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:
May. 20, 2025
Filed:
Aug. 27, 2021
Hitachi High-tech Corporation, Tokyo, JP;
Ryosuke Hoshi, Tokyo, JP;
Yasuaki Aoyama, Tokyo, JP;
Akeshi Takahashi, Tokyo, JP;
Satoru Kaneko, Tokyo, JP;
Takeshi Tamakoshi, Tokyo, JP;
Hiroyuki Kobayashi, Tokyo, JP;
Hiroshi Watanabe, Tokyo, JP;
Kuniaki Onizawa, Tokyo, JP;
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Abstract
Provided is a conveyance device capable of reducing the weight of a conveyance device while preventing magnetic saturation. A conveyance device according to the present invention is characterized by comprising a conveyance path () in which a conveyed object is moved, an electromagnet provided on the surface of the conveyance path () opposite to the surface on which the conveyed object moves, and a drive circuit for supplying a current to the electromagnet, the electromagnet including teeth () formed from a magnetic body, and windings () wound onto the surface of the teeth (), a yoke () is provided that supports the teeth (), and the relationship between the minimum cross-sectional area Sy of the yoke () and the minimum cross-sectional area St of the part of the teeth () where the windings () are provided is Sy<St.