Kunio Tagawa

Title: Kunio Tagawa: Innovator in High Purity 1,3-Butylene Glycol Production

Introduction

Kunio Tagawa is a notable inventor based in Yamaguchi, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of high-purity chemicals. His innovative work has led to the development of a patented method that enhances the quality of 1,3-butylene glycol.

Latest Patents

Kunio Tagawa holds a patent for "1,3 butylene glycol of high purity and method for producing the same." This patent describes a process for obtaining high-purity 1,3-butylene glycol from acetaldol through a liquid phase hydrogen reduction method. The method involves adding a base to crude 1,3-butylene glycol, heat-treating the mixture, and distilling off the desired product. The resulting 1,3-butylene glycol exhibits a relative retention time of 1.0 in high-performance liquid chromatography analysis, with an absorbance of 0.02 or less at a measuring wavelength of 210 nm. This compound is notable for its lack of odor and stability over time. Kunio Tagawa has 1 patent to his name.

Career Highlights

Kunio Tagawa is associated with Daicel Chemical Industries, Ltd., where he has been instrumental in advancing chemical production techniques. His work has not only contributed to the company's portfolio but has also set new standards in the industry for purity and efficiency.

Collaborations

One of his notable coworkers is Yasuo Tsuji, with whom he has likely collaborated on various projects within the company. Their combined expertise has contributed to the innovative advancements at Daicel Chemical Industries.

Conclusion

Kunio Tagawa's contributions to the field of chemical engineering, particularly in the production of high-purity 1,3-butylene glycol, highlight his role as an influential inventor. His patented methods and ongoing work continue to impact the industry positively.