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:
Jun. 27, 1989
Filed:
Sep. 25, 1987
Applicant:
Inventors:
Hisashi Urushiwara, Toride, JP;
Tugiyasu Iwamaru, Settsu, JP;
Kenya Kazehara, Ako, JP;
Osamu Watanabe, Toyonaka, JP;
Kenichi Sawada, Osaka, JP;
Kiyoshi Sato, Ibaraki, JP;
Hirokazu Yoshikawa, Ibaraki, JP;
Shigeru Ikenari, Suita, JP;
Kenichi Yokoyama, Takatsuki, JP;
Yoshio Uetani, Ibaraki, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; B65D / ;
U.S. Cl.
CPC ...
429 56 ; 220207 ; 220367 ;
Abstract
In a non-aqueous electrochemical battery, there are formed a plurality of grooves with thinned bottom portion on the bottom of the battery container. The grooves are intersected at least at one point and the bottom of the grooves are made flat so that the explosion-proof arrangement is operable for a desired inner pressure of the battery.