Location History:
- Isehara, JP (2014)
- Utsunomiya, JP (2019)
Company Filing History:
Years Active: 2014-2019
Title: Kotofumi Yanai: Innovator in Actuator Technology
Introduction
Kotofumi Yanai is a notable inventor based in Utsunomiya, Japan. He has made significant contributions to the field of actuator technology, particularly in applications for internal combustion engines. With a total of 3 patents to his name, Yanai continues to push the boundaries of innovation in automotive systems.
Latest Patents
Yanai's latest patents include an actuator for a link mechanism for internal combustion engines. This invention provides an actuator that prevents size increases in the axial direction. The actuator features a wave gear type speed reducer that reduces the rotation speed of an electric motor and transmits it to the control shaft. The design includes a housing that secures both the electric motor and the speed reducer. The inner gear, made of an iron-based metal material, is fixed to the housing and meshes with a flexible outer gear. Additionally, the actuator incorporates a stopper mechanism to restrict relative rotation when the inner gear and control shaft abut each other.
Another of his recent patents focuses on ensuring sufficient lubrication for the speed reducer in the actuator. This design includes an oil passage within the control shaft that feeds lubricant oil to the speed reducer. An open portion on one end of the control shaft faces the speed reducer and communicates with the oil passage, allowing for effective lubrication.
Career Highlights
Kotofumi Yanai is currently employed at Hitachi Automotive Systems, Ltd., where he applies his expertise in actuator technology. His work has been instrumental in developing innovative solutions that enhance the performance and reliability of automotive systems.
Collaborations
Yanai has collaborated with notable colleagues such as Kishiro Nagai and Junichiro Onigata. Their combined efforts contribute to the advancement of technology in the automotive sector.
Conclusion
Kotofumi Yanai is a distinguished inventor whose work in actuator technology has made a significant impact on the automotive industry. His innovative patents reflect his commitment to enhancing engine performance and efficiency.