Location History:
- Saitama, JP (2013 - 2015)
- Utsunomiya, JP (2014 - 2015)
- Tochigi-ken, JP (2016)
- Wako, JP (2005 - 2017)
Company Filing History:
8 out of 21,831 
2 out of 10,092 
1 out of 57 Years Active: 2005-2025
Title: Kyoji Hamamoto: Innovator in Electric Power Steering Technology
Introduction
Kyoji Hamamoto is a prominent inventor based in Wako, Japan, known for his significant contributions to the field of electric power steering devices. With a total of 10 patents to his name, Hamamoto has made remarkable advancements that enhance vehicle safety and performance.
Latest Patents
One of Hamamoto's latest patents is an electric power steering device that includes a motor, a drive device supplying the motor with three-phase alternating current electric power, and a control device that manages the drive device. This innovative design features a first power supply path that powers the control device without going through an ignition switch, and a second path that does. In the event of a failure in the first power supply path, the control device can operate using the second path, allowing the motor to generate an electromagnetic brake. Another notable patent involves an electric power steering device that calculates a steering angle reference yaw rate based on vehicle speed and steering wheel angle. It includes a torque estimation device that estimates the self-aligning torque generated in the turning wheel and determines the required assist torque. If the steering torque sensor is found to be abnormal, the EPS control device can still manage the assist motor using the estimated torque.
Career Highlights
Throughout his career, Kyoji Hamamoto has worked with notable companies such as Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His work has significantly influenced the automotive industry, particularly in the development of advanced steering technologies.
Collaborations
Hamamoto has collaborated with esteemed colleagues, including Hiroaki Horii and Yoshinobu Mukai, contributing to the innovative projects that have shaped modern electric power steering systems.
Conclusion
Kyoji Hamamoto's contributions to electric power steering technology have established him as a key figure in automotive innovation. His patents reflect a commitment to enhancing vehicle safety and performance, making a lasting impact on the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.