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:
Oct. 23, 2012
Filed:
May. 15, 2008
Takayuki Horiuchi, Tokyo, JP;
Naoki Yamada, Inagi, JP;
Satoshi Igawa, Fujisawa, JP;
Masashi Hashimoto, Tokyo, JP;
Minako Nakasu, Tokyo, JP;
Jun Kamatani, Tokyo, JP;
Shinjiro Okada, Kamakura, JP;
Takayuki Horiuchi, Tokyo, JP;
Naoki Yamada, Inagi, JP;
Satoshi Igawa, Fujisawa, JP;
Masashi Hashimoto, Tokyo, JP;
Minako Nakasu, Tokyo, JP;
Jun Kamatani, Tokyo, JP;
Shinjiro Okada, Kamakura, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a benzo[a]fluoranthene compound represented by the formula (I): wherein: at least one Rto Rrepresents Rrepresented by the formula (i):R=—Ar—X  (i)wherein: Arrepresents any one of the following groups (i-a) to (i-c): (i-a) a substituted or unsubstituted phenylene group, (i-b) a substituted or unsubstituted monocyclic heterocyclic group, and (i-c) a composite substituent formed of two substituents selected from substituents corresponding to the groups (i-a) and (i-b); and Xrepresents a substituted or unsubstituted alkyl group having 2 or more carbon atoms, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group; and Rto Rnone of which is represented by Reach represent a hydrogen atom, a halogen atom or the like, and Rto Rnone of which is represented by Rmay be identical to or different from each other.