This inventor holds 2 USPTO granted patents. Top assignee: Ube Industries, Inc.. Active years: 1984-1985.
Location History:
- Yamaguchi, JP (1984)
- Ube, JP (1985)
Company Filing History:
Years Active: 1984-1985
Title: Innovations of Tokio Ohshima
Introduction
Tokio Ohshima is a notable inventor based in Yamaguchi, Japan. He has made significant contributions to the field of biochemistry, particularly in the preparation of optically active tryptophans and tryptophanes. With a total of 2 patents, his work has implications for various applications in the pharmaceutical industry.
Latest Patents
Ohshima's latest patents include a process for preparing optically active tryptophans and a similar process for tryptophanes. The first patent describes a biochemical optical resolution of DL-tryptophans, where DL-tryptophan amides are interacted with the culture products of a microorganism capable of producing amidase. This process allows for the asymmetric hydrolysis of L-tryptophan amides in racemic DL-tryptophan amides, resulting in high yields of optically active L-tryptophans while leaving D-tryptophan amides largely unaffected. The D-tryptophan amides can then be hydrolyzed after the separation of L-tryptophans to yield optically active D-tryptophans at a high yield. The second patent follows a similar methodology for preparing optically active tryptophanes, showcasing Ohshima's innovative approach to biochemical processes.
Career Highlights
Tokio Ohshima is associated with Ube Industries, Inc., where he continues to advance his research and development efforts. His work has been instrumental in enhancing the understanding and production of optically active compounds, which are crucial in various biochemical applications.
Collaborations
Ohshima has collaborated with notable coworkers such as Mamoru Nakai and Tomio Kimura. Their combined expertise has contributed to the successful development of innovative processes in the field of biochemistry.
Conclusion
Tokio Ohshima's contributions to the field of biochemistry through his patents and collaborations highlight his role as a significant inventor. His innovative processes for preparing optically active tryptophans and tryptophanes demonstrate the impact of his work on the pharmaceutical industry.