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:
Apr. 10, 2001
Filed:
Jun. 23, 1998
Applicant:
Inventors:
Hiroyuki Mori, Aichi-ken, JP;
Hideo Tachikawa, Aichi-ken, JP;
Assignee:
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-gun, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 9/00 ; B32B 1/500 ; C23C 8/20 ; C23C 1/400 ;
U.S. Cl.
CPC ...
B32B 9/00 ; B32B 1/500 ; C23C 8/20 ; C23C 1/400 ;
Abstract
This invention provides a covered member which possesses a high bond strength of a base material and a covering film, and has a smooth surface. The covered member comprises a base material and a covering film and the surface of the base material to be covered with the covering film is characterized by an uneven surface having projections with an average height in the range from 10 to 100 nm and an average width of not more than 300 nm. The uneven surface can be formed by ion impacting. A surface of a covering film formed on that is smooth since the unevenness of the surface is extremely fine.