Location History:
- Hamura, JP (2000)
- Hiroshima, JP (2003 - 2004)
- Hanno, JP (2016)
- Tokyo, JP (2000 - 2017)
Company Filing History:
6 out of 14 
3 out of 2,196 
2 out of 18 Years Active: 2000-2017
Title: Kenji Imafuku: Innovator in Two-Stroke Engine Technology
Introduction
Kenji Imafuku is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of engine technology. With a total of nine patents to his name, Imafuku has made remarkable advancements in the design and functionality of two-stroke engines.
Latest Patents
One of Imafuku's latest innovations is the stratified scavenging two-stroke engine, which features an air-leading type design. This engine includes a cylinder member and a crankcase that are joined together, incorporating an intake passage, an exhaust passage, first and second scavenging passages, a communicating portion, and an air passage. The intake and exhaust passages are formed within the cylinder member, while the scavenging passages facilitate efficient air flow. The engine is designed to introduce air for pre-scavenging through a check valve, enhancing its performance and efficiency.
Another notable patent by Imafuku is also a stratified scavenging two-stroke engine. This design includes an intake passage that connects an intake opening on the outer surface of the cylinder member with an intake port inside the cylinder. It also features an exhaust passage for discharging combustion gases and a scavenging passage for supplying pre-scavenging air. The arrangement of the intake and air inlet positions is strategically designed to optimize engine performance.
Career Highlights
Throughout his career, Kenji Imafuku has worked with reputable companies such as Shindaiwa Kogyo Co., Ltd. and Makita Corporation. His experience in these organizations has allowed him to refine his skills and contribute to the development of innovative engine technologies.
Collaborations
Imafuku has collaborated with talented individuals in the field, including Hidenori Hiraki and Mitsunori Watanabe. These partnerships have fostered a creative environment that has led to the successful development of his patented technologies.
Conclusion
Kenji Imafuku's work in the field of two-stroke engine technology showcases his innovative spirit and dedication to engineering excellence. His patents reflect a commitment to improving engine efficiency and performance, making him a notable figure in the world of inventions.