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:
Feb. 10, 1998
Filed:
Jan. 30, 1997
Applicant:
Inventor:
Yoshihiko Mizushima, Hamamatsu, JP;
Assignee:
Hamamatsu Photonics K.K., Hamamatsu, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G01J / ; H01J / ;
U.S. Cl.
CPC ...
365112 ; 365115 ; 365175 ; 250205 ; 2502 / ;
Abstract
The optical memory device of the present invention comprises a photodetector device which generates a current when light is incident thereon and a light-emitting device which is connected to the photodetector device in series so as to emit light upon receiving a supply of current from the photodetector device and feed back thus emitted light toward the photodetector device.