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:
Jun. 18, 2024

Filed:

Mar. 25, 2020
Applicants:

Ushio Denki Kabushiki Kaisha, Tokyo, JP;

Towa Pharmaceutical Co., Ltd., Kadoma, JP;

Inventors:

Go Yamada, Tokyo, JP;

Aya Ota, Tokyo, JP;

Koji Nakayama, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/95 (2006.01); G01N 21/88 (2006.01); G01N 21/956 (2006.01);
U.S. Cl.
CPC ...
G01N 21/9508 (2013.01); G01N 2021/8845 (2013.01); G01N 2021/95615 (2013.01);
Abstract

Super continuum light having a continuous spectrum over at least 1100 to 1300 nm is emitted from a pulsed light source, is pulse-stretched by a stretching element such that a relationship between a wavelength and an elapsed time in one pulse is one to one, and is radiated to a product. The light transmitted through the product is received by a light receiver, and output data is input to the determination unit. A quality determination program of the determination unit calculates an absorption spectrum from the output data, quantifies the absorption spectrum by chemometrics, and compares the absorption spectrum with a reference value to determine quality. The product determined to be a defective product is excluded by an exclusion mechanism.


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