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:
Aug. 17, 2004
Filed:
Jan. 31, 2002
Applicant:
Inventor:
Seiji Funakawa, Tokyo, JP;
Assignee:
Ando Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 ;
U.S. Cl.
CPC ...
H01S 3/10 ;
Abstract
Lenses and a diffraction grating a mirror a light isolator an arm a pulse motor and a pulse motor operate in conjunction for mechanically roughly adjusting the wavelength of laser light generated by an LD and the wavelength of laser light generated by the LD is electrically finely adjusted in a wavelength adjustment section