Company Filing History:
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Years Active: 2000-2013
Title: Hiroaki Isago: Innovator in Phthalocyanine Chemistry
Introduction
Hiroaki Isago is a notable inventor based in Tsukuba, Japan. He has made significant contributions to the field of chemistry, particularly in the development of water-soluble phthalocyanine dyes and radical anions. With a total of 2 patents, his work has implications for various applications, including organic semiconductors.
Latest Patents
One of Isago's latest inventions is a water-soluble phthalocyanine dye. This invention aims to provide a dye that maintains its properties even when dissolved in high concentrations, up to 10M. The innovative aspect of this dye lies in its use of sulfuric acid groups as axial ligands in an antimony/phthalocyanine complex. These groups are introduced by replacing some or all hydroxyl groups in the starting material with sulfuric acid groups.
Another significant patent is related to phthalocyanine radical anions. This invention describes a stable phthalocyanine radical anion that can exist in ambient atmosphere. It is formed by subjecting a salt containing dihalogeno(phthalocyaninato)antimony (V) cation to a one-electron reduction. This stable radical is expected to be developed as an n-type organic semiconductor, showcasing the potential for advancements in electronic materials.
Career Highlights
Hiroaki Isago has worked at prestigious institutions such as the National Research Institute for Metals and the National Institute for Materials Science. His research has focused on the synthesis and application of novel chemical compounds, contributing to advancements in material science.
Collaborations
Throughout his career, Isago has collaborated with notable colleagues, including Yutaka Kagaya and Md Hasan Zahir. These collaborations have enriched his research and expanded the impact of his inventions.
Conclusion
Hiroaki Isago's contributions to the field of phthalocyanine chemistry highlight his innovative spirit and dedication to advancing material science. His patents reflect a commitment to developing new technologies that can have a lasting impact on various industries.