Millimeter-Wave GaN HEMT for Power Amplifier Applications. - Kazukiyo Joshin; Kozo Makiyama; Shiro Ozaki; Toshihiro Ohki; Naoya Okamoto; Yoshitaka Niida; Masaru Sato 001; Satoshi Masuda; Keiji Watanabe (IEICE Trans. Electron., 2014)

Remarkable Current Collapse Suppression in GaN HEMTs on Free-standing GaN Substrates. - Yusuke Kumazaki; Keiji Watanabe; Toshihiro Ohki; Junji Kotani; Shiro Ozaki; Yoshitaka Niida; Kozo Makiyama; Yuichi Minoura; Naoya Okamoto; Norikazu Nakamura (BCICTS, 2019)

Solving the sparse QUBO on multiple GPUs for Simulating a Quantum Annealer. - Tomohiro Imanaga; Koji Nakano; Ryota Yasudo; Yasuaki Ito; Yuya Kawamata; Ryota Katsuki; Shiro Ozaki; Takashi Yazane; Kenichiro Hamano (CANDAR, 2021)

Recent Progress on High Output Power, High Frequency and Wide Bandwidth GaN Power Amplifiers. - Masaru Sato 001; Yoshitaka Niida; Atsushi Yamada; Junji Kotani; Shiro Ozaki; Toshihiro Ohki; Naoya Okamoto; Norikazu Nakamura (IEICE Trans. Electron., 2021)

Bit duplication technique to generate hard QUBO problems. - Xiaotian Li; Koji Nakano; Yasuaki Ito; Daisuke Takafuji; Takashi Yazane; Junko Yano; Shiro Ozaki; Ryota Katsuki; Rie Mori (CANDARW, 2022)

A benchmark QUBO problem inspired by digital halftoning based on the human visual system. - Koji Nakano; Yasuaki Ito; Daisuke Takafuji; Takashi Yazane; Junko Yano; Shiro Ozaki; Ryota Katsuki; Rie Mori (CANDAR, 2022)

Graph-theoretic Formulation of QUBO for Scalable Local Search on GPUs. - Ryota Yasudo; Koji Nakano; Yasuaki Ito; Yuya Kawamata; Ryota Katsuki; Shiro Ozaki; Takashi Yazane; Kenichiro Hamano (IPDPS Workshops, 2022)

Solving the N-Queens Puzzle by a QUBO Model with Quadratic Size. - Shunsuke Tsukiyama; Koji Nakano; Yasuaki Ito; Takashi Yazane; Junko Yano; Takumi Kato; Shiro Ozaki; Rie Mori; Ryota Katsuki (candar, 2023)

Diverse Adaptive Bulk Search: a Framework for Solving QUBO Problems on Multiple GPUs. - Koji Nakano; Daisuke Takafuji; Yasuaki Ito; Takashi Yazane; Junko Yano; Shiro Ozaki; Ryota Katsuki; Rie Mori (IPDPS Workshops, 2023)

Dual-Matrix Domain-Wall: A Novel Technique for Generating Permutations by QUBO and Ising Models with Quadratic Sizes. - Koji Nakano; Shunsuke Tsukiyama; Yasuaki Ito; Takashi Yazane; Junko Yano; Takumi Kato; Shiro Ozaki; Rie Mori; Ryota Katsuki (CoRR, 2023)

High-Efficiency 250-320GHz Power Amplifiers Using InP-Based Metal-Oxide-Semiconductor High-Electron-Mobility Transistors. - Yusuke Kumazaki; Shiro Ozaki; Naoya Okamoto; Naoki Hara; Yasuhiro Nakasha; Masaru Sato 001; Toshihiro Ohki (IEICE Trans. Electron., 2023)

Sub-THz SC-FDE MIMO Systems with Deep Neural Network Equalization for 100 Gbps of 6G. - Liang Zhou; Masafumi Tsutsui; Yasuhiro Nakasha; Shiro Ozaki; Takashi Dateki; Yusuke Kumazaki; Toshihiro Ohki (VTC Fall, 2024)

Bit duplication technique to generate hard quadratic unconstrained binary optimization problems with adjustable sizes. - Xiaotian Li; Koji Nakano; Yasuaki Ito; Daisuke Takafuji; Takashi Yazane; Junko Yano; Takumi Kato; Shiro Ozaki; Rie Mori; Ryota Katsuki (Concurr. Comput. Pract. Exp., 2024)

A 9.3% PAE, 9.2-dBm POUT power amplifier and -1.9-dB Gc upconverting mixer using InP-based MOS HEMTs for 300-GHz phased-array transmitters. - Yasuhiro Nakasha; Shiro Ozaki; Yusuke Kumazaki; Naoya Okamoto; Shoichi Shiba; Masaru Sato 001; Naoki Hara; Toshihiro Ohki (IEICE Electron. Express, 2025)