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. 20, 2001
Filed:
Dec. 29, 1998
Naotada Okada, Yokohama, JP;
Masahiro Kato, Yokohama, JP;
Katsuhisa Homma, Yokosuka, JP;
Kitio Akiyama, Fujioka, JP;
Ryuichi Togawa, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An outer case has an opening portion and a power generation element is held in the outer case and has a positive electrode and negative electrode with a separator interposed. A cover member is joined to the opening portion and the cover member is welded to the outer case with a laser beam. An injection port is formed in the cover member. After an electrolyte has been injected via the injection port into the outer case, a sealing member is pressed in a hermetical way into the injection port and then blocked by a sealing cover welded to the cover member using the laser beam. Furthermore, a pressing member is provided between the power generation element and the inner surface of the cover member wherein one end of the pressing member is receded a predetermined dimension from the injection port.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile