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.

Date of Patent:
Feb. 03, 2026

Filed:

May. 11, 2023
Applicant:

Nsk Ltd., Tokyo, JP;

Inventors:

Ryo Segawa, Fujisawa, JP;

Yuta Nakabayashi, Fujisawa, JP;

Assignee:

NSK LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 25/20 (2006.01); F16D 1/10 (2006.01); F16H 25/24 (2006.01);
U.S. Cl.
CPC ...
F16H 25/20 (2013.01); F16D 1/10 (2013.01); F16D 2001/103 (2013.01); F16H 2025/2075 (2013.01); F16H 2025/2087 (2013.01); F16H 2025/2481 (2013.01);
Abstract

A fitting shaft portion has an inner-diameter side engaging portion on an outer peripheral surface with external teeth arranged in a circumferential direction; a fitting member has an outer-diameter side engaging portion on an inner peripheral surface with internal teeth arranged in the circumferential direction and engaging with the inner-diameter side engaging portion; an engaging portion between the inner-diameter side engaging portion and the outer-diameter side engaging portion includes a portion having interference in the radial direction in a portion in the axial direction; and the fitting shaft portion has a crimped portion at an end portion on one side in the axial direction that engages in the axial direction with the fitting member.


Find Patent Forward Citations

Quick Actions:

Segawa, Ryo. (2026). Ball screw device and method for manufacturing same (U.S. Patent No. 12540658). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12540658

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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