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. 16, 2002
Filed:
Oct. 28, 1998
Applicant:
Inventors:
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F 7/32 ;
U.S. Cl.
CPC ...
G03F 7/32 ;
Abstract
A resist developer comprising (1) a basic organic compound A and (2) a salt C of (a) a basic compound A′ and (b) an organic compound B capable of forming a salt together with said basic compound A′, wherein said basic compound A′ is the same or different from said basic organic compound A, and wherein said resist developer is prepared by combining (1) and (2), or by reacting an excess amount of said basic organic compound A with said organic compound B.