Location History:
- Yamaguchi, JP (2007)
- Shunan, JP (2012 - 2013)
Company Filing History:
Years Active: 2007-2013
Title: Hirofumi Shiigi: Innovator in Hydantoin Ring Compounds
Introduction
Hirofumi Shiigi is a notable inventor based in Shunan, Japan. He has made significant contributions to the field of chemistry, particularly in the development of compounds with hydantoin rings. His work is essential for various applications, including optical materials and pharmaceuticals.
Latest Patents
Hirofumi Shiigi holds 3 patents, with his latest focusing on a method for selectively producing the syn-isomer of a compound featuring a hydantoin ring. This compound is crucial as an optical material, electronic material, and as an active ingredient in medicines and pesticides. The method involves converting a compound with a hydantoin ring into a t-butyl ester derivative, followed by crystallization to yield the syn-monoBoc isomer.
Career Highlights
Shiigi is currently employed at Tokuyama Corporation, where he continues to innovate and develop new chemical processes. His expertise in hydantoin compounds has positioned him as a key figure in his field.
Collaborations
He has collaborated with notable coworkers, including Mina Shimamura and Eiji Ohshima, contributing to various projects and advancements in their research.
Conclusion
Hirofumi Shiigi's work in the field of hydantoin ring compounds showcases his innovative spirit and dedication to advancing chemical research. His contributions are vital for the development of new materials and pharmaceuticals.