This inventor holds 4 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1978-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1978-1989
Title: The Innovations of Susumu Kashiwazaki
Introduction
Susumu Kashiwazaki is a notable inventor based in Utsunomiya, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of control systems for brushless direct current motors. With a total of 4 patents to his name, his work has had a considerable impact on motor control technology.
Latest Patents
Kashiwazaki's latest patents include a speed control apparatus for a brushless direct current motor. This invention involves converting AC power supply to DC using a rectifier circuit, which is then stepped up by a chopper circuit. The output is smoothed and input to an inverter, which is connected to a synchronous motor. The system intelligently manages the speed of the motor by adjusting the control of the switching element based on detected speed signals. Another significant patent is a control system for brushless DC motors, which detects counter electromotive force voltages in motor windings to produce rotor position detection signals. This innovation ensures that the phase of these signals remains stable, regardless of the load on the motor.
Career Highlights
Kashiwazaki is currently employed at Hitachi, Ltd., where he continues to innovate and develop advanced motor control technologies. His work has been instrumental in enhancing the efficiency and performance of brushless DC motors, making them more reliable for various applications.
Collaborations
Throughout his career, Kashiwazaki has collaborated with esteemed colleagues such as Kiyoshi Nagasawa and Toru Inoue. These partnerships have fostered a creative environment that has led to groundbreaking advancements in motor control systems.
Conclusion
Susumu Kashiwazaki's contributions to the field of electrical engineering, particularly in brushless DC motor technology, highlight his innovative spirit and dedication to advancing motor control systems. His patents reflect a deep understanding of electrical principles and a commitment to improving efficiency in motor applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile