This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignees: Citizen Chiba Precision Co., Ltd., Citizen Watch Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 1 
1 out of 5 Years Active: 2026
Title: Tomohiro Seimiya: Rotor and Brushless Motor Innovation.
Introduction
Tomohiro Seimiya is an inventor associated with Yachiyo, Japan. His patent work addresses rotor construction and manufacturing for brushless motors.
Latest Patents
Seimiya is credited with 1 patent: “Rotor, Brushless Motor, and Method for Manufacturing Rotor.” The invention describes a rotor that turns around a defined centerline and includes a columnar magnet and a rotating shaft. A cylindrical part of the shaft covers part of the magnet’s outer circumference, and the two surfaces are joined. The magnet’s end surface and the shaft’s end surface are not joined.
Career Highlights
Seimiya’s listed company affiliations include Citizen Chiba Precision Co., Ltd. and Citizen Watch Co., Ltd. His patent reflects work on rotor design and manufacturing for brushless motor applications.
Collaborations
His listed coworkers include Katsumoto Kataoka and Makoto Doi.
Conclusion
Tomohiro Seimiya’s recorded invention focuses on a rotor structure that joins the magnet and shaft along their circumferential surfaces, contributing to brushless motor design and manufacturing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile