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.:

US 8989828 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 24, 2015

Filed:

May. 22, 2013
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Ryoji Nakagawa, Hitachi, JP;

Ryuya Ando, Hitachi, JP;

Manabu Aoki, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 6/06 (2006.01); H01F 6/04 (2006.01);
U.S. Cl.
CPC ...
H01F 6/06 (2013.01); H01F 6/04 (2013.01);
Abstract

A superconducting magnet apparatus includes: a bobbin around which a superconducting coil is wound, the bobbin serving as a protective resistor; a persistent current switch for supplying a persistent current to the superconducting coil; a first closed circuit with the superconducting coil and the persistent current switch connected in series to the coil; and a second closed circuit with the superconducting coil and the bobbin connected in series to the coil.


Find Patent Forward Citations

Nakagawa, Ryoji. (2015). Superconducting magnet apparatus (U.S. Patent No. 8989828). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8989828

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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