Company Filing History:
Years Active: 2022-2025
Title: Kazuo Hirowatari: Innovator in Bisphenol Composition and Polycarbonate Resin
Introduction
Kazuo Hirowatari is a notable inventor based in Chiyoda-ku, Japan. He has made significant contributions to the field of chemical engineering, particularly in the development of bisphenol compositions and polycarbonate resins. With a total of 2 patents, his work has implications for various industrial applications.
Latest Patents
Hirowatari's latest patents include a bisphenol composition that consists of 95% or more by mass of a bisphenol. This composition features a specific bisphenol represented by a general formula, which ensures a methanol dissolution color of 2 or less. Additionally, he has developed a method for producing a polycarbonate resin using this bisphenol composition. Another significant patent involves a bisphenol composition that includes aromatic alcohol sulfonate, along with a method for producing it. This innovation allows for an efficient melt polymerization reaction, resulting in a polycarbonate resin with excellent color tone.
Career Highlights
Kazuo Hirowatari is currently associated with Mitsubishi Chemical Corporation, where he continues to advance his research and development efforts. His work has been instrumental in enhancing the quality and efficiency of polycarbonate resin production.
Collaborations
Hirowatari has collaborated with notable colleagues such as Kei Uchiyama and Takayuki Yoshida. Their combined expertise has contributed to the successful development of innovative chemical compositions and processes.
Conclusion
Kazuo Hirowatari's contributions to the field of bisphenol compositions and polycarbonate resins highlight his role as a leading inventor in chemical engineering. His patents reflect a commitment to innovation and excellence in the industry.