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. 05, 2025
Filed:
Dec. 09, 2022
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventors:
Keisuke Ohtsuka, Osaka, JP;
Mitsushi Itano, Osaka, JP;
Daisuke Karube, Osaka, JP;
Yuuki Yotsumoto, Osaka, JP;
Kazuhiro Takahashi, Osaka, JP;
Tetsushi Tsuda, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 31/02 (2006.01); C09K 5/04 (2006.01);
U.S. Cl.
CPC ...
F25B 31/026 (2013.01); C09K 5/045 (2013.01); C09K 2205/122 (2013.01); C09K 2205/126 (2013.01); C09K 2205/22 (2013.01);
Abstract
In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (), a compressor () can be driven without interposing a power conversion device between an AC power source () and a motor (). Thus, it is possible to provide the air conditioner () that is environmentally friendly and has a relatively inexpensive configuration.