Location History:
- Hamamatso, JP (1998)
- Shizuoka, JP (2004)
- Hamamatsu, JP (1991 - 2006)
- Shizuoka-ken, JP (2006 - 2007)
Company Filing History:
13 out of 1,061 
7 out of 279 
1 out of 801 Years Active: 1991-2007
Title: The Innovative Contributions of Chitoshi Saito
Introduction
Chitoshi Saito is a prominent inventor based in Hamamatsu, Japan, recognized for his ingenuity and contributions to marine technology. With an impressive portfolio of 20 patents, Saito continues to advance the field with cutting-edge inventions that enhance the efficiency and functionality of outboard motors.
Latest Patents
Among his recent innovations is a propulsion unit for boats, which integrates a propeller and an internal combustion engine. This unit features a gear switching device that allows users to easily switch between forward drive, reverse drive, and neutral modes. Additionally, it includes a throttle valve and an idle speed control valve to manage the engine's performance effectively. Notably, the control unit regulates the engine to achieve different rotational speeds, based on the propeller's mode, optimizing its operation for various boating conditions.
Another significant patent is the fuel supply system for outboard motors, which includes a unique fuel vapor separator-venting system. This system ensures that fuel vapor is vented through a vapor relief valve, allowing controlled delivery of vapor to the air induction system, dynamically responding to air intake and engine speed. Crucially, the system prevents fuel vapor from venting when the engine is not in operation, enhancing safety and efficiency.
Career Highlights
Chitoshi Saito has also made significant contributions through his collaboration with notable companies, particularly Sanshin Kogyo Co., Ltd. and Yamaha Marine Co., Ltd. His work at these organizations has facilitated advancements in marine technology and established him as a key figure in the industry.
Collaborations
In his journey as an inventor, Saito has worked alongside esteemed colleagues such as Osamu Sakamoto and Masahiko Kato. Their collaborative efforts have further fueled innovation in outboard motor technology, showcasing the power of teamwork in achieving groundbreaking results.
Conclusion
Chitoshi Saito’s noteworthy contributions to marine innovation reflect his dedication and expertise as an inventor. His patents not only enhance the performance of boating equipment but also underscore the importance of innovation in the maritime industry. As technology continues to evolve, Saito’s work will undoubtedly serve as a foundation for future developments.