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:
Mar. 09, 2010
Filed:
Oct. 28, 2004
Masanori Ando, Ikeda, JP;
Akio Yamanaka, Sapporo, JP;
Yutaka Kawabe, Chitose, JP;
Eiichi Hanamura, Chitose, JP;
Masanori Ando, Ikeda, JP;
Akio Yamanaka, Sapporo, JP;
Yutaka Kawabe, Chitose, JP;
Eiichi Hanamura, Chitose, JP;
Japan Science and Technology Agency, Kawaguchi-Shi, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
The present invention provides electroluminescent materials that emit very bright light with little energy consumption, little loss of energy converted into heat, etc., and suffers from little deterioration due to long-term use, in particular, inorganic electroluminescent materials that emit blue to green light having a wavelength shorter than yellow. Specifically, the present invention relates to the following three types of electroluminescent material: