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.:

US 7951960 B1

PDF
Full Text
Expired
Date of Patent:
May. 31, 2011

Filed:

Sep. 30, 2008
Applicants:

Shinji Hasegawa, Kanagawa, JP;

Minquan Tian, Kanagawa, JP;

Yuka Ito, Kanagawa, JP;

Kazuhiko Hirokawa, Kanagawa, JP;

Miho Watanabe, Kanagawa, JP;

Makoto Furuki, Kanagawa, JP;

Inventors:

Shinji Hasegawa, Kanagawa, JP;

Minquan Tian, Kanagawa, JP;

Yuka Ito, Kanagawa, JP;

Kazuhiko Hirokawa, Kanagawa, JP;

Miho Watanabe, Kanagawa, JP;

Makoto Furuki, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 207/325 (2006.01); G03G 9/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

The black color material includes a condensation product of a pyrrole compound represented by the following formula (1) and a squaric acid represented by the following formula (2):


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