This inventor holds 3 USPTO granted patents. Top assignees: Sanshin Kogyo Kabushiki Kaisha, Yamaha Hatsudoki Kabushiki Kaisha. Active years: 2002-2010.
Company Filing History:
2 out of 1,061 
1 out of 4,350 
Years Active: 2002-2010
Title: Keiya Funahashi: Innovator in Marine Engine Technology
Introduction
Keiya Funahashi is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of marine engine technology, holding a total of 3 patents. His innovative designs focus on enhancing the performance and efficiency of watercraft engines.
Latest Patents
One of Funahashi's latest patents is for an engine water jacket designed for water planing boats. This invention features a water jacket integrated into the main body of the engine, which is supplied with cooling water to maintain optimal engine temperatures. The design includes a ceiling that is higher at the rear than at the front, along with a water drain positioned at the highest point to effectively discharge cooling water. Additionally, the water jacket incorporates a head bolt fastening portion and a rib that corresponds to this fastening area, ensuring structural integrity.
Another significant patent by Funahashi is an oil pump construction for watercraft engines. This lubrication system utilizes an oil pump assembly driven by the crankshaft, which can be mounted in various positions to maintain a low center of gravity for the engine. The design may also include a bearing situated between the valvetrain drive gear and the output drive gear, further enhancing the engine's performance.
Career Highlights
Throughout his career, Funahashi has worked with prominent companies in the marine industry, including Sanshin Kogyo Kabushiki Kaisha and Yamaha Hatsudoki Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in engine technology.
Collaborations
Funahashi has collaborated with talented individuals such as Noboru Suganuma and Masaki Takegami. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field of marine engines.
Conclusion
Keiya Funahashi's contributions to marine engine technology through his patents and collaborations highlight his role as an influential inventor. His innovative designs continue to shape the future of watercraft engines, demonstrating the importance of creativity and engineering in this field.