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:
Oct. 23, 2001
Filed:
Oct. 24, 1997
Applicant:
Inventors:
Asao Saitoh, Tokorozawa, JP;
Yuichi Kato, Higashiyamato, JP;
Shizuo Yamaguchi, Sayama, JP;
Yoshikazu Koganei, Higashikurume, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/10 ;
U.S. Cl.
CPC ...
H01M 2/10 ;
Abstract
A card body,has two battery holding sections (,) inside, and two battery holders (,) each containing a battery are housed therein. The two housed battery holders (,) engage locking portions (,) of a stopper (,), thereby setting them unremovable. When the stopper (,) is slid toward one battery holding section (,), the battery holder (,) therein is still kept unremovable, while the other battery holder (,) can be made removable. Thus, even during battery change, at least one battery always remains in the card body to keep supplying a backup voltage to a volatile memory.