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. 16, 2013
Filed:
May. 07, 2009
Tadahiro Ohmi, Sendai, JP;
Yasuyuki Shirai, Sendai, JP;
Koji Sato, Gojo, JP;
Masayuki Noguchi, Tokyo, JP;
Tsutomu Yoshida, Tokyo, JP;
Akira Muramatsu, Machida, JP;
Satoshi Kumaki, Gojo, JP;
Yuki Kuwamura, Gojo, JP;
Tadahiro Ohmi, Sendai, JP;
Yasuyuki Shirai, Sendai, JP;
Koji Sato, Gojo, JP;
Masayuki Noguchi, Tokyo, JP;
Tsutomu Yoshida, Tokyo, JP;
Akira Muramatsu, Machida, JP;
Satoshi Kumaki, Gojo, JP;
Yuki Kuwamura, Gojo, JP;
Tohoku University, Sendai-Shi, JP;
Nippon Valqua Industries, Ltd., Tokyo, JP;
Abstract
A metal gasket includes an outer ring that is formed in a substantially C-shaped cross-section having an opening in a circumferential direction and an inner ring that is disposed inside the outer ring, wherein the inner ring is configured in a polygonal shape of a cross section, and a pair of corner portions opposing to each other in the inner ring are disposed on inner circumferential faces on the both sides of the opening in the outer ring.