Location History:
- Nagoya, JP (2000)
- Aichi, JP (1994 - 2002)
- Tokyo, JP (2001 - 2023)
Company Filing History:
14 out of 21,351 
3 out of 15,928 
Years Active: 1994-2023
Title: The Innovative Contributions of Toshiyuki Kaitani
Introduction
Toshiyuki Kaitani is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of drive devices for AC motors and control apparatus for electric rotating machines. With a total of 17 patents to his name, Kaitani's work has had a substantial impact on the industry.
Latest Patents
Kaitani's latest patents include a drive device for an AC motor, a compressor drive device, and a refrigeration cycle device. The drive device for an AC motor features an adaptive observation unit that estimates the angular velocity of the rotor. It also includes a speed control unit that determines a torque command to match the angular velocity command with the average estimated angular velocity. Additionally, a phase lead amount calculation unit calculates the phase lead amount based on disturbance frequency, while a vibration suppression control unit determines a second torque command to suppress speed pulsations in the AC motor. The torque control unit then regulates the torque based on both torque commands.
Another notable patent is the control apparatus for an electric rotating machine. This controller outputs voltage instructions for drive control and includes a drive voltage instruction calculation section, a position estimation voltage generator, and a noise reduction voltage generator. These components work together to enhance the performance and efficiency of electric rotating machines.
Career Highlights
Throughout his career, Toshiyuki Kaitani has worked with esteemed companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in electrical engineering.
Collaborations
Kaitani has collaborated with notable coworkers, including Yoshihiko Kinpara and Masahiro Kimata. Their combined expertise has fostered an environment of innovation and creativity, leading to the development of advanced technologies.
Conclusion
Toshiyuki Kaitani's contributions to the field of electrical engineering are noteworthy and impactful. His innovative patents and collaborations have paved the way for advancements in AC motor technology and electric rotating machines. His work continues to influence the industry and inspire future innovations.