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:
Jul. 11, 1989
Filed:
Aug. 19, 1987
Applicant:
Inventors:
Hiroshi Iwata, Ikoma, JP;
Shinji Hirata, Toyonaka, JP;
Assignee:
West Electric Company, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
3152 / ; 315151 ;
Abstract
Electronic flash equipment in the present including a Field Effect Transistor which is connected to a flash tube in series and a voltage control structure which controls the conductivity of the Field Effect Transistor by control of a voltage across the gate and the source of the Field Effect Transistor. A automatic light control and a high frequency repeating flash light radiation are realized by control of the voltage.