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. 21, 2025
Filed:
Feb. 28, 2023
Nsk Ltd., Tokyo, JP;
Proterial, Ltd., Tokyo, JP;
Masahiro Kobayashi, Fukuroi, JP;
Kota Fukuda, Fukuroi, JP;
Hisayoshi Fukui, Fukuroi, JP;
Takahiro Odera, Fukuroi, JP;
Akitoshi Fujimori, Koto-ku, JP;
Takashi Onimoto, Koto-ku, JP;
Yiming Jin, Koto-ku, JP;
NSK LTD., Tokyo, JP;
PROTERIAL, LTD., Tokyo, JP;
Abstract
The torque measuring device includes: a casing made of a magnetic metal; a rotating shaft rotatably arranged inside the casing and having a magnetostrictive effect section whose magnetic permeability changes according to torque to be transmitted; and a torque sensor arranged around the magnetostrictive effect section and supported by the casing, the torque sensor including a coil unit formed in a cylindrical shape using a flexible substrate having a detection coil that changes voltage in response to changes in the magnetic permeability of the magnetostrictive effect section, and a holder made of rubber or synthetic resin, covering an outer peripheral surface of the coil unit, and having a portion that protrudes from the coil unit on both sides in an axial direction; and the torque sensor supported by the casing with an outer peripheral surface of the holder fitted into an inner peripheral surface of the casing.