Shigeru Yokota

Title: Shigeru Yokota: Innovator in Carbonic Acid Ester Production

Introduction

Shigeru Yokota is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of carbonic acid esters. With a total of 2 patents to his name, Yokota's work has implications for various industrial applications.

Latest Patents

Yokota's latest patents focus on innovative processes for producing carbonic acid esters. The first patent describes a method where an alcohol is reacted with carbon monoxide and oxygen in the presence of a catalyst that includes a cupric salt of a weak acid and/or a cupric halide, along with an alkaline earth metal salt of a weak acid and/or an alkaline earth metal halide. The second patent outlines a similar process but emphasizes the use of a copper compound, either alone or in combination with a platinum group metal compound, and a reaction accelerator. This process is characterized by the use of a nitrile or amide compound as a solvent and the presence of specific reaction accelerators.

Career Highlights

Shigeru Yokota is associated with Daicel Chemical Industries, Ltd., where he has been able to apply his innovative ideas in a practical setting. His work has contributed to advancements in chemical processes that are essential for various applications in the industry.

Collaborations

Yokota has collaborated with notable colleagues such as Hiroto Miyake and Hiroshi Koyama. These partnerships have likely enhanced the development and refinement of his patented processes.

Conclusion

Shigeru Yokota's contributions to the field of carbonic acid ester production highlight his innovative spirit and dedication to advancing chemical engineering. His patents reflect a commitment to improving industrial processes, making him a significant figure in his field.