Location History:
- Tokyo, JA (1976 - 1978)
- Tokyo, JP (1980 - 1982)
Company Filing History:
12 out of 10,092 
1 out of 8 Years Active: 1976-1982
Title: **Masahiko Iiyama: Innovator in Internal Combustion Engine Technology**
Introduction
Masahiko Iiyama is a prominent inventor based in Tokyo, Japan, known for his significant contributions to engine technology. With a total of 13 patents to his name, his innovations have greatly influenced the field of internal combustion engines, particularly through advancements in carburetor design.
Latest Patents
One of Iiyama's latest innovations is a sophisticated carburetor designed for multi-cylinder internal combustion engines. This carburetor features a main combustion chamber situated above the piston in each cylinder, along with a sub-combustion chamber that communicates with the main chamber via a torch nozzle. A critical characteristic of this design is its dual intake passages, which allow for the introduction of both a comparatively lean mixture to the main combustion chamber and a comparatively rich mixture to the sub-combustion chamber. The carburetor incorporates a single throttle valve shaft that extends across these passages, featuring a main throttle valve and a sub-throttle valve. Both valves are strategically designed to operate at different angles, allowing for precise control of the air mixture based on engine load conditions. This unique design ensures that the weight ratio of air introduced into the sub-combustion chamber relative to the main combustion chamber can be effectively managed, optimizing engine performance.
Career Highlights
Iiyama has had a noteworthy career, working at renowned companies such as Honda Motor Co., Ltd. Throughout his tenure, he focused on developing innovative solutions to enhance engine efficiency and performance, contributing significantly to the automotive industry.
Collaborations
Masahiko Iiyama has collaborated with esteemed colleagues in his field, including Toshio Nomura and Yoshiaki Hirosawa. These collaborations have fostered an environment of shared knowledge and expertise, enabling the development of groundbreaking technologies.
Conclusion
Masahiko Iiyama's innovative approach to carburetor design signals a new era in internal combustion engine technology. His patents reflect a deep understanding of engineering principles and signal promising advancements for future automotive applications. With his continued contributions, Iiyama remains a pivotal figure in the innovation landscape of the automotive industry.
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.