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. 02, 2007
Filed:
May. 08, 2003
Applicants:
Takashi Yamaguchi, Tokyo, JP;
Ryoji Hayashi, Tokyo, JP;
Inventors:
Takashi Yamaguchi, Tokyo, JP;
Ryoji Hayashi, Tokyo, JP;
Assignee:
Konami Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 5/02 (2006.01); G02B 5/13 (2006.01); G02B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light receiving deviceincludes a sensorfor outputting a signal correlating to incident light on a detection surfaceand a light receiving elementdisposed in confrontation with the detection surface and capable of transmitting light. The light receiving element has a recessed portionon the opposite surface of the surface confronting the detection surface. A wall surfaceof the recessed portion reflects the light beam Lfrom a lateral direction of the detection surface toward the detection surface