Optical FSK/IM Signal Generation Using an Integrated Optical FSK Modulator. - Tetsuya Kawanishi; Kaoru Higuma; Takahisa Fujita; Junichiro Ichikawa; Satoshi Shinada; Takahide Sakamoto; Masayuki Izutsu (IEICE Electron. Express, 2004)

10Gbit/s FSK transmission over 95km SMF using a LiNbO3 modulator. - Takahisa Fujita; Tetsuya Kawanishi; Kaoru Higuma; Junichiro Ichikawa; Satoshi Shinada; Takahide Sakamoto; Masayuki Izutsu (IEICE Electron. Express, 2005)

Optical FSK transmission with group delay compensated balance detection. - Tetsuya Kawanishi; Takahisa Fujita; Kaoru Higuma; Junichiro Ichikawa; Takahide Sakamoto; Masayuki Izutsu (IEICE Electron. Express, 2005)

Development of Automated Display Shelf with Conveyor Belt Type Product Face-Up Mechanism. - Masashi Seki; Maria Masuda; Yoshiteru Morii; Takahisa Fujita; Kazuyoshi Wada (SII, 2024)