Logic circuits using resonant-tunneling hot-electron transistors (RHETs). - Motomu Takatsu; Kenichi Imamura; Hiroaki Ohnishi; Toshihiko Mori; Takami Adachihara; Shunichi Muto; Naoki Yokoyama (IEEE J. Solid State Circuits, 1992)

A 49-GHz preamplifier with a transimpedance gain of 52 dBΩ using InP HEMTs. - Hisao Shigematsu; Masaru Sato 001; Toshihide Suzuki; Tsuyoshi Takahashi; Kenji Imanishi; Naoki Hara; Hiroaki Ohnishi; Yuu Watanaba (IEEE J. Solid State Circuits, 2001)

Minimization of roundoff noise in state-space digital filters using error feedback and coordinate transformation. - Takao Hinamoto; Hiroaki Ohnishi (ISCAS (5), 2002)

Joint optimization of error feedback and coordinate transformation for roundoff noise minimization in state-space digital filters. - Takao Hinamoto; Hiroaki Ohnishi; Wu-Sheng Lu (ISCAS (4), 2003)

Minimization of L2-sensitivity for state-space digital filters subject to L2-scaling constraints. - Takao Hinamoto; Hiroaki Ohnishi; Wu-Sheng Lu (ISCAS (3), 2004)

Joint optimization of error feedback and coordinate transformation for roundoff noise minimization in 2D state-space digital filters. - Takao Hinamoto; Hiroaki Ohnishi; Wu-Sheng Lu (ISCAS (3), 2004)

Minimization of L2-sensitivity for 2-D state-space digital filters subject to L2-scaling constraints. - Takao Hinamoto; Hiroaki Ohnishi; Wu-Sheng Lu (ISCAS (3), 2004)

Minimization of L2-sensitivity for state-space digital filters subject to L2-dynamic-range scaling constraints. - Takao Hinamoto; Hiroaki Ohnishi; Wu-Sheng Lu (IEEE Trans. Circuits Syst. II Express Briefs, 2005)

Roundoff Noise Minimization for 2-D State-Space Digital Filters Using Joint Optimization of Error Feedback and Realization. - Takao Hinamoto; Hiroaki Ohnishi; Wu-Sheng Lu (IEEE Trans. Signal Process., 2006)