Keiichi Muratani

Title: Keiichi Muratani: Innovations in Anti-Vibration Rubber

Introduction

Keiichi Muratani is an inventor based in Komaki, Japan, whose work focuses on rubber materials designed for vibration isolation and damping. He is associated with Sumitomo Riko Company Limited and is named on 3 patents.

Latest Patents

Muratani’s recent patent work includes innovations in flame-retardant and anti-vibration rubber compositions.

“Flame-retardant vibration isolation rubber composition and flame-retardant vibration isolation rubber member” describes a composition combining diene rubber, a metal hydroxide, a dihydrazide compound, and carbon black. The invention aims to maintain flame resistance while delivering useful rubber properties, including physical characteristics and dynamic magnification performance.

“Anti-vibration rubber composition and anti vibration rubber” describes a formulation containing natural rubber, or a blend of natural and butadiene rubber, alongside a hydrogenated styrene-butadiene block copolymer, a sulfur-based vulcanizing agent, and zinc monomethacrylate. The specified composition is intended to provide heat resistance, high damping, and a low dynamic-to-static modulus ratio.

Career Highlights

Muratani’s disclosed inventions address material performance challenges in vibration-control applications. His work combines rubber compounds with selected additives to balance properties such as flame retardancy, heat resistance, damping, and mechanical response.

Collaborations

Muratani’s listed coworkers include Seiji Kasai and Fumitomo Itatsu. His company affiliation is Sumitomo Riko Company Limited.

Conclusion

Keiichi Muratani’s patent work at Sumitomo Riko Company Limited centers on improving flame-retardant and anti-vibration rubber materials through carefully designed compositions.