This inventor holds 4 USPTO granted patents. Top assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jukogyo Kabushiki Kaisha. Active years: 1989-2000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kanagawa, JP (1994)
- Yokohama, JP (1989 - 2000)
Company Filing History:
4 out of 1,650 
1 out of 1,326 
Years Active: 1989-2000
Title: Yasuaki Kumagai: Innovator in Exhaust Gas Purification
Introduction
Yasuaki Kumagai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of exhaust gas purification, holding a total of 4 patents. His work focuses on improving the efficiency and effectiveness of systems designed to reduce harmful emissions from internal combustion engines.
Latest Patents
Kumagai's latest patents include innovative technologies aimed at enhancing exhaust gas treatment. One of his patents describes an apparatus and method for removing particulates in exhaust gas. This invention utilizes two filters in the exhaust path of an internal combustion engine, which collect particulates and are alternately refreshed. The system determines which filter has a larger accumulation of particulates and refreshes them accordingly, ensuring both filters operate within a tolerable temperature range.
Another significant patent is for a zeolite converter for diesel engines. This exhaust gas purifier is strategically positioned in the inlet system supplying air to the combustion chamber. It includes a hydrocarbon supply source and a zeolite catalyst converter, which uses hydrocarbon as a reduction agent to effectively crack nitrogen oxides (NOx) in the exhaust gas, thereby purifying it.
Career Highlights
Throughout his career, Yasuaki Kumagai has worked with prominent companies, including Mitsubishi Motors Corporation and Mitsubishi Heavy Industries. His experience in these organizations has allowed him to develop and refine his innovative ideas in exhaust gas purification.
Collaborations
Kumagai has collaborated with notable colleagues such as Yoichiro Kono and Hiroshi Ogita. Their combined expertise has contributed to advancements in the field of emissions control.
Conclusion
Yasuaki Kumagai's contributions to exhaust gas purification demonstrate his commitment to innovation and environmental sustainability. His patents reflect a deep understanding of the challenges associated with emissions from internal combustion engines, and his work continues to influence the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile