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:
Feb. 16, 2010
Filed:
Oct. 01, 2004
Satoshi Kobayashi, Tsukuba, JP;
Takanobu Noguchi, Tsukuba, JP;
Yoshiaki Tsubata, Tsukuba, JP;
Makoto Kitano, Tsukuba, JP;
Shuji Doi, Tsukuba, JP;
Takahiro Ueoka, Tsukuba, JP;
Akiko Nakazono, Tsukuba, JP;
Satoshi Kobayashi, Tsukuba, JP;
Takanobu Noguchi, Tsukuba, JP;
Yoshiaki Tsubata, Tsukuba, JP;
Makoto Kitano, Tsukuba, JP;
Shuji Doi, Tsukuba, JP;
Takahiro Ueoka, Tsukuba, JP;
Akiko Nakazono, Tsukuba, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
Provided is a polymer comprising a repeating unit represented by formula (1), wherein, Arepresents a divalent group in which the bond distance ratio (bond distance of C(α)-A/bond distance of C(α)-C(β)) is 1.10 or more; R, R, R, R, R, and R, each independently represent a hydrogen atom, alkyl group, alkyloxy group, aryloxy group, arylalkyloxy group, etc. The polymer is useful as a light-emitting material, a charge transporting material, etc.