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:
Oct. 02, 2018
Filed:
Nov. 10, 2015
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Shuhei Nagata, Tokyo, JP;
Masaki Koyama, Tokyo, JP;
Takahiro Suzuki, Tokyo, JP;
Yasuaki Aoyama, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 41/03 (2006.01); F04B 39/12 (2006.01); F04B 35/04 (2006.01); H02K 1/14 (2006.01);
U.S. Cl.
CPC ...
H02K 41/031 (2013.01); F04B 35/045 (2013.01); F04B 39/122 (2013.01); H02K 1/14 (2013.01);
Abstract
A linear motor includes an armature with two magnetic poles arranged in the Z direction, and winding wires wound around the two magnetic poles, respectively, and a mover with a permanent magnet, which moves relative to the armature in the Z direction. A first auxiliary magnetic pole is disposed between the two magnetic poles, and a bridge is disposed between the first auxiliary magnetic pole and the magnetic pole. The two winding wires are electrically coupled.