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:
Mar. 19, 2002
Filed:
Aug. 30, 2000
Fusao Yamanaka, Kaisei-machi, JP;
Fuji Photo Film Co., Ltd., Kanagawa-Ken, JP;
Abstract
In a semiconductor laser element including a multilayered structure being formed of a plurality of semiconductor layers made of a plurality of group III-V compounds, and having at least a pair of cleaved end surfaces as a pair of light resonator surfaces, a first reflectance control layer, made of an oxygen gettering material which has a function of gettering oxygen, is formed on at least one of the pair of light resonator surfaces, and a second reflectance control layer made of a nitride of a group III material is formed on the first reflectance control layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile