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:
Jan. 19, 1999
Filed:
Sep. 22, 1992
Applicant:
Inventors:
Haruyoshi Osaki, Toyonaka, JP;
Fumio Oi, Ashiya, JP;
Yasunori Uetani, Minoo, JP;
Makoto Hanabata, Hyogo-ken, JP;
Takeshi Hioki, Tondabayashi, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
430191 ; 430165 ; 430192 ; 430193 ;
Abstract
A positive resist composition which comprises a 1,2-quinone diazide compound and an alkali-soluble resin containing a polyphenol compound (I) of the general formula: