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:
Oct. 01, 1991
Filed:
Mar. 28, 1990
Applicant:
Inventor:
Shinji Hirata, Toyonaka, JP;
Assignee:
West Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354416 ; 3541451 ;
Abstract
An electric flash apparatus of the present invention is actuated to emit light by application of a trigger signal issues by a trigger circuit (5) after a power transistor (4), such as, an I.G.B.T. (insulated gate bipolar transistor) connected in series with a flash tube (3), is certainly turned to sufficient ON state.
Hirata, Shinji. (1991). Electric flash apparatus (U.S. Patent No. 5053802). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5053802
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