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:
Jul. 04, 1995
Filed:
Sep. 28, 1993
Yasunori Tanimoto, Kanagawa, JP;
Makoto Futatsugi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An object is to provide a semiconductor laser device having a continuous distribution in reflection and transmission at the end surface thereof, and a method therefor. In the semiconductor laser device having at the end surface thereof an end surface protection film for preventing oxidation of the end surface and an optical thin film for controlling reflectance, the end surface protection film has continuously-varying film thickness and the optical thin film has constant film thickness. By designing the end surface in a mirror-surface form and varying reflectance, characteristics such as high output, low power consumption, etc. can be improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile