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: Katsumoto Kataoka: Rotor and Brushless Motor Innovation
Introduction
Katsumoto Kataoka is an inventor associated with Yachiyo, Japan. His work includes a patented rotor design intended for use in brushless motors. Kataoka is credited with 1 patent.
Latest Patents
Kataoka’s patent, “Rotor, Brushless Motor, and Method for Manufacturing Rotor,” describes a rotor that turns around a defined centerline. The design includes a columnar magnet and a rotating shaft with a columnar section and a cylindrical section that covers part of the magnet’s outer circumference. The magnet’s outer surface is joined to the shaft’s inner cylindrical surface, while their end surfaces remain unjoined. The patent also addresses a method for manufacturing the rotor.
Career Highlights
Kataoka’s listed company affiliations include Citizen Chiba Precision Co., Ltd. and Citizen Watch Co., Ltd. His patent reflects work on rotor construction and manufacturing for brushless motor applications.
Collaborations
Kataoka’s listed coworkers include Tomohiro Seimiya and Akito Takenaka.
Conclusion
Katsumoto Kataoka’s patent documents a rotor design that joins a magnet to a rotating shaft along their circumferential surfaces while leaving their end surfaces unjoined, connecting his work with brushless motor technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile