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:
Dec. 23, 2025
Filed:
Jun. 27, 2022
Citizen Watch Co., Ltd., Tokyo, JP;
Citizen Machinery Co., Ltd., Nagano, JP;
Tatsuya Namiki, Saitama, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
CITIZEN MACHINERY CO., LTD., Nagano, JP;
Abstract
A machine tool according to the disclosure has a spindle rotatably holding a cylindrical workpiece, a turret holding a thread whirling tool having a cutter ring having a base on which a through hole is formed and a plurality of types of cutting tools disposed on the inner diameter side of the base and having different shapes, so as to rotatably holds the cutter ring, a controller controlling rotations and relative movements of the spindle and the turret, wherein the controller has the spindle hold a workpiece, disposes the workpiece in the through hole so that the workpiece penetrates the through hole, rotates at least one of the cutter ring and the workpiece, and switches movements of the thread whirling tool in an extending direction of the workpiece and a direction intersecting with the extending direction thereof based on a selected predetermined cutting tool.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile