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:
Mar. 07, 1995
Filed:
Nov. 29, 1993
Applicant:
Inventors:
Yasunori Uetani, Osaka, JP;
Haruyoshi Osaki, Osaka, JP;
Naoki Takeyama, Osaka, JP;
Yuji Ueda, Osaka, JP;
Hiromi Ueki, Osaka, JP;
Takehiro Kusumoto, Hyogo, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F / ; G03F / ;
U.S. Cl.
CPC ...
430192 ; 430165 ; 430193 ; 528153 ; 528155 ;
Abstract
A novolak resin made from a carbonyl compound and a specific phenol compound, which resin has good properties, in particular, as a base resin of a photoresist.
Uetani, Yasunori. (1995). Positive resist composition containing a novolak resin made from an (U.S. Patent No. 5395727). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5395727
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile