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. 13, 1990
Filed:
Apr. 11, 1989
Applicant:
Inventors:
Satoshi Yamaue, Nara-shi, Nara-ken, JP;
Koichi Tanaka, Nara-shi, Nara-ken, JP;
Hiroaki Nakaya, Tenri-shi, Nara-ken, JP;
Takuo Yamashita, Tenri-shi, Nara-ken, JP;
Masaru Yoshida, Ikoma-gun, Nara-ken, JP;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G08B / ; B60Q / ;
U.S. Cl.
CPC ...
340525 ; 340461 ; 340781 ; 313503 ; 313506 ; 428690 ; 428917 ;
Abstract
A light-emitting alarm board uses thin-film EL elements which emit light of different colors individually or simultaneously, depending on the voltages applied thereon, thereby serving as display lamps for indicating the conditions of operation of a system being monitored.