Location History:
- Toyonaka, JA (1976 - 1977)
- Toyonaka, JP (1979)
Company Filing History:
Years Active: 1976-1979
Title: Innovations of Yoshitaka Ume
Introduction
Yoshitaka Ume is a notable inventor based in Toyonaka, Japan. He has made significant contributions to the field of chemistry, particularly in the production of important chemical intermediates. With a total of 4 patents to his name, Ume's work has had a considerable impact on the development of insecticides and other chemical products.
Latest Patents
Ume's latest patents include a process for producing 3-methyl-2-(4-halophenyl)butyronitrile. This process allows for the production of this important intermediate in a high yield and high purity, even on a commercial scale. The method involves reacting a p-halophenylacetonitrile with an isopropyl halide, both of which must have a low content of halobenzyl alcohol and isopropyl alcohol, respectively. Another significant patent is for the preparation of m-phenoxybenzyl alcohol and side-chain halogenated compounds. This process includes halogenating m-phenoxytoluene in the presence of a phosphorus halide at high temperatures, followed by various reactions to produce the desired alcohol and halides.
Career Highlights
Yoshitaka Ume is currently associated with Sumitomo Chemical Company, Limited, where he continues to innovate and develop new chemical processes. His expertise in the field has led to advancements that benefit both the company and the broader industry.
Collaborations
Ume has worked alongside notable colleagues such as Takashi Matsuo and Toshio Mizutani. Their collaborative efforts have contributed to the success of various projects and innovations within the company.
Conclusion
Yoshitaka Ume's contributions to the field of chemistry through his patents and work at Sumitomo Chemical Company, Limited highlight his role as a significant inventor. His innovative processes continue to influence the production of essential chemical intermediates.