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. 30, 2026
Filed:
Jul. 30, 2021
Adtex Inc., Gunma, JP;
Hiroshi Mukaiyama, Gunma, JP;
Hiroo Sato, Gunma, JP;
ADTEX Inc., Gunma, JP;
Abstract
Provided is a refrigeration circuit capable of stably generating a magnetic field from a coil of a magnetic field generation device for a long period of time. The refrigeration circuit includes a compressor (), a condenser (), an expansion valve (), an evaporator connected to each other through a refrigerant pipe (). The evaporator is formed from a coil () formed with multiple through-holes () in which refrigerant flows, having a rectangular section, and wound in a solenoid shape, and the coil () generates a magnetic field. With this configuration, the coil () as the evaporator can be efficiently cooled with refrigerant, and therefore, a strong magnetic field can be stably generated for a long period of time.