Location History:
- Ama, JP (1984)
- Nagoya, JP (1981 - 2000)
Company Filing History:
1 out of 4,626 
1 out of 16 
1 out of 1,326 
Years Active: 1981-2000
Title: Hisayoshi Takahashi: Innovator in Electric Motor Technology
Introduction
Hisayoshi Takahashi is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of electric motor technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of electric motor-driven systems.
Latest Patents
One of Hisayoshi Takahashi's latest patents is a driving unit for an electric motor-driven bicycle. This innovative design features a motor with an output shaft that is coaxial with the crank shaft of the pedal. The system includes a planet roller reducer that allows for effective torque transmission to the driving chain sprocket, ensuring that the motor's torque is utilized efficiently when it exceeds a predetermined pedaling torque level.
Another significant patent involves a planetary-roller transmission that transmits power between rotating shafts using a series of planet rollers. This design incorporates elastic components that adjust the contact pressure between the rollers and the internal contact ring, enhancing the overall performance of the transmission system. The mechanism also includes a torque cam that produces a compressive force proportional to the load on the shafts, further optimizing functionality.
Career Highlights
Hisayoshi Takahashi has worked with prominent companies such as Mitsubishi Heavy Industries Limited and Mitsubishi Jukogyo K.K. His experience in these organizations has allowed him to develop and refine his innovative ideas in electric motor technology.
Collaborations
Throughout his career, Takahashi has collaborated with talented individuals, including Shoichi Oda and Hiroyuki Sonobe. These partnerships have contributed to the advancement of his projects and the successful development of his patents.
Conclusion
Hisayoshi Takahashi's contributions to electric motor technology demonstrate his innovative spirit and dedication to improving mechanical systems. His patents reflect a deep understanding of engineering principles and a commitment to enhancing the efficiency of electric motor-driven applications.