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. 09, 2005
Filed:
Dec. 18, 2002
Tomoyuki Suzuki, Tsukuba, JP;
Shuji Doi, Tsukuba, JP;
Takanobu Noguchi, Tsukuba, JP;
Akihiko Okada, Tsukuba, JP;
Tomoyuki Suzuki, Tsukuba, JP;
Shuji Doi, Tsukuba, JP;
Takanobu Noguchi, Tsukuba, JP;
Akihiko Okada, Tsukuba, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A copolymer has a polystyrene reduced number average molecular weight of 10-10, and includes repeating units represented by formulas (1), (2), and (3), —Ar—  (3)The copolymer has an excellent solubility in an organic solvent, and a high glass transition temperature in good valance. Further, a polymer LED has high performance, such as low-voltage driving and high luminance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile