Location History:
- Toyota, JA (1977)
- Toyota, JP (1990)
Company Filing History:
1 out of 36,771 
1 out of 1,838 Years Active: 1977-1990
Title: The Innovations of Satomu Nishimura
Introduction
Satomu Nishimura is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of internal combustion engines, holding 2 patents that showcase his innovative spirit and technical expertise.
Latest Patents
Nishimura's latest patents include an internal combustion engine with a device for warning of malfunction. This invention features a warning system for an air-fuel ratio control system in an electronically controlled internal combustion engine. The system corrects the basic fuel injection amount using a feedback correction factor determined by a signal from an air-fuel ratio sensor located in the exhaust pipe. It detects the amplitude of the feedback correction factor caused by engine acceleration, providing a warning when the amplitude exceeds a predetermined value. This allows for the detection of malfunctions in the air-fuel ratio system occurring in one cylinder. Additionally, in a double O₂ sensor system, a sub-feedback loop corrects the feedback correction factor based on a signal from the second O₂ sensor. The sub-feedback operation is halted when the amplitude exceeds a predetermined value, enabling quick and precise malfunction detection.
Another significant patent is for an improved exhaust gas control valve. This valve utilizes a vacuum-actuated, valve-closure member to control the flow of exhaust gas into a gas chamber located between an inlet port and an outlet port. The improvement involves a corrosion-resistant metal liner that covers the inside walls of the gas chamber, as well as the inlet and outlet ports exposed to exhaust gas.
Career Highlights
Satomu Nishimura has worked with prominent companies such as Toyota Motor Corporation and Toyota Jidosha Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas in automotive technology.
Collaborations
Throughout his career, Nishimura has collaborated with talented individuals, including Tatsuyoshi Kamohara and Tadashi Sugino. These partnerships have contributed to the successful development of his inventions.
Conclusion
Satomu Nishimura's contributions to the field of internal combustion engines reflect his dedication to innovation and excellence. His patents demonstrate a commitment to improving engine performance and efficiency, making a lasting impact in the automotive industry.