A low-current Ku-band GaAs monolithic image rejection down-converter. - Toshihiko Yoshimasu; Keiichi Sakuno; Nobuyuki Matsumoto; Eiji Suematsu; Toshiya Tsukao; Takashi Tomita (IEEE J. Solid State Circuits, 1992)

A 184 mW Fully Integrated DVB-H Tuner With a Linearized Variable Gain LNA and Quadrature Mixers Using Cross-Coupled Transconductor. - Kunihiko Iizuka; Hiroshi Kawamura; Takanobu Fujiwara; Kanetomo Kagoshima; Shuichi Kawama; Hiroshi Kijima; Masato Koutani; Shinji Toyoyama; Keiichi Sakuno (IEEE J. Solid State Circuits, 2007)

A High-Power Low-Distortion GaAs HBT Power Amplifier for Mobile Terminals Used in Broadband Wireless Applications. - Tohru Oka; Masatomo Hasegawa; Michitoshi Hirata; Yoshihisa Amano; Yoshiteru Ishimaru; Hiroshi Kawamura; Keiichi Sakuno (IEEE J. Solid State Circuits, 2007)

Time-Shifted Control of Self-Synchronous Rectifier For MHz Wireless Power Transfer Systems. - Masato Sasaki; Keiichi Sakuno; Masayoshi Yamamoto (ISIE, 2021)