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:
Oct. 10, 1995
Filed:
May. 06, 1994
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D / ; G11B / ;
U.S. Cl.
CPC ...
51295 ; 360128 ;
Abstract
An abrasive tape for polishing a magnetic head includes a substrate and an abrasive layer which is formed on the substrate. The abrasive layer is composed of abrasive grains and a binder having an acidic functional group. The abrasive layer contains basic carbon black having a pH within the range of 7 to 10 and a mean grain size of 0.01 to 0.1 .mu.m.