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.

Date of Patent:
Nov. 02, 1993

Filed:

Oct. 30, 1991
Applicant:
Inventors:

Ryoichi Sueyasu, Yamanashi, JP;

Mayumi Watanabe, Chino, JP;

Kazuhiko Sagara, Yamanashi, JP;

Hidehiko Kaya, Yamanashi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250339 ; 250343 ;
Abstract

A sample having a specific optical path length of 1 to 15 mm is irradiated with near infrared of two or more wavelengths selected from 700 to 1200 nm to determine constituents of dairy products. Preferably, a pair of specific wavelengths comprise a first wavelength having a high correlation with a target constituent and a second wavelength having a low correlation with the target constituent or comprise wavelengths both having high correlations with the target constitutent. Quantities of near infrared of these two specific wavelengths transmitted by the sample are measured to determine absorbencies and a multiple linear regression equation is used to calculate the constituent on the basis of the absorbencies.


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