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:
Nov. 08, 2005
Filed:
Jul. 17, 2001
Toshihiro Ise, Kanagawa, JP;
Tatsuya Igarashi, Kanagawa, JP;
Yousuke Miyashita, Kanagawa, JP;
Hidetoshi Fujimura, Kanagawa, JP;
Masayuki Mishima, Kanagawa, JP;
Hisashi Okada, Kanagawa, JP;
Qiu Xuepeng, Kanagawa, JP;
Toshihiro Ise, Kanagawa, JP;
Tatsuya Igarashi, Kanagawa, JP;
Yousuke Miyashita, Kanagawa, JP;
Hidetoshi Fujimura, Kanagawa, JP;
Masayuki Mishima, Kanagawa, JP;
Hisashi Okada, Kanagawa, JP;
Qiu Xuepeng, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.