Company Filing History:
7 out of 4,254 
2 out of 47 
Years Active: 1987-1994
Title: Wataru Fuchigami: Innovator in Engine Technology
Introduction
Wataru Fuchigami is a notable inventor based in Iwata, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of nine patents. His innovative designs focus on enhancing engine performance and efficiency.
Latest Patents
One of Fuchigami's latest patents is for a single overhead cam multi-valve engine. This invention features several embodiments of internal combustion engines that utilize at least five valves, comprising three intake and two exhaust valves, all operated by a single camshaft. The design of the intake valves is optimized to create a smooth combustion chamber configuration by minimizing the angle differences between the valves. The arrangement of the valves and rocker arms allows for varying degrees of lift. Notably, all intake valves share the same stem length. One rocker arm operates a single valve, while another rocker arm operates two differently configured valves to achieve the desired lift. Additionally, the engine incorporates a staged intake system with a single intake passage that extends perpendicular to the cylinder bore axis, serving one intake valve, and a siamese intake passage for the other intake valves.
Career Highlights
Fuchigami has worked with prominent companies in the automotive industry, including Yamaha Hatsudoki Kabushiki Kaisha and Yamaha Motor Company Ltd. His experience in these organizations has contributed to his expertise in engine technology and innovation.
Collaborations
Throughout his career, Fuchigami has collaborated with talented individuals such as Tadashi Sakurai and Kenichi Nonogawa. These partnerships have fostered a creative environment that has led to groundbreaking advancements in engine design.
Conclusion
Wataru Fuchigami's contributions to engine technology through his patents and collaborations highlight his role as a significant innovator in the automotive field. His work continues to influence the development of more efficient and effective internal combustion engines.