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Patent Searching and Data


Title:
WRISTWATCH COMPONENT, WRISTWATCH, AND WRISTWATCH COMPONENT MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/095605
Kind Code:
A1
Abstract:
[Problem] To provide: a component (wristwatch component) for a wristwatch that, while being made from diamond crystal, is strong against external impact force, can be easily shaped, and can add decorativeness; a method for manufacturing the wristwatch component; and a wristwatch comprising the wristwatch component. [Solution] A diamond crystal is prepared that has a planar direction shape that is a square shape, a circular shape, or a circular shape with an orientation flat surface. If the diamond crystal has a square shape, the length of a side thereof is at least 10.0 mm, and if the diamond crystal has a circular shape, the diameter thereof is at least 0.4 in. A wristwatch component is extracted from the diamond crystal through laser punching of the diamond crystal such that at least a portion of the outline thereof is formed so as to have arcs or elliptical arcs arranged at a pitch of 330 to 420 μm. The manufacturing of the wristwatch component also includes polishing of the wristwatch component extracted from the diamond crystal. A wristwatch is configured so as to comprise the wristwatch component.

Inventors:
UCHIUMI HIDEHIRO (JP)
SHIBATA SUSUMU (JP)
Application Number:
PCT/JP2020/041218
Publication Date:
May 20, 2021
Filing Date:
November 04, 2020
Export Citation:
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Assignee:
ADAMANT NAMIKI PREC JEWEL CO LTD (JP)
International Classes:
C30B29/04; G04B15/14; G04B17/06; G04B19/12; G04B45/00
Domestic Patent References:
WO2018100024A12018-06-07
WO2019043432A12019-03-07
WO2018155381A12018-08-30
Foreign References:
JPH0662914A1994-03-08
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