Company Filing History:
Years Active: 2020-2025
Title: Innovations of Yoshinao Nakagawa
Introduction
Yoshinao Nakagawa is a prominent inventor based in Sendai, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of olefins and catalysts for hydrogenation. With a total of 4 patents to his name, Nakagawa's work has had a notable impact on industrial processes.
Latest Patents
One of Nakagawa's latest patents is a method for producing olefins and an olefination reaction catalyst. This method allows for the production of olefins with high selectivity and yield using vicinal diols as raw materials. The process involves reacting a compound with two adjacent carbon atoms, each containing a hydroxy group, with hydrogen in the presence of a catalyst under solvent-free conditions. The catalyst comprises a carrier, oxides of group-6 and group-7 elements, and metals such as silver, iridium, and gold.
Another significant patent involves the production methods of catalysts for hydrogenation. This invention focuses on a novel catalyst designed for hydrogenating dicarboxylic acids or their acid anhydrides. The catalyst is created by supporting palladium or platinum, along with cobalt, on a carrier and subjecting it to a reduction treatment at temperatures of 400 K or higher. A second embodiment of the catalyst involves supporting palladium or platinum, along with molybdenum, on a carrier and treating it at 500 K or higher.
Career Highlights
Throughout his career, Nakagawa has worked with notable companies such as Daicel Corporation and Toyo Tire Corporation. His experience in these organizations has contributed to his expertise in chemical processes and catalyst development.
Collaborations
Some of Nakagawa's coworkers include Keiichi Tomishige and Yuuichirou Hirai. Their collaborative efforts have further advanced the research and development of innovative chemical solutions.
Conclusion
Yoshinao Nakagawa's contributions to the field of chemical engineering through his patents and collaborations highlight his role as a significant inventor. His innovative methods for producing olefins and catalysts continue to influence industrial practices today.