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:
Jul. 21, 2009
Filed:
Jun. 29, 2005
Hisaharu Nishio, Aichi, JP;
Yuichi Yamada, Aichi, JP;
Masahiro Asai, Aichi, JP;
Makoto Hishiki, Aichi, JP;
Hisaharu Nishio, Aichi, JP;
Yuichi Yamada, Aichi, JP;
Masahiro Asai, Aichi, JP;
Makoto Hishiki, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A water-repellent filter member formed from a resin sheet of a porous, fibrous structure having air permeability and water repellency; a waterproof instrument and gas sensor having air permeability; and a method of manufacturing the same. A water-repellent filter member () is formed from a resin sheet () of a porous, fibrous structure having air permeability and water repellency by subjecting the resin sheet to forming work, and includes an axially extending tubular side wall portion () and a bottom wall portion closing one end of the tubular side wall portion. At least a portion of the bottom wall portion () retains the porous, fibrous structure of the resin sheet and thereby has air permeability.