Shigeru Igarashi is a prominent inventor based in Hiratsuka, Japan. He has made significant contributions to the field of automotive rubber technology, holding a total of 7 patents. His innovative work focuses on enhancing the performance and durability of automotive components.

Latest Patents

One of Igarashi's latest patents is for a power steering hose. This invention features high-performance hoses characterized by enhanced heat resistance, which leads to a prolonged service life, making them suitable for use in automobile power steering units. The inner tubes of these hoses are formed from hydrogenated acrylonitrile/butadiene copolymer rubbers of a selected composition. Additionally, the inner tubes may have a double-layered construction, consisting of an inner layer of hydrogenated acrylonitrile/butadiene copolymer rubber and an outer layer made from a rubber composition that includes specific amounts of selected sulfurs, organic peroxide, and triazine compounds combined with selected sulfur-curable base rubbers.

Another notable patent involves a method of hose-metal fitting attachment. This invention discloses rubber compositions designed for the integral attachment of polymeric and metallic materials. The improved bondability is attributed to a selected base rubber blended with a specific class of inorganic or organic fillers, silane compounds, and vulcanizing agents, resulting in a finished composition with a specified range of Mooney viscosities. The patent also describes a method for connecting hose-metal fittings using this composition, which greatly enhances gas- and oil-impermeability characteristics.

Career Highlights

Shigeru Igarashi is currently employed at The Yokohama Rubber Co., Ltd., where he continues to innovate and develop advanced rubber technologies for the automotive industry. His work has significantly impacted the performance and reliability of automotive components.

Collaborations

Throughout his career, Igarashi has collaborated with notable colleagues, including Osamu Ozawa and Tetsu Kitami. These collaborations have contributed to the advancement of automotive rubber technology and the successful development of various innovative products.

Conclusion

Shigeru Igarashi is a distinguished inventor whose contributions to automotive rubber technology have led to significant advancements in the industry. His innovative patents reflect his commitment to enhancing the performance and durability of automotive components.

Profile summary based on public USPTO records.

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