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. 08, 2003
Filed:
Dec. 29, 1995
Applicant:
Inventors:
Shigeki Umezawa, Shizuoka, JP;
Keisuke Torii, Shizuoka, JP;
Assignee:
NSK - Warner Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/704 ;
U.S. Cl.
CPC ...
B32B 2/704 ;
Abstract
In a wet friction material and a method therefor of the present invention, an excessive binder coating on the outermost surface layer of the friction material is removed or prevented while at least one of impregnation, drying and setting of a binder, and further the surface of the friction material is smoothed by means of heating, pressurizing and molding.