Company Filing History:
1 out of 614 
1 out of 167 
Years Active: 1991
Title: **Misunori Shimura: A Pioneer in Naphthalene Carboxylic Acid Preparation**
Introduction
Misunori Shimura, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of chemical processes. With a focus on innovative methods for synthesizing chemical compounds, his expertise has led to patentable technologies that enhance production efficiency.
Latest Patents
Shimura holds one notable patent: a novel process for the preparation of naphthalene carboxylic acids. The patent outlines a method for creating naphthalene mono or polycarboxylic acids, including the well-known 2,6-naphthalene dicarboxylic acid. This innovative process involves oxidizing a naphthalene compound, specifically 2,6-diisopropylnaphthalene, in a carefully selected solvent that contains molecular oxygen. The method requires the presence of a catalyst made up of a heavy metal compound along with a bromine compound. The process allows for high control over the yield of the desired product by managing the ratio of catalyst metal to the feed rate of the raw material naphthalene compound.
Career Highlights
Throughout his career, Shimura has worked with leading companies in the chemical industry, including NKK Corporation and Chiyoda Corporation. His experiences at these organizations have helped to shape his innovative spirit and drive for developing effective chemical processes.
Collaborations
During his time in the industry, Shimura collaborated with notable colleagues, including Yakudo Tachibana and Kazuhiko Tate. These partnerships have undoubtedly contributed to the advancement of his research and the successful development of his patented processes.
Conclusion
Misunori Shimura stands out as a key figure in the field of chemical engineering with his innovative patent on the preparation of naphthalene carboxylic acids. His dedication to advancing chemical processes reflects the ongoing evolution of the industry and the importance of innovation in achieving greater efficiency and effectiveness in production.