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:
May. 19, 1992
Filed:
May. 29, 1990
Applicant:
Inventors:
Masami Ikarashi, Furukawa, JP;
Kenichi Mitsumori, Furukawa, JP;
Mitsuru Kano, Furukawa, JP;
Yasuhiro Miki, Furukawa, JP;
Takemi Akimoto, Furukawa, JP;
Masahiko Yamaguchi, Furukawa, JP;
Yorihiko Sasaki, Toda, JP;
Tomoo Kamigaki, Furukawa, JP;
Jun Nakanowatari, Toda, JP;
Yoshinori Kato, Furukawa, JP;
Hitoshi Seki, Sendai, JP;
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; H05B / ;
U.S. Cl.
CPC ...
359 50 ; 359 98 ; 313506 ;
Abstract
A electroluminescence device has a light emitting layer composed of a fluorescent powder and a liquid crystal between a transparent substrate formed with a transparent electrode and an insulating substrate formed with an opposed electrode.