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:
Dec. 20, 1988
Filed:
Sep. 23, 1986
Nobuyuki Miyauchi, Tenri, JP;
Hiroshi Hayashi, Kyoto, JP;
Osamu Yamamoto, Nara, JP;
Saburo Yamamoto, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A semiconductor laser device comprising: a ring-shaped resonator constituted by a square-shaped optical waveguide composed of four straight optical waveguide sides in which facing sides are positioned in a parallel manner and a reflecting mirror is formed at each of the four corners of said square-shaped optical waveguide in a manner to divide the intersection angle of two each of said four sides at each of said four corners into two equal parts, and a means, for releasing laser light from said ring-shaped resonator, which is disposed on or near a part or the whole area of at least one of said four sides of said square-shaped optical waveguide.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile