Kiyonori Umetsu

Title: Kiyonori Umetsu: Innovator in Nitrile Rubber Technology

Introduction

Kiyonori Umetsu is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of rubber technology, particularly in the development of nitrile rubber compositions. With a total of 10 patents to his name, Umetsu's work has advanced the capabilities and applications of rubber materials.

Latest Patents

Umetsu's latest patents include innovative formulations such as a nitrile rubber composition that features a nitrile rubber with an α,β-ethylenically unsaturated nitrile monomer unit. This composition is designed to have an iodine value of 100 or less and incorporates an α,β-ethylenically unsaturated carboxylic acid metallic salt along with silane-treated fumed silica and/or calcinated wet silica. Additionally, he has developed a cross-linkable nitrile rubber composition that includes a crosslinking agent, resulting in a highly-saturated cross-linked nitrile rubber with exceptional tensile stress and heat resistance. Another notable patent involves a crosslinkable rubber composition that enhances mechanical strength and reduces compression set.

Career Highlights

Kiyonori Umetsu is currently associated with Zeon Corporation, where he continues to innovate in the field of rubber technology. His work has not only contributed to the advancement of materials science but has also positioned him as a key figure in the industry.

Collaborations

Umetsu has collaborated with notable colleagues such as Hiroyasu Nagamori and Yoshiaki Aimura. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Kiyonori Umetsu's contributions to nitrile rubber technology exemplify his dedication to innovation and excellence. His patents reflect a commitment to enhancing the properties of rubber materials, making a lasting impact on the industry.