This inventor holds 10 USPTO granted patents and 2 EPO patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha, Other. Active years: 1980-2004.
Location History:
- Susono, JP (1980 - 2004)
- late of Susono, JP (2004)
Company Filing History:
7 out of 38,774 
1 out of 1,838 
2 out of 834,411 Years Active: 1980-2004
Title: Kohei Igarashi: Innovator in Engine Technology
Introduction
Kohei Igarashi is a notable inventor based in Susono, Japan. He has made significant contributions to the field of engine technology, holding a total of 10 patents. His work focuses on improving engine efficiency and reducing emissions, which is crucial in today's automotive industry.
Latest Patents
Igarashi's latest patents include an exhaust gas purification device for engines. This device features a particulate filter arranged in the exhaust passage. It also incorporates an electric motor that can provide vehicle drive power independently from the engine while generating electric power. This innovative design allows for increased output torque from the engine when the particulate filter is cold, optimizing performance. Another significant patent is for a direct injection type engine that includes a variable speed transmission. This engine utilizes control lines to manage the relationship between engine rotational speed and required torque, enhancing efficiency based on the activation degree of the exhaust gas purification device.
Career Highlights
Throughout his career, Igarashi has worked with prominent companies, including Toyota Motor Corporation. His experience in the automotive industry has allowed him to develop groundbreaking technologies that address both performance and environmental concerns.
Collaborations
Igarashi has collaborated with talented individuals such as Hiroki Murata and Shizuo Sasaki. Their combined expertise has contributed to the successful development of innovative engine technologies.
Conclusion
Kohei Igarashi's contributions to engine technology through his patents and collaborations highlight his role as a leading inventor in the automotive field. His work continues to influence advancements in engine efficiency and emissions reduction.