The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2009
Filed:
May. 17, 2005
Akihiko Kanouda, Hitachinaka, JP;
Minehiro Nemoto, Hitachi, JP;
Fumikazu Takahashi, Hitachi, JP;
Masahiro Hamaogi, Odawara, JP;
Yoshihide Takahashi, Odawara, JP;
Takashi Tanabe, Nakai, JP;
Takao Gotou, Kawasaki, JP;
Masato Isogai, Mito, JP;
Toshikatsu Miyata, Suita, JP;
Akihiko Kanouda, Hitachinaka, JP;
Minehiro Nemoto, Hitachi, JP;
Fumikazu Takahashi, Hitachi, JP;
Masahiro Hamaogi, Odawara, JP;
Yoshihide Takahashi, Odawara, JP;
Takashi Tanabe, Nakai, JP;
Takao Gotou, Kawasaki, JP;
Masato Isogai, Mito, JP;
Toshikatsu Miyata, Suita, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Maxwell Ltd., Osaka, JP;
Hitachi Computer Peripherals Co., Kanagawa-ken, JP;
Abstract
A DC backup power supply system having a battery a charge-discharge circuit for charging and discharging a power between the battery and a DC line and a control circuit for controlling the charge-discharge circuit, wherein the battery has a number of battery cells and cylindrical portions of the battery cells are laid on an approximately horizontal plane.