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. 08, 1994
Filed:
Jan. 22, 1993
Applicant:
Inventors:
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257-3 ; 257 52 ; 257 59 ; 257 96 ; 257103 ;
Abstract
A carrier injection type light emitting element with employment of a pn junction established between porous silicon and a semiconductor having a conductivity type different from that of the porous silicon, and also optical devices such as an opto-optical converting element, a light transmitting element, a photocoupling circuit element, a photocoupling element and a display apparatus, which comprise such a carrier injection type light emitting element and a semiconductor light receiving element.