This inventor holds 2 USPTO granted patents. Top assignee: The Yokohama Rubber Co., Ltd.. Active years: 1982.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1982
Title: Masaru Hirai: Innovator in Rubber Composition and Tire Technology
Introduction
Masaru Hirai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of rubber compositions and tire technology. With a total of 2 patents, his work has had a considerable impact on the industry.
Latest Patents
Hirai's latest patents include a rubber composition employing soft black and a thermosetting resin. This innovative composition features a high hardness rubber with a hardness of at least 92. It comprises 100 parts by weight of rubber, 55 to 95 parts by weight of soft black with an average particle size of 40 to 80 millimicrons, 5 to 30 parts by weight of a thermosetting resin, and a small amount of a curing agent. This high hardness rubber composition is particularly advantageous for use as tire reinforcement in the rim cushion portion or for both the rim cushion portion and bead filler. Another significant patent is for a pneumatic radial-ply tire, which utilizes a rubber portion with a viscoelastic property of loss tangent, tan.delta., of 0.2 or lower and a storage modulus, G, of 120 Kg/cm² or higher. This design reduces rolling resistance without compromising braking performance, control stability, comfort, and wear resistance.
Career Highlights
Masaru Hirai is currently associated with The Yokohama Rubber Co., Ltd. His work has been instrumental in advancing tire technology and improving rubber compositions. His innovative approaches have led to enhanced performance in tire manufacturing.
Collaborations
Hirai has collaborated with notable coworkers, including Masatoshi Kozima and Yukio Tozawa. Their combined expertise has contributed to the successful development of innovative rubber technologies.
Conclusion
Masaru Hirai's contributions to rubber composition and tire technology exemplify the spirit of innovation. His patents reflect a commitment to enhancing performance and efficiency in the industry. His work continues to influence advancements in tire manufacturing and rubber applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile