Polarization Mode Dispersion Characteristic of Optical Fiber Ribbons Inserted Tightly into Slots. - Kunihiro Toge; Kazuo Hogari; Fumihiko Yamamoto; Izumi Sankawa (IEICE Trans. Commun., 2005)

High-Speed MT Connector Assembly Method. - Koji Shibata; Masaaki Takaya; Kazuo Hogari; Izumi Sankawa; Tadashi Haibara (IEICE Trans. Commun., 2006)

10 Gb/s WDM Transmission at 1064 and 1550 nm over 24 km Photonic Crystal Fiber with Negative Power Penalties. - Kenji Kurokawa; Kyozo Tsujikawa; Katsusuke Tajima; Kazuhide Nakajima; Izumi Sankawa (IEICE Trans. Commun., 2007)