Detailed investigation of the effects of La and Al content on the electrical characteristics and reliability properties of La-Al-O gate dielectrics. - Masamichi Suzuki; Masato Koyama; Atsuhiro Kinoshita (Microelectron. Reliab., 2010)

Comparison between zero power control methods of spiral motor. - Masato Koyama; Yasutaka Fujimoto (IECON, 2013)

Validation of spiral motor parameters by FEA and experimental identification. - Masato Koyama; Takahiro Mikami; Yasutaka Fujimoto (ISIE, 2013)

Proposal of current integral zero power control with force feedforward for helical motor. - Masato Koyama; Yasutaka Fujimoto (AMC, 2014)

Control of an Interior Permanent-Magnet Screw Motor With Power-Saving Axial-Gap Displacement Adjustment. - Yasutaka Fujimoto; Tsubasa Suenaga; Masato Koyama (IEEE Trans. Ind. Electron., 2014)

Improvement of position tracking and magnetic-levitation control based on optimal-control for helical motor. - Masato Koyama; Yasutaka Fujimoto (IECON, 2016)

Robust-control using model-error-feedback CDOB and DOB under variable-time-delay. - Masato Koyama; Tomoyuki Shimono; Yosuke Asano; Yasutaka Fujimoto (AMC, 2018)

SPICE simulation of tunnel FET aiming at 32 kHz crystal-oscillator operation. - Tetsufumi Tanamoto; Chika Tanaka; Satoshi Takaya; Masato Koyama (IEICE Electron. Express, 2018)

Ag Ionic Memory Cell Technology for Terabit-Scale High-DensityApplication. - Shosuke Fujii; Reika Ichihara; Takuya Konno; Marina Yamaguchi; Harumi Seki; Hiroki Tanaka; Dandan Zhao; Yoko Yoshimura; Masumi Saitoh; Masato Koyama (VLSI Circuits, 2019)

Mathematical Modeling and Validation of Output Torques and Dynamics for a Knee/Ankle Assistive Device Using a Single Actuator. - Akiyasu Watanabe; Mitsunori Ariga; Masato Koyama; Satoshi Komada (IECON, 2023)

Design of optimal position/force/power-saving magLev control system of helical motor considering complementary sensitivity function. - Yuta Atsumi; Masato Koyama (SICE, 2023)

Proposal of Virtual Indirect Modulation for the Single-Phase Matrix Converter Toward Realizing the Universal Direct Converter. - Momoka Yabuuchi; Masato Koyama; Daiki Yutaka (IECON, 2024)