This inventor holds 1 USPTO granted patent. Top assignee: Seiko Watch Kabushiki Kaisha (Trading as Seiko Watch Corporation). Active years: 2025.
Company Filing History:
Years Active: 2025
Title: Tomokazu Ejiri: Innovator in Timepiece Technology
Introduction
Tomokazu Ejiri is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of horology, particularly in the development of advanced timepiece components. His innovative work has led to the creation of a unique hairspring that enhances the performance of timepieces.
Latest Patents
Ejiri holds a patent for a hairspring, timepiece movement, and timepiece. The objective of this invention is to provide a hairspring characterized by being made of a Nb—Mo alloy containing 5% or more and 14% or less of Mo in atomic percent. This hairspring is designed to improve the functionality and reliability of timepieces. It is preferable that the hairspring has a deformation texture, with a region having a <110>∥{001} orientation degree in a cross-section being 30% or more of the entire cross-sectional area. This innovation represents a significant advancement in timepiece technology.
Career Highlights
Ejiri is currently employed at Seiko Watch Corporation, a leading company in the watchmaking industry. His work at Seiko has allowed him to apply his inventive skills to create high-quality timepieces that are both reliable and precise. His dedication to innovation has made him a valuable asset to the company.
Collaborations
Throughout his career, Ejiri has collaborated with talented individuals such as Terutaka Sugiyama and Naoki Amano. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies in the field of horology.
Conclusion
Tomokazu Ejiri is a distinguished inventor whose work in the field of timepiece technology has led to significant advancements. His innovative hairspring design exemplifies his commitment to enhancing the performance of timepieces. His contributions continue to influence the watchmaking industry, solidifying his reputation as a leading inventor in this field.