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:
Jan. 18, 2005
Filed:
Feb. 04, 2002
Yasuhiro Shimada, Minami-ashigara, JP;
Hideki Maeta, Minami-ashigara, JP;
Yoshio Shimura, Minami-ashigara, JP;
Yasuhiro Shimada, Minami-ashigara, JP;
Hideki Maeta, Minami-ashigara, JP;
Yoshio Shimura, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Abstract
There is disclosed a 1H-pyrrole-[1,2-b][1,2,4]triazole compound represented by formula (I):wherein R is an alkyl group; R, R, R, R', R′, and R′ each are a hydrogen atom or an alkyl group; Rand R, and R′ and R′ may bond together to form a ring, respectively; Ris a hydrogen atom or an alkyl group, and X is heterocyclic group, a substituted amino group, or an aryl group. The compound is useful as a photographic cyan coupler. There is also disclosed synthetic intermediates of the compound and a production method of the intermediates.