Location History:
- Hino-shi, Tokyo JP (2001)
- Hino, JP (2001 - 2004)
Company Filing History:
1 out of 63 
2 out of 832,912 Years Active: 2001-2004
Title: The Innovative Contributions of Yoshihide Maeda
Introduction
Yoshihide Maeda is a notable inventor based in Hino, Japan, recognized for his significant contributions to the field of engineering through his innovative inventions. With a total of three patents to his name, Maeda has demonstrated a remarkable ability to design and improve mechanisms that enhance the efficiency of engine systems.
Latest Patents
Among his most notable inventions is a Valve Opening Mechanism. This clever design features an actuator pin equipped with a stop that allows for free vertical movement in relation to the top of a rocker arm. The mechanism is ingeniously restrained by the tip of the rocker arm at a specified uppermost position and effectively opens the engine valves by pushing downward during the exhaust stroke, optimizing engine performance.
Another significant patent is the Exhaust Gas Recirculation Device. This innovative apparatus involves an exhaust gas recirculation master piston that activates to open the exhaust valve on the same cylinder. By using a slave piston, exhaust gas is recirculated into the combustion chamber from the exhaust port due to pressure differences. This design not only lowers the combustion temperature, helping to reduce NOx emissions, but also allows for selective maintenance and release of oil pressure in two types of passages, functioning effectively as a compression pressure-release engine brake.
Career Highlights
Throughout his career, Yoshihide Maeda has worked with various companies, including Diesel Engine Retarders, Inc. His work has been pivotal in developing advanced engine technologies that contribute to more efficient and environmentally friendly systems.
Collaborations
Maeda has collaborated with talented colleagues such as Zdenek S. Meistrick and Vincent Pitzi, working together to bring innovative ideas to fruition. Their joint efforts have fostered advancements in engineering and demonstrated the importance of teamwork in the invention process.
Conclusion
Yoshihide Maeda's inventive spirit and comprehensive understanding of engine mechanisms have led him to develop critical patents that enhance performance and reduce emissions. His contributions exemplify the impact of innovation in engineering, serving as an inspiration for future inventors and engineers in the field.