Company Filing History:
2 out of 38 
1 out of 832,912 Years Active: 2001-2003
Title: Innovations of Junichi Hirayama
Introduction
Junichi Hirayama is a notable inventor based in Higashimatsuyama, Japan. He has made significant contributions to the field of engineering, particularly in the development of master cylinder mechanisms. With a total of 3 patents to his name, Hirayama's work showcases his innovative approach to solving complex engineering challenges.
Latest Patents
Hirayama's latest patents include a master cylinder that features a throttle valve mechanism. This mechanism is designed to throttle the flow of working fluid from a pressure delivering chamber to a reservoir during the operation of the piston. Additionally, it allows the working fluid to flow back from the reservoir to the pressure delivering chamber by opening a valve during the piston’s return. The design also incorporates a relief valve function that permits a large quantity of working fluid to flow from the pressure delivering chamber to the reservoir, enhancing the responsiveness of the system during fluctuations in fluid pressure.
Another patent focuses on reducing the work cost of a piston and decreasing the resistance of flow in the communicating passage between a pressure chamber and a reservoir. This invention features a small outside diameter portion on the periphery of the piston, along with a sleeve fitted onto this portion. The design includes radial and axial passage grooves that facilitate efficient communication between the pressure chamber and the reservoir, ultimately improving the overall performance of the master cylinder.
Career Highlights
Throughout his career, Junichi Hirayama has worked with prominent companies, including Bosch Braking Systems Co. Ltd. His experience in the industry has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
Hirayama has collaborated with talented individuals such as Hiroyuki Oka and Michio Kobayashi. These partnerships have played a crucial role in the development of his inventions and have fostered a collaborative environment for innovation.
Conclusion
Junichi Hirayama's contributions to the field of engineering, particularly through his innovative master cylinder designs, highlight his expertise and commitment to advancing technology. His patents reflect a deep understanding of fluid dynamics and mechanical systems, making him a valuable figure in the world of inventions.