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. 14, 2018
Filed:
Apr. 07, 2015
Applicants:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials. Co., Ltd., Yokohama-shi, Kanagawa, JP;
Inventors:
Katsuhiko Yamada, Kanagawa, JP;
Keiichi Fuse, Kanagawa, JP;
Assignees:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA MATERIALS CO., LTD., Yokohama-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 39/00 (2006.01); C09K 5/14 (2006.01); C09K 5/08 (2006.01); F17C 5/00 (2006.01); H01F 6/04 (2006.01);
U.S. Cl.
CPC ...
C09K 5/14 (2013.01); C09K 5/08 (2013.01); F17C 5/00 (2013.01); H01F 6/04 (2013.01);
Abstract
A rare earth regenerator material particle and a regenerator material particle group having a high long-term reliability, and a superconducting magnet, an examination apparatus, a cryopump and the like using the same are provided. A rare earth regenerator material particle contains a rare earth element as a constituent component, and in the particle, a peak indicating a carbon component is detected in a surface region by an X-ray photoelectron spectroscopy analysis.