Company Filing History:
2 out of 165 
1 out of 21,875 
Years Active: 2016-2018
Title: Shigeki Kawashima: Innovator in Power Transmission Technology
Introduction
Shigeki Kawashima is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of power transmission technology, holding 2 patents that showcase his innovative approach to engineering challenges.
Latest Patents
Kawashima's latest patents include a belt-type continuously variable transmission for working machines. This invention allows for the continuous adjustment of the speed reduction ratio between a driven pulley and a drive pulley. It features a speed reduction ratio regulation mechanism that ensures a minimum speed reduction ratio is maintained. The design incorporates a fixed sheave, a movable sheave that can be displaced axially, and a coil spring that urges the movable sheave toward the fixed sheave. Additionally, the mechanism includes a swing arm that adjusts the allowable range for the movable sheave's axial movement and a regulation drive section that continuously drives the swing arm.
Another significant patent is a power transmitting apparatus designed to suppress rotational vibrations. This apparatus includes a clutch housing that rotates with an input member and features multiple driving-side clutch discs. It also has a clutch member with driven-side clutch discs interleaved with the driving-side discs. The pressure member can move axially to adjust the pressing force on the clutch discs. Furthermore, the apparatus may include slide-suppressing members that apply resistance to the pressure member during rotation.
Career Highlights
Throughout his career, Kawashima has worked with prominent companies such as Kabushiki Kaisha F.C.C. and Honda Motor Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects in the automotive and machinery sectors.
Collaborations
Kawashima has collaborated with talented individuals in his field, including Hajime Yoshimura and Yuji Matsuo. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Shigeki Kawashima's contributions to power transmission technology highlight his innovative spirit and dedication to engineering excellence. His patents reflect a deep understanding of mechanical systems and a commitment to improving performance in working machines.