process for Superconducting Large-Scale SFQ Circuits and Its Process Evaluation. - Shuichi Nagasawa; Kenji Hinode; Tetsuro Satoh; Mutsuo Hidaka; Hiroyuki Akaike; Akira Fujimaki; Nobuyuki Yoshikawa; Kazuyoshi Takagi; Naofumi Takagi (IEICE Trans. Electron., 2014)

Design and High-Speed Demonstration of Single-Flux-Quantum Bit-Serial Floating-Point Multipliers Using a 10kA/cm2 Nb Process. - Xizhu Peng; Yuki Yamanashi; Nobuyuki Yoshikawa; Akira Fujimaki; Naofumi Takagi; Kazuyoshi Takagi; Mutsuo Hidaka (IEICE Trans. Electron., 2014)

High-Speed Operation of 0.25-mV RSFQ Arithmetic Logic Unit Based on 10-kA/cm2 Nb Process Technology. - Masamitsu Tanaka; Atsushi Kitayama; Masakazu Okada; Tomohito Kouketsu; Takumi Takinami; Masato Ito; Akira Fujimaki (IEICE Trans. Electron., 2014)

Development of an Advanced Circuit Model for Superconducting Strip Line Detector Arrays. - Ali Bozbey; Yuma Kita; Kyohei Kamiya; Misaki Kozaka; Masamitsu Tanaka; Takekazu Ishida; Akira Fujimaki (IEICE Trans. Electron., 2016)

Energy/Space-Efficient Rapid Single-Flux-Quantum Circuits by Using π-Shifted Josephson Junctions. - Tomohiro Kamiya; Masamitsu Tanaka; Kyosuke Sano; Akira Fujimaki (IEICE Trans. Electron., 2018)

Thermally Assisted Superconductor Transistors for Josephson-CMOS Hybrid Memories. - Kyosuke Sano; Masato Suzuki; Kohei Maruyama; Soya Taniguchi; Masamitsu Tanaka; Akira Fujimaki; Masumi Inoue; Nobuyuki Yoshikawa (IEICE Trans. Electron., 2018)

A 48GHz 5.6mW Gate-Level-Pipelined Multiplier Using Single-Flux Quantum Logic. - Ikki Nagaoka; Masamitsu Tanaka; Koji Inoue; Akira Fujimaki (ISSCC, 2019)

32 GHz 6.5 mW Gate-Level-Pipelined 4-Bit Processor using Superconductor Single-Flux-Quantum Logic. - Koki Ishida; Masamitsu Tanaka; Ikki Nagaoka; Takatsugu Ono; Satoshi Kawakami; Teruo Tanimoto; Akira Fujimaki; Koji Inoue (VLSI Circuits, 2020)

Planarized Nb 4-Layer Fabrication Process for Superconducting Integrated Circuits and Its Fabricated Device Evaluation. - Shuichi Nagasawa; Masamitsu Tanaka; Naoki Takeuchi; Yuki Yamanashi; Shigeyuki Miyajima; Fumihiro China; Taiki Yamae; Koki Yamazaki; Yuta Somei; Naonori Sega; Yoshinao Mizugaki; Hiroaki Myoren; et al. (IEICE Trans. Electron., 2021)

Design of Variable Bit-Width Arithmetic Unit Using Single Flux Quantum Device. - Iori Ishikawa; Ikki Nagaoka; Ryota Kashima; Koki Ishida; Kosuke Fukumitsu; Keitaro Oka; Masamitsu Tanaka; Satoshi Kawakami; Teruo Tanimoto; Takatsugu Ono; Akira Fujimaki; Koji Inoue (ISCAS, 2022)

Ferromagnetic π Junctions on Niobium Four-Layer Structure for Superconductor Large-Scale Integrated Circuits. - Akira Fujimaki; Daiki Hasegawa; Yuto Takeshita; Feng Li; Taro Yamashita; Masamitsu Tanaka (IEICE Trans. Electron., 2025)

Demonstration of Low-Power Shift-Register Based on Half-Flux-Quantum Logic. - Masamitsu Tanaka; Toranosuke Nakayama; Shoma Tanemura; Masayuki Higashi; Feng Li; Akira Fujimaki (IEICE Trans. Electron., 2025)