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:
Sep. 03, 2013
Filed:
Jul. 07, 2009
Applicants:
Takeshi Fujisaki, Amagasaki, JP;
Hiromitsu Okuno, Osaka, JP;
Inventors:
Takeshi Fujisaki, Amagasaki, JP;
Hiromitsu Okuno, Osaka, JP;
Assignee:
SANYO Electric Co., Ltd., Moriguchi-Shi, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01); G03B 21/14 (2006.01); G03B 21/20 (2006.01); G03B 21/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A projection image display apparatus including a detachably attachable light source unit includes: a storage means provided to the light source unit and having previously stored therein information that the light source unit is a genuine product; a determination means making a comparison with the information in the storage means to determine whether the light source unit is the genuine product; and a light source control means controlling an output of the light source unit in accordance with a result from the determination means.