Company Filing History:
Years Active: 1993
Title: Hisashi Zaima: Innovator in Exhaust Purification Systems
Introduction
Hisashi Zaima is a notable inventor based in Higashihiroshima, Japan. He has made significant contributions to the field of automotive technology, particularly in exhaust purification systems. His innovative work has led to the development of a patented system that enhances engine efficiency and reduces emissions.
Latest Patents
Hisashi Zaima holds a patent for an "Exhaust purification system for multiple cylinder engines." This system features an upstream exhaust gas sensor and a downstream exhaust gas sensor positioned downstream of a catalytic device. Each sensor detects the oxygen concentration in exhaust gases and provides outputs that alternate between a lean state, indicative of a lean air/fuel ratio, and a rich state, indicative of a rich air/fuel ratio. The upstream exhaust sensor is determined to have deteriorated when its output maintains a predetermined correlation with the output from the downstream exhaust sensor while the latter remains constant. This innovative approach significantly improves the monitoring and management of exhaust emissions.
Career Highlights
Zaima is currently employed at Mazda Motor Corporation, where he continues to work on advancements in automotive technology. His expertise in exhaust systems has positioned him as a key player in the company's research and development efforts. His contributions are vital in helping Mazda meet stringent environmental regulations and enhance vehicle performance.
Collaborations
Hisashi Zaima has collaborated with notable colleagues, including Hideki Yamada and Shigeki Yamashita. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies in the automotive sector.
Conclusion
Hisashi Zaima's work in exhaust purification systems exemplifies the importance of innovation in the automotive industry. His patented technology not only contributes to improved engine performance but also plays a crucial role in reducing harmful emissions. His ongoing efforts at Mazda Motor Corporation continue to drive advancements in sustainable automotive solutions.