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. 09, 2002
Filed:
Apr. 19, 1999
Applicant:
Inventors:
Yasufumi Aihara, Sunneyvale, CA (US);
Keiichiro Watanabe, Kasugai, JP;
Shinji Kawasaki, Nagoya, JP;
Akira Narukawa, Yokkaichi, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 9/00 ; B32B 7/04 ;
U.S. Cl.
CPC ...
B32B 9/00 ; B32B 7/04 ;
Abstract
An anti-corrosion ceramic member having a substrate made of a ceramic material, a surface layer made of a fluoride and formed on the substrate, and an intermediate layer formed between the substrate and the surface layer and having the ceramic material of the substrate and the fluoride.