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:
Jan. 23, 2024
Filed:
Feb. 07, 2020
Applicant:
Tokyo Electron Limited, Tokyo-to, JP;
Inventors:
Assignee:
TOKYO ELECTRON LIMITED, Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 5/074 (2010.01); C12M 1/00 (2006.01); C12M 1/34 (2006.01);
U.S. Cl.
CPC ...
C12N 5/0607 (2013.01); C12M 31/00 (2013.01); C12M 41/46 (2013.01);
Abstract
The present disclosure provides a method for determining the undifferentiated state of pluripotent stem cells, comprising: irradiating a test culture medium in which pluripotent stem cells are cultured with wavelength light having a wavelength in the range of 190 nm to 2,500 nm or a partial range thereof; detecting the reflected light, transmitted light or transmitted reflected light thereof to obtain absorbance spectrum data; and analyzing the absorbance at all or part of the measurement wavelengths in the absorbance spectrum data to determine the undifferentiated state of the pluripotent stem cells.