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:
Jun. 23, 2026
Filed:
Aug. 06, 2021
Applicants:
Kyocera Corporation, Kyoto, JP;
University of Tsukuba, Tsukuba, JP;
Inventors:
Assignees:
KYOCERA Corporation, Kyoto, JP;
University of Tsukuba, Tsukuba, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/026 (2006.01); A61B 5/11 (2006.01);
U.S. Cl.
CPC ...
A61B 5/4812 (2013.01); A61B 5/0205 (2013.01); A61B 5/7257 (2013.01); A61B 5/7267 (2013.01); A61B 5/7278 (2013.01); A61B 5/0261 (2013.01); A61B 5/11 (2013.01); A61B 2562/0219 (2013.01);
Abstract
A stage of sleep is easily estimated. A sleep estimation device includes a first acquisition unit configured to acquire blood flow data, a generation unit configured to generate a frequency spectrum of the blood flow data by performing frequency analysis processing on the blood flow data, and a first determination unit configured to determine a stage of sleep of a subject based on the frequency spectrum.