Company Filing History:
Years Active: 1992
Title: The Innovations of Tomiharu Amitani
Introduction
Tomiharu Amitani is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of chemistry, particularly in the production of high purity bis(4-hydroxyphenyl)sulfides. His work has led to advancements in heat-sensitive recording materials, showcasing his innovative approach to chemical processes.
Latest Patents
Tomiharu Amitani holds 2 patents that focus on the process of producing high purity bis(4-hydroxyphenyl)sulfides. His latest patents detail a method that involves reacting phenols with sulfur dichloride in nonpolar organic solvents. The process includes removing the nonpolar organic solvent after the reaction, adding a polar organic solvent to the mixture at elevated temperatures, and crystallizing the high purity bis(4-hydroxyphenyl)sulfides. This innovative method has led to the development of high-performance heat-sensitive recording materials that utilize high purity bis(4-hydroxy-3-methylphenyl)sulfide as a developer, achieving a melting point between 123.9°C and 124.9°C.
Career Highlights
Tomiharu Amitani is associated with Seitetsu Kagaku Co., Ltd., where he continues to apply his expertise in chemical processes. His work has been instrumental in enhancing the quality and performance of heat-sensitive materials, making a significant impact in the industry.
Collaborations
Throughout his career, Amitani has collaborated with esteemed colleagues such as Akira Onoe and Masao Kawamura. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Tomiharu Amitani's contributions to the field of chemistry, particularly in the production of high purity bis(4-hydroxyphenyl)sulfides, highlight his innovative spirit and dedication to advancing technology. His work continues to influence the development of high-performance materials in various applications.