This inventor holds 3 USPTO granted patents. Top assignee: Aisin Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Yoshiaki Yamakawa: Innovator in Valve Control Technology
Introduction
Yoshiaki Yamakawa is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of valve control technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of internal combustion engines.
Latest Patents
Yamakawa's latest patents include a "Valve Open and Close Period Control Device" and a "Valve Opening and Closing Timing Control Device." The valve open and close period control device features a driving-side rotor that synchronizes with the crankshaft of an internal combustion engine. It also includes a driven-side rotor that rotates with the camshaft, along with a phase adjustment mechanism for setting the relative rotation phase between the two rotors. This device is designed to optimize the lubrication process, reducing the discharge amount of lubricating oil.
The valve opening and closing timing control device consists of a drive-side rotating body that also rotates synchronously with the crankshaft. It incorporates a driven-side rotating body that works with the camshaft to control valve operations. This device features a phase adjustment mechanism with multiple gears to reduce the driving rotational force of an electric motor, allowing for precise control of the valve timing.
Career Highlights
Yamakawa is currently employed at Aisin Corporation, a leading company in the automotive industry. His innovative work has contributed to advancements in engine technology, making significant impacts on performance and efficiency.
Collaborations
Yamakawa collaborates with talented coworkers such as Shuhei Sugiyama and Shoichi Yoshino. Together, they work on developing cutting-edge technologies that enhance engine performance.
Conclusion
Yoshiaki Yamakawa is a prominent inventor whose work in valve control technology has paved the way for advancements in internal combustion engines. His contributions continue to influence the automotive industry positively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile