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:
Aug. 28, 2001
Filed:
Jun. 01, 2000
Applicant:
Inventors:
Yuko Yako, Takatsuki, JP;
Naoki Takeyama, Settu, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/039 ;
U.S. Cl.
CPC ...
G03F 7/039 ;
Abstract
A positive working photoresist composition is provided which comprises a resin which is converted to alkali-soluble from alkali-insoluble or alkali slightly soluble by the action of an acid; an acid generator; and a nitrogen-containing cyclic compound represented by the following formula (I):
Yako, Yuko. (2001). Positive working photoresist compositions comprising a nitrogen-containing cyclic compound (U.S. Patent No. 6280902). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6280902
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile