Company Filing History:
3 out of 5,119 
1 out of 1,432 
Years Active: 1998-2000
Title: **Innovative Contributions of Koji Yamauchi in Tire Technology**
Introduction
Koji Yamauchi, based in Tokyo, Japan, is a renowned inventor with a noteworthy portfolio of patents. With a total of three patents to his name, Yamauchi has made significant strides in the field of tire technology, particularly in developing pneumatic tires that enhance vehicle performance under various conditions.
Latest Patents
Yamauchi's latest patents focus on advanced pneumatic tire designs featuring foamed rubber layers. One highlighted patent describes a pneumatic tire that incorporates a foamed rubber layer composed of closed cells. These cells have an average diameter ranging from approximately 1 micrometer to 120 micrometers, contributing to the tire's overall performance. The foamed rubber layer boasts an expansion ratio between 1% and 100%. The innovative rubber composition includes diene-type rubber and silica, with silica comprising 10 to 80 parts by weight based on 100 parts of diene-type rubber. This patented design is engineered to provide excellent traction, braking capabilities, and controllability on snowy, icy, and wet road surfaces.
Career Highlights
Throughout his career, Koji Yamauchi has collaborated with some prominent companies, including Bridgestone Corporation and Ube Industries, Inc. These associations have facilitated the development of cutting-edge tire technologies, further establishing Yamauchi as a significant contributor to the automotive industry.
Collaborations
In his pursuit of innovation, Yamauchi has worked alongside notable colleagues, such as Nobuyuki Okamura and Kojiro Yamaguchi. Their collective expertise has played a crucial role in advancing tire technology and enhancing safety features across various vehicle types.
Conclusion
Koji Yamauchi's impressive patent portfolio and innovative mindset have positioned him as a key figure in tire technology. His developments in pneumatic tires with foamed rubber layers not only enhance vehicle performance but also contribute to safer driving experiences in challenging conditions. As he continues to push the boundaries of innovation, Yamauchi's contributions will undoubtedly leave a lasting impact on the industry.