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:
Aug. 15, 2017
Filed:
Feb. 28, 2012
Masatoshi Toduka, Tokyo, JP;
Masanori Sakai, Tokyo, JP;
Shinsuke Kobayashi, Tokyo, JP;
Koji Kogure, Tokyo, JP;
Satoshi Minoura, Tokyo, JP;
Toshio Shibahara, Tokyo, JP;
Masatoshi Toduka, Tokyo, JP;
Masanori Sakai, Tokyo, JP;
Shinsuke Kobayashi, Tokyo, JP;
Koji Kogure, Tokyo, JP;
Satoshi Minoura, Tokyo, JP;
Toshio Shibahara, Tokyo, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
On each negative plate (), a non-woven fabric () composed of fibers of at least one material selected from a group of materials comprising glass, pulp and polyolefins comes into contact with the entire surface of the plate without being integrated with the plate. Each negative plate (), which is in contact with the non-woven fabric (), is contained in an envelope separator () comprising a microporous synthetic resin sheet, and is laminated with a positive plate (). The non-woven fabric is manufactured through papermaking process in which glass fibers, pulp and silica powder are preferably used and dispersed in water as the main components.