Location History:
- Arai, JP (1980 - 1987)
- Himeji, JP (2003)
Company Filing History:
4 out of 1,165 
1 out of 76 Years Active: 1980-2003
Title: Tadayuki Mitani: Innovator in Chemical Processes
Introduction
Tadayuki Mitani is a notable inventor based in Arai, Japan. He has made significant contributions to the field of chemical processes, holding a total of 4 patents. His work focuses on the production of important chemical compounds, showcasing his expertise and innovative spirit.
Latest Patents
One of Mitani's latest patents is a process for producing sorbic acid. This process involves hydrolyzing a polyester with an aqueous hydrochloric acid solution that has a concentration of 15% by weight or less. The hydrolysis occurs under pressure or at a temperature of 100°C or higher, with the polyester being derived from the reaction between crotonaldehyde and ketene. The method allows for the hydrolysis of the polyester using a 3 to 10% by weight aqueous hydrochloric acid solution at temperatures ranging from 115°C to 140°C. This innovative process significantly reduces the amount of tar formed during the decomposition of the polyester, enhances the yield of sorbic acid, and minimizes the waste treatment load during purification operations.
Another significant patent by Mitani is a process for producing glyoxylic acid. This process involves oxidizing glyoxal with an aqueous oxidizing agent composition derived from nitric acid and a nonoxidizing strong acid, typically hydrochloric acid. The reaction is carefully controlled to ensure that the concentration of nitric acid does not exceed 1% during the process. This method highlights Mitani's ability to develop efficient and effective chemical production techniques.
Career Highlights
Throughout his career, Tadayuki Mitani has worked with prominent companies in the chemical industry, including Daicel Chemical Industries, Ltd. and Chlorine Engineers Corporation. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his innovative processes.
Collaborations
Mitani has collaborated with notable colleagues such as Mamoru Endo and Hiroyuki Harada. These partnerships have likely played a role in enhancing his research and development efforts.
Conclusion
Tadayuki Mitani is a distinguished inventor whose work in chemical processes has led to significant advancements in the production of sorbic and glyoxylic acids. His innovative approaches and collaborations have made a lasting impact in the field of chemistry.