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:
Mar. 05, 2019
Filed:
Aug. 15, 2016
Sanyo Denki Co., Ltd., Tokyo, JP;
Yasushi Misawa, Tokyo, JP;
Hiroyuki Sato, Tokyo, JP;
Akihiko Takahashi, Tokyo, JP;
Satoshi Sugita, Tokyo, JP;
SANYO DENKI CO., LTD., Tokyo, JP;
Abstract
A linear motor includes a field core, a stator that includes a plurality of permanent magnets disposed on the field core, and an armature core that includes an armature winding wire, the armature core being disposed via a magnetic void with the permanent magnets. Assuming that a length of the armature core in a traveling direction of the linear motor is Lc, a pitch of the permanent magnets is τp, and N is a natural number, the length Lc of the armature core is specified by (N×τp−0.2×τp)≤Lc≤(N×τp+0.2×τp).