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:
Mar. 12, 2024

Filed:

Jun. 15, 2022
Applicant:

Hitachi High-tech Science Corporation, Tokyo, JP;

Inventors:

Kai Maruyama, Tokyo, JP;

Takayuki Wakui, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/28 (2006.01); G01N 21/25 (2006.01); G01N 21/33 (2006.01); G01N 21/3577 (2014.01); G01N 21/359 (2014.01); G01N 21/59 (2006.01);
U.S. Cl.
CPC ...
G01N 21/255 (2013.01); G01N 21/33 (2013.01); G01N 21/3577 (2013.01); G01N 21/359 (2013.01); G01N 21/59 (2013.01); G01N 2201/117 (2013.01);
Abstract

When a measurement sample whose absorbance greatly changes depending on a wavelength range is measured, measurement with a high S/N ratio and accuracy can be efficiently performed in a short time. For a plurality of wavelength ranges in wavelength scanning measurement of a measurement sample, based on measurement conditions including one of a plurality of dimming plates (to) to be disposed in each wavelength range and a scanning speed of a wavelength to be set in each wavelength range, when wavelength scanning measurement in which the entire measurement wavelength range including all of the plurality of wavelength ranges is scanned at once is performed, a spectrophotometer () changes one of the plurality of dimming plates (to) and the scanning speed according to the measurement conditions for each wavelength range.


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