Location History:
- Hamamatsu, JP (1996)
- Shizuoka-ken, JP (1998)
- Shizuoka, JP (1998 - 2002)
- Iwata, JP (1998 - 2003)
Company Filing History:
5 out of 4,248 
2 out of 1,061 Years Active: 1996-2003
Title: Innovations by Keiichi Hiki
Introduction
Keiichi Hiki is a notable inventor based in Iwata, Japan, recognized for his contributions to marine engine technology. With a total of seven patents to his name, Hiki has made significant advancements in fuel control systems for watercraft and two-cycle engines. His work reflects a commitment to enhancing engine performance and safety.
Latest Patents
One of Hiki's latest patents is a fuel control system for marine engines. This innovative system includes a controller that continues the operation of an electric fuel pump for a predetermined time after the engine has been stopped. Additionally, the control system may stop the fuel pump if the lanyard switch is tripped or if the watercraft is capsized, ensuring safety in critical situations. Another significant patent is for a control system for two-cycle engines. This system features an exhaust control valve that opens and closes an exhaust port, with a controller designed to adjust the effective cross-sectional area of the exhaust port based on engine speed. The method for controlling the two-cycle engine involves determining engine speed, adjusting the exhaust valve position, and calculating the fuel injection amount accordingly.
Career Highlights
Throughout his career, Keiichi Hiki has worked with prominent companies in the industry, including Yamaha Motor Co., Ltd. and Sanshin Kogyo Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to the advancement of engine technology.
Collaborations
Hiki has collaborated with talented individuals such as Ryoichi Nakase and Shigeyuki Ozawa. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies in the field of marine engines.
Conclusion
Keiichi Hiki's contributions to engine technology through his patents and collaborations highlight his role as an influential inventor in the industry. His work continues to impact the performance and safety of marine engines, showcasing the importance of innovation in engineering.