Company Filing History:
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Years Active: 2004-2006
Title: Exploring the Innovations of Kazuyuki Hirano
Introduction
Kazuyuki Hirano is a notable inventor based in Chiba, Japan, recognized for his significant contributions to the field of chemical engineering, particularly in the production of bisphenol A. With a total of 2 patents to his name, Hirano is dedicated to enhancing the efficiency and quality of chemical processes.
Latest Patents
Hirano's latest patents illustrate his innovative approach to bisphenol A production. The first patent details a process for producing bisphenol A, where an adduct of bisphenol A with phenol is effectively recovered with high purity from a reaction mother liquor. This process involves forming a slurry of bisphenol A through the reaction of phenol and acetone in the presence of an acid catalyst. The slurry is subjected to solid-liquid separation, followed by the removal of phenol from the solid components, characterized by filtering a slurry solution under reduced pressure in an inert gas atmosphere.
His second patent outlines a production process that focuses on achieving high-quality bisphenol A. This method successfully reduces the amount of sulfonic acid-containing heavy matter in the final product while also improving its hue. An important feature of this process is the incorporation of a filtering step after dissolving the adduct of bisphenol A and phenol, ensuring optimal quality during the crystallization and separation stages.
Career Highlights
Kazuyuki Hirano has garnered experience working for prestigious organizations such as Idemitsu Petrochemical Co., Ltd. and Idemitsu Kosan Company, Limited. His tenure at these companies greatly contributed to his expertise in chemical processes and his ability to innovate within the industry.
Collaborations
Throughout his career, Hirano has collaborated with talented coworkers, including Ken Fujimoto and Norio Ogata. These partnerships have fostered a creative environment that encourages the exchange of ideas and advancements in their respective fields.
Conclusion
Kazuyuki Hirano's work in the chemical engineering sector, particularly regarding bisphenol A production, showcases his commitment to innovation and quality. Through his patents and collaborations, he has made a lasting impact on the industry, paving the way for future advancements in production processes.