Hiroki Sugiura

Title: Innovations by Hiroki Sugiura

Introduction

Hiroki Sugiura is a notable inventor based in Hiratsuka, Japan. He has made significant contributions to the field of tire technology, holding a total of four patents. His work focuses on enhancing the performance and durability of pneumatic tires.

Latest Patents

One of Hiroki Sugiura's latest patents involves a pneumatic tire that features a tread rubber with a groove depth at the shoulder portion of 10 mm or greater. The rubber composition of this tread includes 60 to 70 parts by mass of carbon black, 0.5 parts or greater by mass of sulfur, and a vulcanization accelerator per 100 parts by mass of diene rubber. The diene rubber consists of 50 to 70 mass % of styrene-butadiene rubber, 20 to 30 mass % of butadiene rubber, and 10 to 30 mass % of natural rubber. The average glass transition temperature of the diene rubber is -65°C or lower. Additionally, the tread rubber has a hardness of 65 to 70 at 20°C.

Another patent focuses on a rubber composition for a tire tread, which contains a diene rubber, silica, and a cured product. The silica content ranges from 20 to 100 parts by mass per 100 parts by mass of the diene rubber, while the cured product content is from 0.3 to 30 parts by mass. The diene rubber includes natural rubber and a modified butadiene rubber with a polyorganosiloxane group at the terminal. The natural rubber content in the diene rubber is from 30 to 90 mass %, and the modified butadiene rubber content is from 10 to 70 mass %. The cured product is obtained by curing a crosslinkable oligomer or polymer that is incompatible with the diene rubber.

Career Highlights

Hiroki Sugiura is currently employed at The Yokohama Rubber Co., Ltd., where he continues to innovate in tire technology. His expertise and dedication have led to advancements that improve tire performance and safety.

Collaborations

Hiroki has collaborated with notable coworkers, including Makoto Ashiura and Masaki Sato. Their teamwork has contributed to the successful development of innovative tire solutions.

Conclusion

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