Sumio Nakashima

Title: The Innovations of Sumio Nakashima

Introduction

Sumio Nakashima is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of various chemical compounds. With a total of 3 patents to his name, Nakashima's work has had a lasting impact on the industry.

Latest Patents

One of Nakashima's latest patents is a method for the production of alkylamino(meth)acrylate. This innovative process involves the transesterification of alkyl(meth)acrylate with alkylamino alcohol, where the by-produced alkyl alcohol is distilled in an azeotropic mixture with the alkyl(meth)acrylate. The resultant distillate is then purified using an ion-exchange resin. Additionally, the reaction solution is distilled to separate the catalyst, ensuring that the increase of the Michael adduct is kept below 2%. Another significant patent is for the production of unsaturated carboxylic acid esters, showcasing his expertise in chemical synthesis.

Career Highlights

Throughout his career, Nakashima has worked with prominent companies such as Nippon Shokubai Kagaku Kogyo Co., Ltd. and Nippon Shokubai Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Some of Nakashima's notable coworkers include Takahisa Sato and Masao Baba. Their collaborative efforts have further advanced the research and development in their respective fields.

Conclusion

Sumio Nakashima's contributions to chemical engineering through his patents and collaborations highlight his role as an influential inventor. His innovative methods continue to shape the industry and inspire future advancements.