Location History:
- Hiroshima, JP (2019)
- Aki-gun, JP (2016 - 2020)
Company Filing History:
Years Active: 2016-2020
Title: Junji Umemura: Innovator in Engine Technology
Introduction
Junji Umemura is a prominent inventor based in Aki-gun, Japan. He has made significant contributions to engine technology, holding a total of 7 patents. His work focuses on enhancing engine performance and efficiency through innovative exhaust and valve systems.
Latest Patents
One of Umemura's latest patents is an engine exhaust device. This device features an exhaust passage that includes both high-speed and low-speed passages. A turbine housing is connected to the exhaust passage downstream from the collector. The exhaust device incorporates a variable valve that opens and closes the first passage. The engine controller plays a crucial role by closing the valve when the engine speed is below a predetermined threshold and opening it when the speed meets or exceeds that threshold. Notably, the controller can also open the valve during fuel cut control, even if the engine speed is low.
Another significant patent is the opening/closing valve structure for an engine. This structure consists of a valve body that regulates the intake or exhaust passage of the engine. It includes a pair of bush members mounted on the axial ends of the valve body and a shaft member that passes through one of the bush members. The design ensures that the shaft member's relative rotation with respect to the valve body is disabled, enhancing the reliability of the valve operation.
Career Highlights
Junji Umemura is currently employed at Mazda Motor Corporation, where he continues to innovate in the field of engine technology. His work has been instrumental in developing advanced systems that improve engine performance and reduce emissions.
Collaborations
Umemura has collaborated with notable colleagues, including Shuhei Tsujita and Einosuke Suekuni. Their combined expertise has contributed to the successful development of various engine technologies.
Conclusion
Junji Umemura's contributions to engine technology through his patents and work at Mazda Motor Corporation highlight his role as a leading inventor in the automotive industry. His innovative solutions continue to shape the future of engine performance and efficiency.
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.