Title:
電鋳部品と時計
Document Type and Number:
Japanese Patent JP7133377
Kind Code:
B2
Abstract:
An object of the present invention is to provide an electroformed part favorable for an assembly part of a timepiece or the like and a timepiece using the same. The present invention relates to an electroformed part, which is an electroformed part composed of a nickel-iron alloy constituted by nickel, iron, and unavoidable impurities, containing iron at 5 to 25% by mass, and having a roughly layered form portion in which a stacked form portion having an inclined iron content in a thickness direction is repeatedly stacked a plurality of times. It is preferred that the stacked portion is constituted by crystal grains having an average grain diameter of 50 nm or less.
Inventors:
Matsuo Kishi
Application Number:
JP2018133920A
Publication Date:
September 08, 2022
Filing Date:
July 17, 2018
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
C25D1/00; C22C19/03; G04B1/14; G04B19/247
Domestic Patent References:
| JP2016057283A | ||||
| JP2011039287A | ||||
| JP2014198897A |
Foreign References:
| US20090159451 |
Attorney, Agent or Firm:
田▲崎▼ 聡
Suzuki Shingo
Kazuzumi Nishizawa
Suzuki Shingo
Kazuzumi Nishizawa