Location History:
- Miyoshi, JP (1986)
- Hiroshima, JP (1993 - 1995)
Company Filing History:
Years Active: 1986-1995
Title: Masatoshi Shoji: Innovator in Engine Technology
Introduction
Masatoshi Shoji is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of engine technology, holding three patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of his latest inventions is a supercharged engine that includes a supercharger and an intercooler positioned downstream of the supercharger. This engine features a geometric compression ratio equal to or higher than 8.5. The supercharger is an internal compression type mechanical supercharger with a pressure ratio exceeding 1.8. The intake valve closing timing of the engine supercharger is set between 50 to 100 degrees in crank angle from bottom dead center. Additionally, the overlapping period during which both intake and exhaust valves open is equal to or below 17 degrees in crank angle. The intake valve closing timing is defined as the moment when valve lift is equal to or less than 1 millimeter, while the overlapping period is measured based on a valve lift of zero.
Another significant patent is for an intake system designed for a multiple-cylinder engine. This system comprises a plurality of primary discrete intake passages and secondary discrete intake passages. Each pair of primary and secondary passages communicates with one of the engine's cylinders. Both types of passages are straight, and the primary discrete intake passage is equipped with a primary valve member that can be selectively positioned between closed and open states. The secondary discrete intake passage also features a secondary valve member that operates similarly.
Career Highlights
Masatoshi Shoji is currently employed at Mazda Motor Corporation, where he applies his innovative ideas to enhance engine performance and efficiency. His work has contributed to the advancement of automotive technology, particularly in the area of supercharged engines.
Collaborations
He has collaborated with notable colleagues such as Tsuyoshi Goto and Kouichi Hatamura, working together to push the boundaries of engine design and functionality.
Conclusion
Masatoshi Shoji's contributions to engine technology through his patents reflect his dedication to innovation and excellence in the automotive industry. His work continues to influence the development of more efficient and powerful engines.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.