This inventor holds 3 USPTO granted patents. Top assignee: Honda Giken Kogyo Kabushiki Kaisha. Active years: 2001-2002.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2001-2002
Title: Innovations of Yoshihiko Kumagai
Introduction
Yoshihiko Kumagai is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of engine technology, holding a total of 3 patents. His work focuses on enhancing engine efficiency and functionality through innovative valve systems.
Latest Patents
Kumagai's latest patents include a valve system for an engine and an engine with a valve resting function. The valve system for an engine features a valve resting mechanism that is strategically placed between an engine valve and a valve lifter supported by a cylinder head. This mechanism allows the engine valve to enter a resting state, utilizing a pin holder with a sliding hole and an insertion hole for the valve stem. The design incorporates a slide pin that is influenced by hydraulic and spring forces, ensuring optimal performance.
The engine with a valve resting function is designed to rest at least one of the intake valves during specific operational regions. This innovation prevents the flow of remaining fuel into the combustion chamber when the rested intake valve is opened or closed. By doing so, it helps maintain engine output and reduces unburned hydrocarbons. A communication passage in the cylinder head facilitates the flow of the fuel-air mixture, enhancing the engine's overall efficiency.
Career Highlights
Kumagai is associated with Honda Giken Kogyo Kabushiki Kaisha, a leading automotive manufacturer known for its commitment to innovation and quality. His work at Honda has allowed him to contribute to advancements in engine technology, making a significant impact on the automotive industry.
Collaborations
Throughout his career, Kumagai has collaborated with talented individuals such as Takaaki Tsukui and Takashi Ichimura. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Yoshihiko Kumagai's contributions to engine technology through his innovative patents demonstrate his expertise and commitment to enhancing automotive performance. His work continues to influence the industry, paving the way for future advancements in engine design and functionality.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile