Yasuhiro Mizuno

Title: Yasuhiro Mizuno: Innovator in Menthol Purification

Introduction

Yasuhiro Mizuno is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of chemical engineering, particularly in the purification of menthol. His innovative approach has led to advancements in the production of high-purity menthol, which is widely used in various industries.

Latest Patents

Mizuno holds a patent for a process for purifying menthol. The patent describes a method where crude menthol is dissolved in a nitrile series solvent, followed by the precipitation of menthol through cooling the solution. This process results in optically and chemically pure menthol, with an enantiomeric excess of more than about 99% and a chemical purity exceeding 99%. The preferred nitrile solvents include acetonitrile and propionitrile. The dissolution occurs at temperatures below 42°C, which is the melting point of menthol. The crystallization cooling temperature is ideally at room temperature or slightly lower. Additional purification processes, such as distillation, may be conducted if necessary.

Career Highlights

Mizuno is associated with Takasago International Corporation, where he applies his expertise in chemical processes. His work has been instrumental in enhancing the quality of menthol production, benefiting various applications in the flavor and fragrance industries.

Collaborations

Mizuno has collaborated with notable colleagues, including Hidetoshi Nakayasu and Hideyuki Hongo. Their combined efforts have contributed to the advancement of chemical processes within their organization.

Conclusion

Yasuhiro Mizuno's innovative work in the purification of menthol showcases his dedication to advancing chemical engineering. His contributions have significant implications for the industry, ensuring the availability of high-purity menthol for various applications.