Company Filing History:
2 out of 2 
1 out of 1 
1 out of 110 Years Active: 2014-2021
Title: Shunichi Hayashi: Innovator in Silicone and Polyurethane Technologies
Introduction
Shunichi Hayashi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the fields of silicone and polyurethane technologies. With a total of 3 patents to his name, his work focuses on developing materials that are compatible with human bodies and enhance comfort.
Latest Patents
One of Hayashi's latest patents is a silicone admixture and cured product designed to provide a silicone rubber that is compatible with human bodies. This silicone admixture includes a millable silicone rubber, a silicone high polymer without cross-linking sites, a vulcanizing agent, and rubber reinforcing silica. The resulting cured product exhibits a loss tangent (Tan δ) of 0.3 or more and 0.6 or less at temperatures ranging from 0°C to 50°C. The millable silicone rubber is produced in a wet manner and boasts high tear resistance.
Another significant patent involves a polyurethane foam that offers excellent shape-following properties. This foam is designed for comfort when worn on the human body, both during movement and at rest. It contains toluene diisocyanate and polyether polyol as its main components. The foam has a glass transition temperature between 0°C and 40°C, and it maintains a loss tangent of 0.4 or greater within specific frequency ranges.
Career Highlights
Throughout his career, Shunichi Hayashi has worked with various companies, including Smp Technologies Inc. and Meinan Rubber Industries, Inc. His experience in these organizations has allowed him to refine his expertise in material science and innovation.
Collaborations
Hayashi has collaborated with notable coworkers such as Toshihiro Okamoto and Mitsuru Omoto. Their combined efforts have contributed to advancements in the technologies they have developed.
Conclusion
Shunichi Hayashi is a distinguished inventor whose work in silicone and polyurethane technologies has made a significant impact. His innovative patents reflect his commitment to enhancing materials for human use, ensuring comfort and compatibility.