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:
Dec. 26, 2023

Filed:

Aug. 04, 2021
Applicant:

Hioki E.e. Corporation, Ueda, JP;

Inventors:

Yuki Kawamuro, Ueda, JP;

Akihiro Shioiri, Ueda, JP;

Naoto Nakayama, Ueda, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 15/04 (2006.01); G01N 27/07 (2006.01); G01N 27/22 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
G01N 15/04 (2013.01); G01N 27/07 (2013.01); G01N 27/228 (2013.01); H01M 10/0525 (2013.01);
Abstract

A state determination apparatus includes: electrodes configured to apply AC signal to a mixture; a measurement unit configured to measure an impedance of the mixture for every frequency of the AC signal based on a response signal flowing through the mixture when the AC signal is applied; a setting unit configured to set an equivalent circuit including one or a plurality of parallel circuit(s) based on element(s) corresponding to electrical component(s) of a solid matter; a calculating unit configured to calculate a parameter of the parallel circuit by executing an equivalent circuit analysis for approximating impedance of the equivalent circuit to the impedance of the mixture; and a derivation unit configured to derive an index for specifying a state of the mixture based on the parameter of the parallel circuit.


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