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:
Sep. 18, 2012
Filed:
Apr. 19, 2010
Yoshiyuki Utsumi, Kawasaki, JP;
Jun Iwashita, Kawasaki, JP;
Yoshiyuki Utsumi, Kawasaki, JP;
Jun Iwashita, Kawasaki, JP;
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-shi, JP;
Abstract
A positive resist composition including a base component (A) which exhibits increased solubility in an alkali developing solution under the action of acid and an acid generator component (B) which generates acid upon exposure, wherein the base component (A) includes a polymeric compound (A1) having a structural unit (a0) containing an acid-dissociable, dissolution-inhibiting group, and the acid-dissociable, dissolution-inhibiting group has a 1,3-dioxole skeleton.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile