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:
Jan. 19, 1999
Filed:
Jun. 28, 1995
Applicant:
Inventors:
Yasuo Imanishi, Hitachi, JP;
Shingo Ishihara, Hitachi, JP;
Tomoyuki Hamada, Hitachi, JP;
Atsushi Kakuta, Hitachiota, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
385122 ; 359241 ; 359326 ; 365 64 ; 365106 ; 385 24 ;
Abstract
An optical memory device having at least two nonlinear optical media connected together by at least two light paths. This optical memory device can make high-speed light pulse signal processing which cannot be realized by the conventional electric switch.