logo

For the Inventor, By the Inventor

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 10020098 B1

PDFFull Text
Expired
Date of Patent:
Jul. 10, 2018

Filed:

Sep. 05, 2013

Production method for permanent magnet, and production device for permanent magnet

Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Kimiyasu Furusawa, Chiyoda-ku, JP;

Yoshikazu Ugai, Chiyoda-ku, JP;

Hiroyuki Akita, Chiyoda-ku, JP;

Assignee:

MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;

Attorney:

Buchanan Ingersoll & Rooney PC

Primary Examiner:

Quyen Leung

Assistant Examiner:

Eric Johnson

Int. Cl.
CPC ...
B22F 3/02 (2006.01); B22F 3/03 (2006.01); B22F 3/12 (2006.01); B22F 5/00 (2006.01); B22F 7/00 (2006.01); B22F 7/02 (2006.01); H01F 7/02 (2006.01); H01F 41/02 (2006.01); H02K 1/02 (2006.01); H02K 1/27 (2006.01); H01F 1/053 (2006.01); H02K 15/03 (2006.01); C22C 38/00 (2006.01); B22F 3/00 (2006.01); B30B 11/02 (2006.01); B30B 15/30 (2006.01);
U.S. Cl.
CPC ...
H01F 1/0536 (2013.01); B22F 3/003 (2013.01); B22F 3/004 (2013.01); B22F 3/02 (2013.01); B22F 3/03 (2013.01); B22F 3/12 (2013.01); B22F 5/00 (2013.01); B22F 7/008 (2013.01); B22F 7/02 (2013.01); B30B 11/025 (2013.01); B30B 15/302 (2013.01); C22C 38/002 (2013.01); C22C 38/005 (2013.01); H01F 7/02 (2013.01); H01F 41/0266 (2013.01); H01F 41/0273 (2013.01); H01F 41/0293 (2013.01); H02K 1/02 (2013.01); H02K 1/27 (2013.01); H02K 1/278 (2013.01); H02K 15/03 (2013.01);
Abstract

In a production method for permanent magnet, a magnetic powder is loaded into a cavity formed in a groove shape whose longitudinal direction horizontally extends. A loading step of loading the magnetic powder includes a first loading step of loading, of the magnetic powder, a first magnetic powder containing no heavy rare earth element or containing a heavy rare earth element, and a second loading step of loading, of the magnetic powder, a second magnetic powder having a higher content rate of heavy rare earth element than that of the first magnetic powder, at a predetermined position in the cavity.

Find Patent Forward Citations

Furusawa, Kimiyasu. (2018). Production method for permanent magnet, and production device for permanent magnet (U.S. Patent No. 10020098). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10020098

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

Loading…