This inventor holds 2 USPTO granted patents and 2 published patent applications. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1998-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1998-2001
Title: Toyomitsu Shimizu: Innovator in Acrylic and Methacrylate Production
Introduction
Toyomitsu Shimizu is a notable inventor based in Niihama, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of acrylic and methacrylate polymers. With a total of 2 patents to his name, Shimizu's work has had a considerable impact on industrial processes.
Latest Patents
Shimizu's latest patents include a method for producing acrylic acid and a process for the production of methacrylate polymers. The method for producing acrylic acid involves subjecting an acrylic acid-containing aqueous solution, obtained through catalytic vapor phase oxidation of propylene and/or acrolein, to evaporation. This process yields an acrylic acid-containing vapor that is then subjected to azeotropic dehydration. The advantages of this method include a reduced amount of polymer adhering to the surfaces of the dehydration columns, allowing for continuous operation of production plants without interruptions.
The second patent details a process for producing methacrylate polymers. This process involves continuously bulk polymerizing a monomer feed composed of methyl methacrylate or a mixture of at least 70 weight % of methyl methacrylate with other copolymerizable vinyl monomers. The bulk polymerization occurs in a reactor filled with the polymer composition, maintaining a thermally insulated state to prevent heat exchange with the environment. This innovative approach results in a polymer composition with a weight percentage of 40-70% and utilizes a radical initiator for effective polymerization.
Career Highlights
Toyomitsu Shimizu is associated with Sumitomo Chemical Company, Limited, where he has contributed to advancements in chemical production techniques. His expertise in polymer chemistry has positioned him as a key figure in the industry.
Collaborations
Shimizu has worked alongside notable colleagues such as Ryuji Matsushita and Masahiko Moritani. Their collaborative efforts have furthered research and development in the field of chemical engineering.
Conclusion
Toyomitsu Shimizu's innovative approaches to acrylic and methacrylate production exemplify the importance of research and development in the chemical industry. His patents reflect a commitment to improving industrial processes and enhancing production efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile