This inventor holds 5 USPTO granted patents. Top assignees: Mabuchi Motor Co., Ltd., Tanaka Kikinzoku Kogyo K.k., University of Massachusetts. Active years: 1996-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiba-ken, JP (2003)
- Chiba, JP (1996 - 2020)
Company Filing History:

Years Active: 1996-2026
Title: Yasuhiro Hashimoto: Innovator in Brushed Motor Technology
Introduction
Yasuhiro Hashimoto is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of motor technology, particularly in the development of brushed motors. With a total of 5 patents to his name, Hashimoto's work has had a considerable impact on the efficiency and performance of small-sized DC motors.
Latest Patents
One of Hashimoto's latest patents involves a brushed motor designed to effectively decrease noise in high rotational speed ranges. This innovation features a bar-shaped flat attachment made of synthetic resin, which is inserted into an opening of a rotor's core. The attachment is fixed in place using an adhesive agent and is designed to engage with the inclined surfaces of adjacent teeth, thereby shaping the outer peripheral surface of the core to suppress wind noise.
Another significant patent focuses on a material for sliding contacts suitable for small-sized DC motors, particularly those used in compact CD players. This material consists of a specific composition of nickel, zinc oxide, magnesium oxide, and silver, which enhances durability and performance in motor applications.
Career Highlights
Throughout his career, Yasuhiro Hashimoto has worked with prominent organizations, including Mabuchi Motor Co., Ltd. and the University of Massachusetts. His experience in these institutions has allowed him to refine his expertise in motor technology and contribute to various innovative projects.
Collaborations
Hashimoto has collaborated with notable colleagues such as Toshiya Yamamoto and Keiji Nakamura. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field of motors.
Conclusion
Yasuhiro Hashimoto's contributions to brushed motor technology and materials for sliding contacts have established him as a key figure in the field of motor innovation. His patents reflect a commitment to enhancing the performance and efficiency of small-sized motors, making a lasting impact on the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile