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. 10, 2010
Filed:
Feb. 25, 2005
Applicants:
Hiroshi Saito, Nara, JP;
Kenichiro Ishikawa, Nara, JP;
Inventors:
Hiroshi Saito, Nara, JP;
Kenichiro Ishikawa, Nara, JP;
Assignee:
Nichias Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/26 (2006.01); B32B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gasket material contains a steel plate and a foamed rubber layer disposed on both sides or one side of the steel plate. The foamed rubber layer is provided by a process including foaming a pre-foamed layer containing a pre-foamed composition. The pre-foamed layer has a thickness of 15 to 50 .mu.m, and the pre-foamed composition has a foaming factor of 2 to 4.