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:
Aug. 04, 2026
Filed:
Sep. 27, 2022
Yuki Kaga, Yokohama, JP;
Tomoaki Nakayama, Tokyo, JP;
Tomoyuki Aratani, Yokohama, JP;
Shinnosuke Koshizuka, Yamato, JP;
Tatsuya Sameshima, Yokohama, JP;
Momoko Shionoiri, Yokohama, JP;
Tomofumi Kitazawa, Kawasaki, JP;
Rie Ijichi, Tokyo, JP;
Yuki Kaga, Yokohama, JP;
Tomoaki Nakayama, Tokyo, JP;
Tomoyuki Aratani, Yokohama, JP;
Shinnosuke Koshizuka, Yamato, JP;
Tatsuya Sameshima, Yokohama, JP;
Momoko Shionoiri, Yokohama, JP;
Tomofumi Kitazawa, Kawasaki, JP;
Rie Ijichi, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A cell-containing structure is provided that allows ready-to-use nerve drug response evaluation with high reproducibility to be easily performed. The cell-containing structure for evaluating an electrical property of neurons includes: (a) a culture surface to which the neurons are able to be adhered; (b) a cell mass that is adhered to the culture surface and contains at least one of the neurons; and (c) a plurality of electrodes for measuring the electrical property of the cell mass, wherein a spontaneous firing frequency of cells contained in the cell mass is 0.25 Hz or more per electrode.