This inventor holds 33 USPTO granted patents and 2 EPO patents, primarily in Motor Control Systems. Top assignees: Hitachi Automotive Systems, Ltd., Hitachi, Ltd., Hitachi Astemo Ltd.. Active years: 2006-2021.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Isesaki, JP (2006 - 2021)
- Hitachinaka, JP (2018 - 2021)
Company Filing History:
22 out of 2,028 
10 out of 42,740 
1 out of 1,501 
Years Active: 2006-2021
Areas of Expertise:
Title: Innovative Contributions of Naoki Okamoto in Vehicle Drive Mechanisms
Introduction
Naoki Okamoto is a prominent inventor based in Isesaki, Japan, holding an impressive total of 33 patents. His work primarily focuses on innovative control devices and methods for vehicle drive mechanisms and AC motors, significantly enhancing the efficiency and functionality of automotive technologies.
Latest Patents
One of Okamoto's recent patents is a "Control Device and Control Method for Vehicle Drive Mechanism." This invention is designed to regulate the movement of a vehicle drive mechanism by utilizing a moving body restrained by two stoppers. It incorporates a sensor that senses the position of the moving body, allowing the device to limit the operation variable of an actuator as the sensor's output changes.
Another significant patent from Okamoto is for a "Control Device and Control Method for AC Motor and AC Motor Drive System." This innovation aims to enhance overmodulation control, offering high controllability and low noise characteristics. The device employs an inverter to drive the AC motor and uses pulse width modulation for inverter control, which limits the amplitude of the voltage command during over-modulation, ensuring optimal performance.
Career Highlights
Naoki Okamoto has an extensive career in the automotive sector, spending significant time with notable companies such as Hitachi Automotive Systems, Ltd. and Hitachi, Ltd. His contributions in these organizations have led to groundbreaking advancements in vehicle control technology.
Collaborations
Throughout his career, Okamoto has collaborated with talented coworkers, including Yuya Shinozaki and Masaki Hano. Their combined efforts in research and development have propelled innovative advancements in the fields of automotive and motor control technologies.
Conclusion
Naoki Okamoto's impressive portfolio of patents, along with his collaborative efforts in esteemed companies, showcases his dedication to enhancing vehicle drive mechanisms and control systems. His work continues to play a crucial role in advancing automotive technology and improving overall vehicle performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile