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:
May. 12, 1987
Filed:
Nov. 08, 1985
Applicant:
Inventors:
Mitsuhiko Nakagawa, Itami, JP;
Fumiaki Nitto, Itami, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
523152 ; 523153 ; 523155 ; 523156 ; 523157 ; 523158 ;
Abstract
A friction material having particular use in brake pads for motor vehicles. The material includes iron powder as its chief constituent. In addition, the material contains phosphorous (P) of 0.02% or more of sulfur (S) of 0.02% or more or combined P and S of 0.03% or more.