Company Filing History:
Years Active: 1979-1990
Title: The Innovative Contributions of Makoto Aiga
Introduction
Makoto Aiga is a prominent inventor based in Omuta, Japan. He has made significant contributions to the field of chemical engineering, particularly in the preparation of various compounds. With a total of 4 patents to his name, Aiga's work has had a notable impact on the industry.
Latest Patents
One of Aiga's latest patents involves a preparation process for hexamethylene diisocyanate (HDI). This process entails introducing a hexamethylenediamine (HDA) solution and an equivalent amount or more of hydrogen chloride gas into a turbulent zone near an agitating blade within an inert organic solvent. The reaction occurs in a tank-shaped reactor, resulting in a high-concentration slurry of hexamethylenediamine hydrochloride. The subsequent reaction with phosgene is conducted under controlled pressure, optimizing the phosgenation time.
Another significant patent focuses on the process for preparing aromatic urethanes. This method involves the interaction of an aromatic primary amino compound with a nitro group, an organic compound with at least one hydroxyl group, and carbon monoxide. The reaction occurs in the presence of a catalytic system, including a platinum group metal and a Lewis acid, under high temperature and pressure conditions. This innovative approach can yield valuable compounds such as 2,4-diethylcarbamatetoluene.
Career Highlights
Makoto Aiga is currently associated with Mitsui Toatsu Chemicals, Incorporated, where he continues to advance his research and development efforts. His work has been instrumental in enhancing the efficiency and effectiveness of chemical processes.
Collaborations
Aiga has collaborated with notable coworkers, including Yutaka Hirai and Katsuharu Miyata. Their combined expertise has contributed to the successful development of innovative chemical processes.
Conclusion
Makoto Aiga's contributions to the field of chemical engineering through his patents and collaborative efforts highlight his role as a key innovator. His work continues to influence the industry and pave the way for future advancements.