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:
Jan. 26, 2016
Filed:
Sep. 29, 2014
Nichia Corporation, Anan-shi, JP;
Atsushi Tanaka, Tokushima, JP;
Mitsuhiro Nonaka, Tokushima, JP;
NICHIA CORPORATION, Anan-Shi, JP;
Abstract
A semiconductor laser element includes a substrate; a semiconductor layer formed on a front surface of the substrate; a first electrode formed on a back surface of the substrate; a second electrode formed on a front surface of the semiconductor layer; and at least one mark configured to allow reading of predetermined information, the at least one mark being formed in at least one of (i) a position on the surface on which the first electrode is formed, spaced apart from the first electrode and (ii) a position on the surface on which the second electrode is formed, spaced apart from the second electrode. The at least one mark is made of a metal material and has a thickness smaller than a thickness of the electrode that is formed on the surface on which the at least one mark is formed.