This inventor holds 2 USPTO granted patents. Top assignee: Kabushiki Kaisha Meidensha. Active years: 1997-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (1997)
- Nagoya, JP (1999)
Company Filing History:
Years Active: 1997-1999
Title: Kazutoshi Nagayama: Innovator in Electric Motor Technology
Introduction
Kazutoshi Nagayama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electric motor technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and performance of induction motors and synchronous motors.
Latest Patents
Nagayama's latest patents include a "Pole change induction motor and control apparatus and method for the same." This invention provides an apparatus for a pole change induction motor and a control method applicable to driving sources of electric vehicles without power transmission. The control apparatus allows for electrical changes between an n number of poles and a 2n number of poles, ensuring a constant output torque in high rotation speeds without increasing the dimensions of the motor or associated inverter.
Another notable patent is the "Method and apparatus for controlling hybrid excitation type permanent magnet synchronous motor." This invention extends the operable range of a hybrid excitation type motor by controlling the magnetic flux of the field. It maintains a constant magnetic flux at lower rotation speeds and adjusts it inversely with the rotation speed when above a predetermined base speed.
Career Highlights
Kazutoshi Nagayama is currently employed at Kabushiki Kaisha Meidensha, where he continues to innovate in the field of electric motor technology. His work has been instrumental in developing advanced control methods that enhance motor performance and efficiency.
Collaborations
Nagayama has collaborated with notable colleagues such as Tadashi Ashikaga and Takayuki Mizuno. Their combined expertise has contributed to the successful development of innovative technologies in electric motors.
Conclusion
Kazutoshi Nagayama is a key figure in the advancement of electric motor technology, with a focus on improving efficiency and performance through innovative patents. His contributions are shaping the future of electric vehicles and motor applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile