- 专利标题： Stator, movement, timepiece, method for manufacturing movement and method for manufacturing stator
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申请号： US17022918申请日： 2020-09-16
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公开(公告)号： US11929640B2公开(公告)日： 2024-03-12
- 发明人: Kosuke Yamamoto , Shinji Kinoshita , Hitoshi Takeuchi , Tatsuya Omura
- 申请人： Seiko Instruments Inc.
- 申请人地址： JP Chiba
- 专利权人： SEIKO INSTRUMENTS INC.
- 当前专利权人： SEIKO INSTRUMENTS INC.
- 当前专利权人地址： JP Chiba
- 代理机构： Crowell & Moring LLP
- 优先权： JP 19172905 2019.09.24
- 主分类号： H02K1/14
- IPC分类号： H02K1/14 ; G04C3/14 ; H02K15/02 ; H02K37/16 ; G04C3/12
摘要：
A stator includes a magnetic plate material that has a main plate surface that is a surface to face a main plate of a movement when assembled to the main plate and that has a rotor accommodating hole formed in a part thereof; and a non-magnetic region that is made non-magnetic by applying chromium on the main plate surface around the rotor accommodating hole and irradiating the chromium with a laser from the main plate surface side.
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