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:
Jan. 18, 1994
Filed:
Jul. 27, 1992
Kouichi Watanabe, Nagaokakyo, JP;
Kunio Nishida, Nagaokakyo, JP;
Tatsuo Kunishi, Nagaokakyo, JP;
Masanori Endo, Nagaokakyo, JP;
Shunjiro Imagawa, Nagaokakyo, JP;
Abstract
A method of fabricating a flat type electrochemical device, which is constructed by placing in a case comprising first and second case half bodies a separator and first and second functional substances for an electrochemical device so arranged as to interpose the separator. Peripheral portions of the first and second case half bodies are overlapped with each other, the peripheral portions are welded by a welding process during the application of pressure whereby the peripheral portions are joined with substantially no gaps. The portions welded by the welding process with pressure are then further welded using a laser beam welding.