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. 25, 2005
Filed:
Mar. 14, 2002
Yoshitaka Ito, Chiryu, JP;
Masaaki Yoshikawa, Kariya, JP;
Yousuke Yanagi, Chiryu, JP;
Tetsuo Oka, Obu, JP;
Yoshitaka Ito, Chiryu, JP;
Masaaki Yoshikawa, Kariya, JP;
Yousuke Yanagi, Chiryu, JP;
Tetsuo Oka, Obu, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A magnetic device which is highly durable, reliable, and safe without being damaged when a magnetic filed is applied. The magnetic device includes a cooling device having a cold head refrigerated by an effect of a cryogenic refrigerator, a magnetic field generation device configured to apply a non-stationary magnetic field on a magnetic body, and a cold head extension portion configured to thermally connect the magnetic body and the cold head. The cold head extension portion includes at least two members, one a low resistance member and the other a high resistance member having different resistivities. With this device, the eddy current generated in the cold head extension portion and the electromagnetic force produced in the cold head by the cold head extension portion are reduced.