Zenichiro Kumita

Title: Zenichiro Kumita: Innovator in Torque Converter Technology

Introduction

Zenichiro Kumita is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of automotive engineering, particularly in the area of torque converters. His innovative approach has led to the development of a unique process for measuring unbalance in torque converters.

Latest Patents

Kumita holds a patent for a process that measures the unbalance of a torque converter. This process involves assembling the outer and inner members of the torque converter and filling the outer member with oil to simulate actual service conditions. During this state, both members are rotated together. When the rotational speed reaches a specific measuring speed, multiple measurements are taken while varying the phase between the outer and inner members. This method effectively isolates the unbalance caused by the outer member, allowing for accurate detection and correction. A balance weight is then cut from a metal tape and attached to the outer periphery of the outer member using spot-welding or adhesive bonding.

Career Highlights

Kumita is associated with Honda Giken Kogyo Kabushiki Kaisha, a leading automotive manufacturer. His work has been instrumental in enhancing the performance and reliability of torque converters in vehicles. His innovative solutions have contributed to the advancement of automotive technology.

Collaborations

Kumita has collaborated with notable colleagues such as Tokio Kikuchi and Satoru Ichihashi. Their combined expertise has fostered a creative environment that encourages innovation and problem-solving in automotive engineering.

Conclusion

Zenichiro Kumita's contributions to torque converter technology exemplify the spirit of innovation in the automotive industry. His patented process for measuring unbalance has paved the way for improved performance and reliability in vehicles.