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:
Apr. 15, 2008
Filed:
Feb. 21, 2007
Noriyuki Yoshikawa, Osaka, JP;
Masanori Minamio, Osaka, JP;
Hisanori Ishiguro, Shiga, JP;
Hideyuki Nakanishi, Shiga, JP;
Hiroyuki Ishida, Osaka, JP;
Yoshihiro Tomita, Osaka, JP;
Toshiyuki Fukuda, Kyoto, JP;
Noriyuki Yoshikawa, Osaka, JP;
Masanori Minamio, Osaka, JP;
Hisanori Ishiguro, Shiga, JP;
Hideyuki Nakanishi, Shiga, JP;
Hiroyuki Ishida, Osaka, JP;
Yoshihiro Tomita, Osaka, JP;
Toshiyuki Fukuda, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An optical semiconductor device includes a semiconductor laser chip, a base for mounting the semiconductor laser chip and a solder layer sandwiched between the top surface of the base and the bottom surface of the semiconductor laser chip. The semiconductor laser chip is warped in upward convex shape.