Location History:
- Yokosuka, JP (1984)
- Tokyo, JP (1982 - 1985)
- Ann Arbor, MI (US) (1986)
Company Filing History:
Years Active: 1982-1986
Title: Kohki Sone: Innovator in Automotive Technology
Introduction
Kohki Sone is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of systems that enhance engine performance and efficiency. With a total of 12 patents to his name, Sone's work is recognized for its innovative approach to solving complex engineering challenges.
Latest Patents
One of Sone's latest patents is an air/fuel ratio monitoring system in internal combustion (IC) engines using an oxygen sensor. This system employs a concentration cell type oxygen sensor that features an inner electrode layer, a microscopically porous layer of oxygen ion conductive solid electrolyte, and an outer electrode layer exposed to exhaust gas. The system is designed to exhibit a sharp change in output voltage in response to variations in the air/fuel ratio across the stoichiometric ratio. To ensure accurate monitoring, the system generates a variable reference voltage, allowing for precise comparisons with the sensor output. Additionally, the system includes a control mechanism that adjusts the time constant during voltage smoothing operations, preventing misjudgment of the air/fuel ratio.
Another notable invention by Sone is a control system for motor vehicles. This system determines the optimal parameters for engine operation based on acceleration position and vehicle speed. It operates a continuously variable transmission to adjust the drive ratio, ensuring that the engine functions efficiently according to these parameters.
Career Highlights
Kohki Sone is currently employed at Nissan Motor Company Limited, where he continues to innovate and develop advanced automotive technologies. His work has significantly impacted the automotive industry, contributing to the enhancement of vehicle performance and environmental sustainability.
Collaborations
Throughout his career, Sone has collaborated with talented colleagues, including Kenji Okamura and Tsuyoshi Kitahara. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Kohki Sone is a distinguished inventor whose contributions to automotive technology have paved the way for advancements in engine performance and efficiency. His innovative patents reflect a commitment to excellence and a passion for engineering. Sone's work continues to influence the automotive industry, making him a key figure in the field.