E-Band Low-Noise Amplifier MMICs Using Nanogate InGaAs/InAlAs HEMT Technology. - Issei Watanabe; Akira Endoh; Takashi Mimura; Toshiaki Matsui (IEICE Trans. Electron., 2010)

Compact 141-GHz Differential Amplifier with 20-dB Peak Gain and 22-GHz 3-dB Bandwidth. - Shinsuke Hara; Kosuke Katayama; Kyoya Takano; Issei Watanabe; Norihiko Sekine; Akifumi Kasamatsu; Takeshi Yoshida; Shuhei Amakawa; Minoru Fujishima (IEICE Trans. Electron., 2016)

Human Emotional State Analysis During Driving Simulation Experiment Using Bio-Emotion Estimation Method. - Midori Sugaya; Issei Watanabe; Reiji Yoshida; Feng Chen 024 (COMPSAC (2), 2018)

32-Gbit/s CMOS Receivers in 300-GHz Band. - Shinsuke Hara; Kosuke Katayama; Kyoya Takano; Ruibing Dong; Issei Watanabe; Norihiko Sekine; Akifumi Kasamatsu; Takeshi Yoshida; Shuhei Amakawa; Minoru Fujishima (IEICE Trans. Electron., 2018)

Improved Algorithm to Trace Boundary Curves on Two-Dimensional Square Meshes. - Masatomo Inui; Munekazu Kawano; Issei Watanabe; Nobuyuki Umezu (Int. J. Autom. Technol., 2020)

A 76-Gbit/s 265-GHz CMOS Receiver. - Shinsuke Hara; Ruibing Dong; Sangyeop Lee; Kyoya Takano; Naoya Toshida; Satoru Tanoi; Tatsuo Hagino; Mohamed H. Mubarak; Norihiko Sekine; Issei Watanabe; Akifumi Kasamatsu; Kunio Sakakibara; et al. (A-SSCC, 2021)

Transmission Characteristics Control of 120 GHz-Band Bandstop Filter by Coupling Alignment-Free Lattice Pattern. - Akihiko Hirata; Koichiro Itakura; Taiki Higashimoto; Yuta Uemura; Tadao Nagatsuma; Takashi Tomura; Jiro Hirokawa; Norihiko Sekine; Issei Watanabe; Akifumi Kasamatsu (IEICE Trans. Electron., 2021)

Control of 120-GHz-Band Split Ring Resonator Filter by Coupling Lattice Pattern Substrate. - Koichiro Itakura; Akihiko Hirata; Masato Sonoda; Taiki Higashimoto; Tadao Nagatsuma; Takashi Tomura; Jiro Hirokawa; Norihiko Sekine; Issei Watanabe; Akifumi Kasamatsu (IEICE Trans. Electron., 2021)

Admittance Spectroscopy Up to 67 GHz in InGaAs/InAlAs Triple-Barrier Resonant Tunneling Diodes. - Kotaro Aikawa; Michihiko Suhara; Takumi Kimura; Junki Wakayama; Takeshi Makino; Katsuhiro Usui; Kiyoto Asakawa; Kouichi Akahane; Issei Watanabe (IEICE Trans. Electron., 2022)

Evaluation of Transmission Characteristics of 120-GHz-Band Close-Proximity Wireless Links Using Split-Ring-Resonator Absorber Integrated Planar Slot Antenna. - Akihiko Hirata; Tubasa Saijo; Yuma Kawamoto; Tadao Nagatsuma; Issei Watanabe; Norihiko Sekine; Akifumi Kasamatsu (IEICE Trans. Electron., 2023)

An Inverted-L Monopole Array With High Beam Coverage for Antenna-in-Package Modules at the 151.5-164 GHz Band. - Alberto Hernández-Escobar; Takashi Tomura; Ryosuke Hasaba; Hiroshi Taneda; Issei Watanabe (IEEE Access, 2024)

Trade-off relations between measurement dependence and hidden information for factorizable hidden variable models. - Ryo Takakura; Kei Morisue; Issei Watanabe; Gen Kimura (Quantum, 2025)