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:
Nov. 19, 1996
Filed:
Oct. 06, 1995
Applicant:
Inventors:
Hitoshi Kodama, Aichi-ken, JP;
Shoji Iwasa, Aichi-ken, JP;
Assignee:
Fujimi Incorporated, Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
106-3 ; 1566361 ; 252 791 ;
Abstract
A novel polishing composition composed of water, sol or gel of silica as a polishing agent, and a polishing accelerator has been obtained. The accelerator could be a persulfate compound, a persulfate compound combined with hydrogen peroxide, or a hydrazine compound. Another polishing composition composed of water, other polishing agent than silica and a hydrazine compound as a polishing accelerator has also been obtained.