Ichiro Kiyokawa

UPS with electric-energy storage function using VRLA batteries : Powering the broadband network

Tomonobu Tsujikawa, Seiichi Muroyama, Toshio Matsushima, 2004 .

UPS with an electric-energy storage function using VRLA batteries

Toshio Matsushima, Seiichi Muroyama, Ichiro Kiyokawa, 2003, The 25th International Telecommunications Energy Conference, 2003. INTELEC '03..

UPS with Electric-Energy Storage Function Using VRLA Batteries(Rectifiers, Inverters and UPS)( the 25th International Telecommunications Energy Conference(INTELEC'03))

Tomonobu Tsujikawa, Toshio Matsushima, Seiichi Muroyama, 2004 .

Integrated VRLA-battery management system

Tomonobu Tsujikawa, Ichiro Kiyokawa, K. Niida, 2000, INTELEC. Twenty-Second International Telecommunications Energy Conference (Cat. No.00CH37131).