Hisashi Koba

Title: Hisashi Koba: Innovator in Power-Assisted Steering Systems

Introduction

Hisashi Koba is a notable inventor based in Susono, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of control systems for power-assisted steering.

Latest Patents

Hisashi Koba holds a patent for a "Control apparatus for power-assisted steering system." This innovative control apparatus includes a servo valve associated with a hydraulic power cylinder. It selectively directs the flow of fluid under pressure from a hydraulic source to opposite fluid chambers of the power cylinder. The system responds to the operation of a steering wheel and features an electrically operated control valve. This valve controls the hydraulic pressure for power assist based on a control current. The design allows for a decrease in hydraulic pressure when the steering wheel returns to its neutral position during low-speed travel and an increase during high-speed travel.

Career Highlights

Koba is currently employed at Toyoda Koki Kabushiki Kaisha, where he continues to work on advancements in automotive technology. His expertise in control systems has positioned him as a key figure in the development of innovative steering solutions.

Collaborations

Throughout his career, Koba has collaborated with talented individuals such as Kazumasa Kodama and Kunihiko Eto. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Hisashi Koba's contributions to power-assisted steering systems exemplify the impact of innovation in the automotive industry. His work continues to influence the design and functionality of steering systems, enhancing vehicle performance and safety.