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. 25, 2021
Hitachi High-tech Corporation, Tokyo, JP;
Ryosuke Hoshi, Tokyo, JP;
Yasuaki Aoyama, Tokyo, JP;
Satoru Kaneko, Tokyo, JP;
Hiroyuki Kobayashi, Tokyo, JP;
Hiroshi Watanabe, Tokyo, JP;
Shinji Azuma, Tokyo, JP;
Kuniaki Onizawa, Tokyo, JP;
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Abstract
An objective of the present invention is to provide a conveyance device that can increase inductance variation while suppressing the lowering of thrust. A conveyance deviceconveys an articleto be conveyed. The articleto be conveyed can be conveyed by a magnetic force. The conveyance devicecomprises a plurality of electromagnetsand. Each electromagnetcomprises: teethandincluding a magnetic body; and windingsandwound around the teethand. The conveyance devicecomprises a yokefor magnetically coupling the electromagnetsand, and driving circuitsandfor supplying current to the windingsand. The teethandhave a cavityextending in the axial direction.