Company Filing History:
Years Active: 1994
Title: Hirooki Nagaoka: Innovator in Chemical Processes
Introduction
Hirooki Nagaoka is a notable inventor based in Minoo, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of valuable chemical compounds. With a total of 2 patents to his name, Nagaoka's work has had a meaningful impact on the industry.
Latest Patents
Nagaoka's latest patents focus on innovative processes for producing phenol and methyl ethyl ketone. The first patent describes a method where sec-butylbenzene hydroperoxide, obtained by oxidizing sec-butylbenzene, is decomposed into phenol and methyl ethyl ketone. The resulting liquid, which primarily consists of methyl ethyl ketone, is then washed with an aqueous alkali solution to eliminate impurities such as carboxylic acids, carboxylic acid esters, unsaturated ketones, and aldehydes. This process ensures that the final product has high purity and quality, particularly in terms of potassium permanganate fading. The second patent outlines a similar process, where sec-butylbenzene, free from various impurities, is oxidized to obtain sec-butylbenzene hydroperoxide, which is subsequently decomposed to yield phenol and methyl ethyl ketone.
Career Highlights
Hirooki Nagaoka is currently employed at Sumitomo Chemical Company, Limited, where he continues to advance his research and development efforts. His work has been instrumental in enhancing the efficiency and quality of chemical production processes.
Collaborations
Nagaoka has collaborated with esteemed colleagues such as Kiyoshi Iwanaga and Mitsuhisa Tamura. Their combined expertise has contributed to the successful development of innovative chemical processes.
Conclusion
Hirooki Nagaoka's contributions to the field of chemical engineering, particularly through his patents on phenol and methyl ethyl ketone production, highlight his role as a significant innovator. His work not only advances industrial processes but also sets a standard for quality in chemical manufacturing.