Hiroyuki Ishitobi

Title: Hiroyuki Ishitobi: Innovator in Rubber Composition and Pneumatic Tire Technology

Introduction

Hiroyuki Ishitobi is a notable inventor based in Awa, Japan. He has made significant contributions to the field of rubber technology, particularly in the development of rubber compositions and pneumatic tires. With a total of 2 patents to his name, Ishitobi's work has had a considerable impact on the industry.

Latest Patents

Ishitobi's latest patents focus on innovative rubber compositions. The first patent describes a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A with a specific guanidine structure. This composition improves both a high elastic modulus and a low tan δ. The invention also includes a pneumatic tire utilizing this rubber composition. The second patent similarly outlines a rubber composition with an amidine structure, enhancing the same properties and applications.

Career Highlights

Throughout his career, Hiroyuki Ishitobi has worked with prominent companies such as Bridgestone Corporation and Otsuka Chemical Co., Ltd. His experience in these organizations has allowed him to refine his expertise in rubber technology and innovation.

Collaborations

Ishitobi has collaborated with notable coworkers, including Noriaki Yukimura and Takahiro Yoshizawa. These partnerships have contributed to the advancement of his research and development efforts.

Conclusion

Hiroyuki Ishitobi's contributions to rubber composition and pneumatic tire technology demonstrate his innovative spirit and dedication to the field. His patents reflect a commitment to improving material properties and applications, solidifying his status as a key inventor in the industry.