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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 9882148 B1

PDFFull Text
Date of Patent:
Jan. 30, 2018

Filed:

Jun. 22, 2015

Organic compound, field element, organic light-emitting element, display apparatus, image information-processing apparatus, lighting apparatus, image-forming apparatus, and exposure apparatus

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Jun Kamatani, Tokyo, JP;

Tetsuya Kosuge, Yokohama, JP;

Masumi Itabashi, Yamato, JP;

Yosuke Nishide, Kawasaki, JP;

Hirokazu Miyashita, Tokyo, JP;

Naoki Yamada, Inagi, JP;

Tetsuo Takahashi, Kawasaki, JP;

Satoru Shiobara, Funabashi, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Canon U.S.A. Inc., IP Division

Primary Examiner:

Golam M M Shameem

Int. Cl.
CPC ...
C07D 235/20 (2006.01); H01L 51/00 (2006.01); H01L 27/32 (2006.01); H01L 29/786 (2006.01); H01L 29/24 (2006.01); F21V 29/70 (2015.01); H05B 33/08 (2006.01); G09G 3/3208 (2016.01); G03G 15/04 (2006.01); H01L 51/50 (2006.01); F21Y 115/15 (2016.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 235/20 (2013.01); F21V 29/70 (2015.01); G03G 15/04054 (2013.01); G09G 3/3208 (2013.01); H01L 27/322 (2013.01); H01L 27/3244 (2013.01); H01L 29/24 (2013.01); H01L 29/7869 (2013.01); H05B 33/0896 (2013.01); F21Y 2115/15 (2016.08); G03G 2215/0409 (2013.01); H01L 51/504 (2013.01); H01L 51/5092 (2013.01);
Abstract

A bibenzo[d]imidazolidene compound inert to oxygen is provided. A 1,1',3,3′-tetraphenyl-2,2′-bibenzo[d]imidazolidene compound is represented by general formula (1). In formula (1), Rto Rare each independently selected from a hydrogen atom and a substituent. The substituent is any of a halogen atom, an alkyl group containing 1 or more and 8 or less carbon atoms, and a substituted or unsubstituted aryl group. At least one of Rto Ris the substituent.

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