AS

Akira Sanpei

SO Sony: 9 patents #4,874 of 25,231Top 20%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
NM Nippon Motorola: 1 patents #2 of 12Top 20%
Overall (All Time): #512,257 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
RE45919 Control device and method and power supply device Kazuharu Yanagihara 2016-03-08
8847550 Control device and method and power supply device Kazuharu Yanagihara 2014-09-30
7900083 Disk array apparatus, disk array control method and disk array controller Kiyoshi Tanaka, Fumio Hanazawa, Hiroaki Sato, Keiju Takizawa 2011-03-01
7339354 Rechargeable battery charging method and apparatus 2008-03-04
5547775 Circuit for preventing overcharge and overdischarge of secondary batteries Yasuhito Eguchi, Masayuki Sato, Toshio Narushima, Kanji Murano 1996-08-20
5530336 Battery protection circuit Yasuhito Eguchi, Hitoshi Okada, Kanji Murano 1996-06-25
5493197 Battery charge control circuit Yasuhito Eguchi, Kanji Murano, Hajime Tamiya 1996-02-20
5304915 Overcharge preventing device and overdischarge preventing device for a secondary battery Kanji Murano 1994-04-19
5237259 Charging method for secondary battery 1993-08-17
5122751 Device for detecting residual capacity of a battery both in load and no load conditions Takayuki Aita, Kazuo Honda, Hiroshi Ogata 1992-06-16