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. 05, 2005
Filed:
Apr. 10, 2002
Tohru Watanabe, Yamanashi, JP;
Toshio Higashi, Yamanashi, JP;
Manabu Komiyama, Kawasaki, JP;
Takashi Yamane, Matsudo, JP;
Tohru Watanabe, Yamanashi, JP;
Toshio Higashi, Yamanashi, JP;
Manabu Komiyama, Kawasaki, JP;
Takashi Yamane, Matsudo, JP;
Fujitsu Limited, Kawasaki, JP;
Fujitsu Quantum Devices Limited, Yamanashi, JP;
Abstract
A package for hermetically sealing a semiconductor laser which outputs light having a wavelength of 1.1 μm or more is filled with a gas containing an oxidizing gas such as oxygen or ozone. The oxidizing gas in the package oxidizes hydrogen in the package to prevent hydrogen embrittlement of electrodes that applies stress on electrodes and to suppress variation in the emission wavelength which would otherwise result from the application of stress.