Company Filing History:
Years Active: 1981-1982
Title: Koichiro Nakagawa: Innovator in Speed Detection and Inverter Technology
Introduction
Koichiro Nakagawa is a prominent inventor based in Kitakyushu, Japan. He has made significant contributions to the fields of speed detection and inverter technology, holding a total of four patents. His innovative work has had a considerable impact on the efficiency and functionality of various electronic systems.
Latest Patents
One of Nakagawa's latest patents is a speed detector using a resolver. This invention features a fixed frequency oscillator that produces two-phase sine waves to excite the windings of a resolver. It includes multipliers for processing the output of the resolver and a speed conversion circuit that enhances the accuracy of rotation speed signals. This design eliminates the need for countermeasures against harmonics and noise, making it a significant advancement in speed detection technology.
Another notable patent is the current type inverter, which excels in transient response. This inverter utilizes a two-phase sine wave generator that receives motor speed and speed deviation signals. It calculates stator current instruction vectors, which are then applied as frequency instruction signals to the inverter. This innovation improves the performance of current type inverters, making them more responsive and efficient.
Career Highlights
Koichiro Nakagawa is associated with Yaskawa Electric Corporation, a leading company in the field of industrial automation and robotics. His work at Yaskawa has allowed him to develop cutting-edge technologies that enhance the capabilities of various electronic systems. His contributions have been instrumental in advancing the company's mission to provide innovative solutions for its clients.
Collaborations
Throughout his career, Nakagawa has collaborated with notable colleagues, including Takanobu Iwakane and Tohru Kai. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Koichiro Nakagawa's innovative spirit and dedication to advancing technology have made him a key figure in the fields of speed detection and inverter technology. His patents reflect his commitment to improving electronic systems, and his work continues to influence the industry.