This inventor holds 6 USPTO granted patents. Top assignees: Toyoda Koki Kabushiki Kaisha, Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha. Active years: 1986-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kariya, JP (1986)
- Okazaki, JP (1987 - 1995)
Company Filing History:
4 out of 629 
2 out of 1,600 
1 out of 38,970 
Years Active: 1986-1995
Title: Shigeo Iwashita: Innovator in Power Steering Technology
Introduction
Shigeo Iwashita is a notable inventor based in Okazaki, Japan. He has made significant contributions to the field of power steering technology, holding a total of 6 patents. His innovative designs have improved the functionality and responsiveness of electric power steering systems in motor vehicles.
Latest Patents
One of Iwashita's latest patents is a controller for a power steering apparatus. This controller utilizes a motor-driven pump to generate assist torque by controlling the flow rate of operation fluid. It features a section for generating a target voltage for the motor, a section for detecting the actual voltage supplied, and a section for generating a voltage compensation value based on the detected voltage. This compensation value is integrated to enhance the motor's responsiveness without causing overshoots.
Another significant patent is for an electric power steering device for motor vehicles. In this device, an electric motor is connected to a steering shaft to provide assisting power. A microprocessor, responsive to vehicle speed, determines whether the vehicle is in a low or high-speed range. Depending on the detected speed, the microprocessor either searches for an assisting power from memory or calculates it based on the steering effort and a constant. This ensures that the assisting power is effectively modulated to meet the vehicle's needs.
Career Highlights
Throughout his career, Shigeo Iwashita has worked with prominent companies such as Toyoda Koki and Nippon Soken, Inc. His experience in these organizations has allowed him to refine his skills and contribute to advancements in automotive technology.
Collaborations
Iwashita has collaborated with notable colleagues, including Masaaki Hayashi and Kunihiko Eto. Their combined expertise has fostered innovation in the field of power steering systems.
Conclusion
Shigeo Iwashita's contributions to power steering technology have made a lasting impact on the automotive industry. His innovative patents and collaborations highlight his dedication to enhancing vehicle performance and safety.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile