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:
Mar. 24, 1987
Filed:
Dec. 13, 1984
Applicant:
Inventors:
Kouzou Tsunoyama, Chiba, JP;
Wataru Tanimoto, Chiba, JP;
Yoshiharu Ohashi, Setagaya, JP;
Shigeyuki Kimura, Hino, JP;
Fumio Asakawa, Hachiouji, JP;
Assignees:
Kawasaki Steel Corporation, all of, JP;
Japan Spectroscopic Co., Ltd, all of, JP;
Spectral Instrument Co., all of, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356318 ;
Abstract
A focusing lens having a focal length f is provided at a position spaced a distance L apart from a substance to be measured in the fluid state, the relationship between L and f is controlled, so that the formula: