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. 13, 1998
Filed:
Oct. 25, 1996
Applicant:
Inventors:
Hiromitsu Tomiyama, Ibaraki, JP;
Masahiko Oshino, Ibaraki, JP;
Ikuko Ihara, Ibaraki, JP;
Naoko Nakanishi, Ibaraki, JP;
Mutsumi Suzuki, Kanagawa, JP;
Masao Fukuyama, Kanagawa, JP;
Mutsuaki Murakami, Tokyo, JP;
Taro Nambu, Tokyo, JP;
Assignees:
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
428457 ; 257 40 ; 257103 ; 313498 ; 313504 ; 313506 ; 313509 ; 4284111 ; 428461 ; 428515 ; 428917 ; 430 59 ; 430 72 ; 430 76 ; 552110 ; 564 50 ; 564309 ;
Abstract
The present invention provides novel amine compounds useful as electron-transporting materials to be incorporated in organic electro-luminescence devices. More particularly, the present invention provides an organic electro-luminescence device (organic EL device) which can find wide application in various display units, requires a low applied voltage and exhibits a high luminance and an excellent stability.