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. 22, 2023
Filed:
Feb. 25, 2021
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Hiroaki Yoshida, Osaka, JP;
Kazuki Sakai, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 21/00 (2006.01);
U.S. Cl.
CPC ...
F25B 21/00 (2013.01); F25B 2321/0023 (2013.01);
Abstract
Provided is a magnetic cooling device including: in a hollow container, an inert gas; a material filling part containing a refrigerant and magnetic material particles having a magnetocaloric effect; gas storages containing the refrigerant at both ends of the material filling part; and material partitions between the material filling part and the gas storages, in which a volume proportion of the inert gas in the hollow container is 1 vol % or more and 12 vol % or less.