This inventor holds 4 USPTO granted patents. Top assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha, Nippondenso Co., Ltd.. Active years: 1978-1987.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 1,838 
1 out of 5,207 
1 out of 3,252 
Years Active: 1978-1987
Title: Isamu Ota: Innovator in Fuel Vapor Control and Exhaust Gas Recirculation
Introduction
Isamu Ota is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of automotive technology, particularly in fuel vapor control and exhaust gas recirculation systems. With a total of 4 patents to his name, Ota's innovations reflect his commitment to improving engine efficiency and reducing emissions.
Latest Patents
One of Ota's latest patents is a fuel vapor control device. This device features a valve that opens and closes a passage connecting a carburetor and a charcoal canister based on predetermined temperature conditions. A first coil spring made from a shape memory effect alloy is designed to urge the valve to open the passage when temperatures rise. Conversely, a second coil spring works to close the passage. Additionally, a solenoid is included to press an armature against the valve, ensuring it remains closed when the engine is running. The solenoid heats the first coil spring to generate spring force while the engine operates. When the engine is turned off, the solenoid deactivates, allowing the first spring's force to open the passage until the temperature drops below the predetermined level.
Another significant patent by Ota is an exhaust gas recirculation apparatus for internal combustion engines. This system is characterized by a back pressure control type of exhaust gas recirculation. It includes a vacuum line that connects an EGR port with a vacuum-operated flow control valve. A modulator valve is also present, featuring a control chamber that opens to the vacuum line in response to the pressure of recirculated exhaust gas. This setup effectively controls the vacuum signal level of the flow control valve.
Career Highlights
Isamu Ota has worked with Toyota Motor Corporation, where he has contributed to various innovative projects. His experience at this leading automotive company has allowed him to develop and refine his inventions, making a lasting impact on the industry.
Collaborations
Throughout his career, Ota has collaborated with notable colleagues, including Toshihito Abe and Yutaka Hasegawa. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Isamu Ota's work in fuel vapor control and exhaust gas recirculation exemplifies his dedication to innovation in the automotive sector. His patents
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile