Location History:
- Katsuta, JA (1977)
- Katsuta, JP (1987 - 1990)
Company Filing History:
Years Active: 1977-1990
Title: Haruyoshi Tsubouchi: Innovator in Turbocharger Technology
Introduction
Haruyoshi Tsubouchi is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of turbocharger technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and performance of exhaust gas systems.
Latest Patents
One of Tsubouchi's latest innovations is the variable-capacity exhaust gas turbine supercharger. This device features a radial turbine and a compressor driven by the turbine. The design includes a scroll portion that is divided into an open scroll chamber and a closed scroll chamber. The open scroll chamber communicates directly with an engine manifold, while the closed scroll chamber connects via a change-over valve. This innovative design aims to optimize the performance of turbocharged engines.
Another significant patent is the turbocharger bearing assembly. This assembly includes floating bushes that journal a rotor shaft, which is interposed between the rotor shaft and a housing assembly. The unique design of the floating bushes, with an inner peripheral portion shorter than the outer, helps to reduce vibration amplitude, minimize frictional loss, and increase resistance to seizure.
Career Highlights
Haruyoshi Tsubouchi is currently employed at Hitachi, Ltd., where he continues to develop advanced technologies in the automotive sector. His work has been instrumental in improving the efficiency of turbocharging systems, which are critical for modern engines.
Collaborations
Tsubouchi collaborates with Masahiro Yoshioka, a fellow innovator in the field. Their combined expertise contributes to the advancement of turbocharger technology and its applications in various industries.
Conclusion
Haruyoshi Tsubouchi's contributions to turbocharger technology exemplify his innovative spirit and dedication to engineering excellence. His patents reflect a commitment to enhancing engine performance and efficiency, making a lasting impact in 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.