Company Filing History:
Years Active: 2004-2005
Title: Youko Sugio: Innovator in Chemical Production
Introduction
Youko Sugio is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of chemical production, holding a total of 2 patents. Her innovative approaches have led to advancements in the synthesis of important chemical compounds.
Latest Patents
One of her latest patents is the "Production process of 2,7-dibromofluorenone." This process involves oxidizing a 2,7-dibromofluorene-containing raw material with molecular oxygen in the presence of a phase transfer catalyst, such as a quaternary ammonium salt. The reaction occurs in a heterogeneous, mixed solvent consisting of an aqueous solution of a caustic alkali and a water-insoluble organic solvent. The resulting crude crystals of 2,7-dibromofluorenone can be purified through recrystallization, achieving a purity of at least 99 wt. %. Another notable patent is the "Production process of indene," which describes the production of indene from an indene-containing coal tar distillate. This process includes adding a glycol to the distillate and conducting azeotropic distillation to isolate the indene fraction while removing benzonitrile.
Career Highlights
Youko Sugio is currently employed at JFE Chemical Corporation, where she continues to innovate in the field of chemical production. Her work has been instrumental in developing efficient processes that enhance the quality and yield of chemical products.
Collaborations
Throughout her career, Youko has collaborated with notable colleagues, including Hiroaki Mori and Naoyuki Kitamura. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise.
Conclusion
Youko Sugio is a remarkable inventor whose contributions to chemical production have made a significant impact in her field. Her innovative patents and collaborative efforts highlight her dedication to advancing chemical processes.