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:
Dec. 09, 2025
Filed:
Mar. 08, 2023
Seiko Watch Kabushiki Kaisha (Trading As Seiko Watch Corporation), Tokyo, JP;
Tomokazu Ejiri, Chiba, JP;
Terutaka Sugiyama, Chiba, JP;
Naoki Amano, Chiba, JP;
Jun Tsuneyoshi, Chiba, JP;
Abstract
An object of the present invention is to provide a hairspring, a timepiece movement, and a timepiece. A hairspring according to the present invention is characterized by being made of a Nb—Mo alloy containing 5% or more and 14% or less of Mo in at %. Alternatively, a hairspring according to the present invention is characterized by being made of a Nb—Mo alloy containing 5% or more and 14% or less of Mo in at %, inevitable impurities and balance Nb. It is preferable that the hairspring has a deformation texture and a region having a <110>∥{001} orientation degree in a cross section is 30% or more of an entire cross-sectional area.