Location History:
- Shizuoka-ken, JP (2007 - 2008)
- Shizuoka, JP (2010 - 2013)
Company Filing History:
6 out of 4,242 
2 out of 279 
Years Active: 2007-2013
Title: Hirotoshi Yamauchi: Innovator in Marine Technology
Introduction
Hirotoshi Yamauchi is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of marine technology, particularly in the development of outboard motors. With a total of eight patents to his name, Yamauchi's innovations have greatly enhanced the performance and durability of marine propulsion systems.
Latest Patents
One of his latest patents is for an outboard motor that features an engine generating power and a transmission device designed to change the speed of rotation. This innovative transmission includes a planetary gear type mechanism that allows for smooth shifting between multiple speed positions. The design minimizes the load typically caused by gear engagements, resulting in improved durability. Another notable patent is for a lubricator in the power transmission system of a marine propulsion unit. This system incorporates wet-type multi-plate clutches that enhance the efficiency of the transmission while ensuring proper lubrication through a well-designed oil reservoir.
Career Highlights
Yamauchi has worked with notable companies such as Yamaha Motor Co., Ltd. and Yamaha Marine Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in marine technology.
Collaborations
Throughout his career, Yamauchi has collaborated with talented individuals, including Yoshihiko Okabe and Yoshihito Fukuoka. These partnerships have fostered a creative environment that has led to innovative solutions in the marine industry.
Conclusion
Hirotoshi Yamauchi's contributions to marine technology through his patents and collaborations have made a lasting impact on the industry. His work continues to inspire future innovations in outboard motor design and marine propulsion systems.