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:
Feb. 23, 2010
Filed:
Dec. 16, 2005
Applicants:
Toru Okazaki, Osaka, JP;
Shingo Ohashi, Osaka, JP;
Hidehiko Sugimoto, Fukui, JP;
Toshio Takeda, Tokyo, JP;
Inventors:
Toru Okazaki, Osaka, JP;
Shingo Ohashi, Osaka, JP;
Hidehiko Sugimoto, Fukui, JP;
Toshio Takeda, Tokyo, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 55/04 (2006.01); H02K 3/24 (2006.01); H02K 9/10 (2006.01); H02K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a cooling structure of a superconducting motor in which a superconducting coil is attached to a rotor, grooves are concavely provided on an outer surface of a rotating shaft that penetrates and is fixed to the rotor. A refrigerant is circulated through a refrigerant circulation pipe disposed inside the grooves to that the superconducting coil is cooled by the refrigerant.