Identification of loss factors by evaluating backscattered modal loss ratio obtained with 1-µm-band mode-detection OTDR. - Atsushi Nakamura; Keiji Okamoto; Yusuke Koshikiya; Tetsuya Manabe; Manabu Oguma; Toshikazu Hashimoto; Mikitaka Itoh (OFC, 2015)

Potential Fault Detection in Optical Cables Using OTDR Operating in Two-Modes. - Atsushi Nakamura; Keiji Okamoto; Yusuke Koshikiya; Tetsuya Manabe (OECC/PSC, 2019)

SONOS Embedded Flash IP Using Trap-Depth-Controlled SiN Film Enabling Data Retention more than 10 years at 200°C. - Yasuhiro Taniguchi; Shoji Yoshida; Teruhiko Egashira; ChihBin Kuo; YiYang Shie; YuChun Wang; ChenYu Huang; Tsuyoshi Tamatsu; Keiji Okamoto; Masanobu Hishiki; Yasushi Sasaki; Fukuo Owada; et al. (IMW, 2023)