Kenji Yukishima

Title: Kenji Yukishima: Innovator in Marine Propulsion Technology

Introduction

Kenji Yukishima is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of marine propulsion technology, holding a total of seven patents. His innovative designs have advanced the efficiency and functionality of outboard motors and marine propulsion devices.

Latest Patents

One of Yukishima's latest patents is for an outboard motor that features a drive shaft, a coupling to connect the first and second shafts of the drive shaft, and a transmission that includes a dog clutch. This design allows for the effective transmission of rotation from the drive shaft to the propeller shaft. The coupling consists of a first portion attached to the first shaft, a second portion attached to the second shaft, and a damper. The first portion includes first claws arranged along the rotation direction of the drive shaft, while the second portion includes second claws positioned between adjacent first claws. The damper incorporates an elastic portion that is interposed between the first and second claws, enhancing the motor's performance.

Another notable patent is for a marine propulsion device that includes an engine, an exhaust pipe for exhaust gas, and a cooling water supply passage. This design allows cooling water to flow into the exhaust pipe, providing effective cooling for the engine while ensuring optimal performance.

Career Highlights

Throughout his career, Kenji Yukishima has worked with esteemed companies such as Yamaha Motor Co., Ltd. and Sanshin Kogyo Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in marine technology.

Collaborations

Yukishima has collaborated with notable professionals in the field, including Kimitaka Saruwatari and Hiroyuki Suzuki. These partnerships have fostered a creative environment that has led to the development of advanced marine propulsion solutions.

Conclusion

Kenji Yukishima's contributions to marine propulsion technology through his innovative patents and collaborations highlight his role as a leading inventor in the industry. His work continues to influence the design and functionality of marine engines and propulsion systems.