Invention Grant
- Patent Title: Scale and manufacturing method of the same
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Application No.: US17244243Application Date: 2021-04-29
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Publication No.: US12204073B2Publication Date: 2025-01-21
- Inventor: Toshihiko Aoki
- Applicant: MITUTOYO CORPORATION
- Applicant Address: JP Kanagawa
- Assignee: MITUTOYO CORPORATION
- Current Assignee: MITUTOYO CORPORATION
- Current Assignee Address: JP Kanagawa
- Agency: Rankin, Hill & Clark LLP
- Priority: JP2017-233154 20171205
- Main IPC: G02B1/14
- IPC: G02B1/14 ; G01D5/347 ; G02B1/18
Abstract:
A scale includes: a substrate; scale gratings that are formed on a face of the substrate and has a plurality of gratings at a predetermined interval; and a protective layer that is made of fluoride and covers the scale gratings and an exposed portion of the face of the substrate.
Public/Granted literature
- US20210247547A1 SCALE AND MANUFACTURING METHOD OF THE SAME Public/Granted day:2021-08-12
Information query
