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:
Jun. 26, 2007
Filed:
May. 07, 2003
Applicant:
Tamaki Nakano, Nara, JP;
Inventor:
Tamaki Nakano, Nara, JP;
Assignee:
Japan Science and Technology Corporation, Saitama, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polyester expressed by the following structural formula 1, and a charge transport material obtained by adding an electron acceptor compound or an electron donor compound to this polyester. In the aforesaid structural formula, Ar is an aromatic group and this aromatic group may contain a heterocyclic ring. Ris a carbon atom or absent (direct bond), R–Rare hydrogen atoms, electron donor groups or electron attracting groups, R, Rare hydrogen atoms or organic groups, X is a hetero atom, hetero atom-containing group, organic group or absent (direct bond), and m is an integer equal to 2 or more.