Location History:
- Chiyoda-ku, JP (2009)
- Fukuoka, JP (2008 - 2010)
- Maebaru, JP (2010)
- Hitachinaka, JP (2013)
- Ohita, JP (2013)
Company Filing History:
Years Active: 2008-2013
Title: Innovations by Yoshinari Kawahara
Introduction
Yoshinari Kawahara is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of electric braking systems, holding a total of six patents. His work focuses on enhancing the efficiency and safety of braking mechanisms in vehicles.
Latest Patents
One of his latest patents is an electric brake that accurately estimates brake pad temperature while ensuring sufficient braking force and response. This innovative electric brake features a disc rotor that rotates with the wheel, an actuator that rectilinearly actuates a piston using an electric motor, and a drive controller that manages the actuator's operation. Additionally, it includes a braking start position detector that identifies the point where the disc rotor contacts the brake pad. The drive controller is designed to update the maximum braking start position as needed, enhancing the system's responsiveness.
Another significant patent is for a motor-driven disk brake system and its control device. This system prevents the pressing member from moving beyond a predetermined position when stopping the motor. By intermittently reducing motor current upon system termination, the system gradually decreases motor displacement, thereby preventing excessive backward movement due to inertia. This design ensures that the piston stops near a standby position, allowing for prompt reactivation of the braking system.
Career Highlights
Yoshinari Kawahara is currently employed at Hitachi, Ltd., where he continues to innovate in the field of braking technology. His work has been instrumental in advancing the safety and performance of motor vehicles.
Collaborations
He has collaborated with notable colleagues, including Atsushi Yokoyama and Satoru Kuragaki, contributing to various projects that enhance braking systems.
Conclusion
Yoshinari Kawahara's contributions to electric braking technology demonstrate his commitment to innovation and safety in the automotive industry. His patents reflect a deep understanding of engineering principles and a dedication to improving vehicle performance.