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:
May. 16, 2000
Filed:
Feb. 25, 1999
Hironori Ito, Tokyo, JP;
Shigeru Sekine, Tokyo, JP;
Masahiko Kasashima, Tokyo, JP;
Hisao Tsukazawa, Tokyo, JP;
Yuichiro Hino, Tokyo, JP;
Shizuo Morioka, Hanno, JP;
Nobuyuki Hosoya, Tokyo, JP;
Yoshiaki Ukiya, Tokyo, JP;
Katsuo Ozawa, Tokyo, JP;
Hirohito Motomiya, Kawagoe, JP;
Masaru Harashima, Tokyo, JP;
Masahiko Hagiwara, Tokyo, JP;
Masanori Morita, Sayama, JP;
Akihiko Uchida, Tokyo, JP;
Naoki Tashiro, Tokyo, JP;
Masayasu Tanaka, Tokyo, JP;
Keiichi Mitsui, Tokyo, JP;
Naoki Isooka, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A battery charge circuit using a constant voltage/constant current to power charge a plurality of battery packs, a current detection circuit to detect a charge current according to a predetermined value, and control mechanisms to maintain a constant voltage charge mode when the charge current value drops below a set value within the battery pack.