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.

Date of Patent:
May. 18, 2010

Filed:

Mar. 10, 2006
Applicants:

Masaomi Sasaki, Susono, JP;

Toshiya Sagisaka, Yokohama, JP;

Masafumi Torii, Yokohama, JP;

Takashi Okada, Yokohama, JP;

Shinichi Kawamura, Kawasaki, JP;

Inventors:

Masaomi Sasaki, Susono, JP;

Toshiya Sagisaka, Yokohama, JP;

Masafumi Torii, Yokohama, JP;

Takashi Okada, Yokohama, JP;

Shinichi Kawamura, Kawasaki, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/06 (2006.01); C08G 75/00 (2006.01); C08G 73/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a π-conjugated polymer containing a repeating unit expressed by the following General Formula (I): where, in the General Formula (I), Y and Ar represent one of a substituted or unsubstituted aromatic hydrocarbon and a substituted or unsubstituted divalent group of aromatic heterocyclic ring, Yrepresents one of a substituted or unsubstituted unsaturated aliphatic hydrocarbon, a substituted or unsubstituted aromatic hydrocarbon and a substituted or unsubstituted divalent group of aromatic heterocyclic ring and R represents one of a hydrogen atom, a substituted or unsubstituted alkyl group and a substituted or unsubstituted aromatic hydrocarbon group.


Find Patent Forward Citations

Loading…