Company Filing History:
7 out of 36,713 
2 out of 1,627 
2 out of 19,748 
Years Active: 2005-2019
Title: Yu Yokoyama: Innovator in Engine Technology
Introduction
Yu Yokoyama is a prominent inventor based in Okazaki, Japan. He has made significant contributions to the field of engine technology, holding a total of nine patents. His innovative designs focus on enhancing engine performance through advanced valve mechanisms.
Latest Patents
One of Yokoyama's latest patents is a variable valve mechanism for engines. This invention features two intake valves for each cylinder, driven by selected cams via corresponding rocker arms. Each rocker arm includes a support portion and a pressing portion, with the support portion rockably supported by the cylinder head. The pressing portion is designed to press the stem of the corresponding intake valve. Notably, the support portion of one rocker arm deviates to one side in the cam axial direction, while the other rocker arm deviates to the opposite side. Another patent involves a variable valve mechanism that includes a camshaft and a cam unit. This design features internal spline teeth that mesh with external spline teeth, allowing for efficient operation. An engaging portion is configured to retractably project, while a latching portion ensures stability. The sleeve of the cam unit is designed with a through-hole for lubricating oil supply.
Career Highlights
Yu Yokoyama has worked with notable companies in the automotive industry, including Toyota Motor Corporation and Mitsubishi Motors Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in engine technology.
Collaborations
Yokoyama has collaborated with talented individuals such as Toshiyuki Yano and Yuta Nishimura. These partnerships have fostered a creative environment that has led to the development of advanced technologies.
Conclusion
Yu Yokoyama's contributions to engine technology through his innovative patents and collaborations highlight his role as a leading inventor in the automotive field. His work continues to influence the industry and drive advancements in engine performance.