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:
Dec. 08, 1992
Filed:
Oct. 29, 1990
Applicant:
Inventors:
Mitsugu Terada, Kimitsu, JP;
Ken Ohmata, Kimitsu, JP;
Kazuo Shimazaki, Chiyoda, JP;
Yasuo Oeda, Kimitsu, JP;
Yuichiro Terashi, Kimitsu, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G01N / ; H01S / ;
U.S. Cl.
CPC ...
356346 ; 356419 ; 372 32 ;
Abstract
This invention is provided with a wavelength selecting means for uses in selectively receiving beam in compliance with each of a reference beam and a measured beam in order to simplify a correction or comparison of oscillating wavelengths in the laser device and further to improve a reliability and a controlling responsive speed.