Invention Grant
- Patent Title: Digital micrometer
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Application No.: US17251097Application Date: 2019-06-07
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Publication No.: US11821724B2Publication Date: 2023-11-21
- Inventor: Koji Matsumoto , Yuji Fujikawa , Shinichiro Yanaka , Osamu Saito
- Applicant: MITUTOYO CORPORATION
- Applicant Address: JP Kawasaki
- Assignee: MITUTOYO CORPORATION
- Current Assignee: MITUTOYO CORPORATION
- Current Assignee Address: JP Kawasaki
- Agency: Rankin, Hill & Clark LLP
- Priority: JP 18112122 2018.06.12 JP 19098160 2019.05.25
- International Application: PCT/JP2019/022690 2019.06.07
- International Announcement: WO2019/240025A 2019.12.19
- Date entered country: 2020-12-10
- Main IPC: G01B3/18
- IPC: G01B3/18 ; G01B7/14

Abstract:
A digital micrometer includes a main-body frame, a spindle, a thimble part, and a displacement detector that detects displacement of the spindle. The main-body frame includes a U-shaped frame part, and a spindle holding part provided on the other end side of the U-shaped frame part and having a length in a direction away from an anvil. The spindle is held by a spindle holding part, provided to be movable forward and backward in an axial direction with respect to the anvil, and includes a contactor on one end face. The main-body frame and the spindle are formed of a non-magnetic material.
Public/Granted literature
- US20210140751A1 DIGITAL MICROMETER Public/Granted day:2021-05-13
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