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:
Aug. 26, 1997
Filed:
Oct. 12, 1995
Applicant:
Inventors:
Masato Mushiage, Kyoto, JP;
Naotaro Nakata, Kyoto, JP;
Yuta Tezen, Kyoto, JP;
Kenji Okada, Yokohama, JP;
Assignees:
Rohm Co., Ltd., Kyoto, JP;
Nippon Telegraph & Telephone Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359163 ; 359159 ; 372 50 ; 372 92 ;
Abstract
An optical communication unit includes a light emitting element for emitting a transmission signal light; a condenser lens for coupling the transmission signal light from the light emitting element to an optical transmission path; and a light receiving element for receiving a receiving signal light from the optical transmission path. A light emitting surface in the light emitting element is formed by a plane tilted to a perpendicular plane in a substrate surface of a chip in the light emitting element.