This inventor holds 5 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Hitachi Astemo Ltd., Hitachi Automotive Systems, Ltd., Nissan Motor Company Limited. Active years: 2001-2023.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ibaraki, JP (2002)
- Hitachinaka, JP (2001 - 2023)
Company Filing History:
1 out of 1,501 
1 out of 2,028 
1 out of 13,420 
Years Active: 2001-2023
Title: Shigeyuki Nonomura: Innovator in Motor Control Technology
Introduction
Shigeyuki Nonomura is a notable inventor based in Hitachinaka, Japan. He has made significant contributions to the field of motor control technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and functionality of motor control devices.
Latest Patents
Nonomura's latest patents include a motor control device and an inverter control device. The motor control device features a PWM control unit, a carrier frequency setting unit, and a carrier frequency switching calculation unit. This innovative design allows for the generation of a signal to drive an inverter through pulse width modulation. The carrier frequency setting unit adjusts the carrier frequency based on the motor's rotational speed, while the switching calculation unit determines the frequency switching speed under various operating conditions.
The inverter control device aims to correct variations in the gain of a current sensor without increasing the size or cost of the device. It includes a 3-phase/dq-axis conversion unit that transforms the output current detected by the current sensor into dq-axis current. Additionally, a gain adjustment unit modifies the detection gain for each phase, ensuring that the current value of any secondary harmonic component remains below a predetermined threshold.
Career Highlights
Throughout his career, Nonomura has worked with prominent companies, including Nissan Motor Company Limited. His expertise in motor control technology has positioned him as a valuable asset in the automotive industry.
Collaborations
Nonomura has collaborated with notable colleagues such as Toshio Hori and Hirokazu Matsui. Their combined efforts have contributed to advancements in motor control systems.
Conclusion
Shigeyuki Nonomura's innovative work in motor control technology has led to significant advancements in the field. His patents reflect a commitment to improving the efficiency and effectiveness of motor control devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile