This inventor holds 8 USPTO granted patents and 1 EPO patent. Top assignees: Asmo Co., Ltd., Nippondenso Co., Ltd., Daihatsu Motor Company, Ltd.. Active years: 1990-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kosai, JP (1990)
- Aichi, JP (1991)
- Shizuoka, JP (1995)
- Toyohashi, JP (1993 - 2003)
Company Filing History:


Years Active: 1990-2003
Title: Takahiro Yamada: Innovator in Electric Motor Technology
Introduction
Takahiro Yamada is a prominent inventor based in Toyohashi, Japan. He has made significant contributions to the field of electric motor technology, holding a total of 8 patents. His innovative designs focus on enhancing the efficiency and functionality of electric motors.
Latest Patents
One of Yamada's latest patents is a brush holding device capable of reducing noise. This device features a dielectric resin circuit board and at least one metal brush holder secured to the circuit board at its base portion. Each brush holder includes a receiving recess that accommodates a brush and a spring that urges the brush against a commutator. Additionally, the side wall of the brush holder has an engaging piece that resiliently engages with the inner peripheral surface of the outer peripheral wall of the circuit board. Another notable patent is for an electric motor that includes brushes and a commutator of the armature. In this design, a plurality of segments are arranged on the outer peripheral surface of a commutator ring at equal angular intervals. The segments that are in the same phase and oppose each other with a 180° angular interval are connected through a conductive plate, which is molded within the commutator ring.
Career Highlights
Throughout his career, Takahiro Yamada has worked with notable companies such as Asmo Co., Ltd. and Nippondenso Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in electric motor technology.
Collaborations
Yamada has collaborated with esteemed colleagues, including Toshiyasu Ishizuka and Hisashi Masui. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Takahiro Yamada is a distinguished inventor whose work in electric motor technology has led to several important patents. His innovative designs continue to influence the industry and enhance the performance of electric motors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile