The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2023
Filed:
Mar. 08, 2021
Seiko Epson Corporation, Toyko, JP;
Hironori Hasei, Azumino, JP;
Koki Takasawa, Suwa, JP;
Abstract
A method for manufacturing a watch component is a method for manufacturing a watch component that is formed of an austenitized ferritic stainless steel including a base portion formed by a ferrite phase and a surface layer formed by an austenitized phase obtained by austenitizing the ferrite phase. The method includes a first processing step for forming a thinned portion by providing a step in a base material formed of a ferritic stainless steel, a heat treatment step for performing nitrogen absorption treatment on the base material to form the surface layer on an outer surface side of the base portion, and a second processing step for providing a hole portion in the thinned portion.