公开(公告)号：US11520294B2

公开(公告)日：2022-12-06

申请号：US16292868

申请日：2019-03-05

申请人： Seiko Instruments Inc.

发明人： Takahiko Nakamura ,  Natsuki Ebihara

IPC分类号： G04B31/08 ,  G04B15/14

摘要： There are provided a component for a timepiece, a movement, and a timepiece having excellent lubricating oil holding performance. There is provided a component for a timepiece including a sliding surface having a surface tension of 10 to 35 mN/m. It is preferable that when lubricating oil having a surface tension of 25 to 35 mN/m is applied to the sliding surface, an interfacial tension between the sliding surface and the lubricating oil is 0 to 7 mN/m.

公开(公告)号：US11327441B2

公开(公告)日：2022-05-10

申请号：US15889833

申请日：2018-02-06

申请人： Seiko Instruments Inc.

发明人： Takahiko Nakamura ,  Natsuki Ebihara

IPC分类号： G04B31/08 ,  G04B31/04 ,  F16C33/66 ,  C09D4/00 ,  F16C3/035 ,  F16C33/10 ,  F16C17/02

摘要： A mechanical component, a mechanism module, a movement, and a timepiece superior in lubricating oil retaining performance are to be provided. A mechanical component includes: a first component having a first surface region; a second component having a second surface region on which the first surface region can slide; and an oil retaining film formed on at least one of the first surface region and the second surface region and more lipophilic than the region.

公开(公告)号：US20190278228A1

公开(公告)日：2019-09-12

申请号：US16292868

申请日：2019-03-05

申请人： Seiko Instruments Inc.

发明人： Takahiko Nakamura ,  Natsuki Ebihara

IPC分类号： G04B31/08 ,  G04B15/14

摘要： There are provided a component for a timepiece, a movement, and a timepiece having excellent lubricating oil holding performance. There is provided a component for a timepiece including a sliding surface having a surface tension of 10 to 35 mN/m. It is preferable that when lubricating oil having a surface tension of 25 to 35 mN/m is applied to the sliding surface, an interfacial tension between the sliding surface and the lubricating oil is 0 to 7 mN/m.