Patents by Inventor Terutaka Sugiyama

Terutaka Sugiyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • HAIRSPRING, TIMEPIECE MOVEMENT, AND TIMEPIECE
    Publication number: 20230305493
    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.
    Type: Application
    Filed: March 8, 2023
    Publication date: September 28, 2023
    Inventors: Tomokazu EJIRI, Terutaka Sugiyama, Naoki Amano, Jun Tsuneyoshi