Company Filing History:
Years Active: 2002-2005
Title: Tadayoshi Kawashima: Innovator in Chemical Production
Introduction
Tadayoshi Kawashima is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of chemical production, holding a total of 3 patents. His work focuses on improving production processes and enhancing product quality in the chemical industry.
Latest Patents
One of his latest patents is a method for the production of maleic anhydride. This invention discloses a method that includes an azeotropic distillation step to dehydrate a crude maleic acid-containing aqueous solution. The method is characterized by using an organic solvent that exhibits a maximum dissolving concentration in water ranging from 0.1-5% by weight at a temperature of 20°C. This innovation allows for the prevention of blocking substances, enables continuous operation for extended periods, and facilitates the removal of by-produced acid components through distillation.
Another significant patent by Kawashima is a production process for hydroxyalkyl (meth)acrylate. This process aims to increase productivity while minimizing the risk of explosion and reducing the formation of impurities that negatively affect product quality. The method specifies that more than 50% of the alkylene oxide should be supplied before half the total time has elapsed, ensuring a controlled and efficient production process.
Career Highlights
Kawashima is currently employed at Nippon Shokubai Co., Ltd., a leading company in the chemical industry. His work at this organization has allowed him to develop innovative solutions that address critical challenges in chemical production.
Collaborations
Throughout his career, Kawashima has collaborated with notable colleagues, including Tetsuya Kajihara and Hideaki Nagano. These collaborations have contributed to the advancement of their shared goals in the field of chemical engineering.
Conclusion
Tadayoshi Kawashima's contributions to chemical production through his innovative patents demonstrate his commitment to enhancing industrial processes. His work continues to influence the field and improve product quality in the chemical industry.