Patents by Inventor Katsufumi Kuzira

Katsufumi Kuzira has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of indoles
    Patent number: 4659841
    Abstract: A process for preparing indoles in high yield by reacting anilines and 1,2-glycols in a liquid phase in the presence of a cadmium bromide or iodide/potassium bromide or iodide catalyst. The used catalyst can be easily recovered and when reused, exhibits excellent performance.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: April 21, 1987
    Assignee: Research Association for Utilization of Light Oil
    Inventors: Makoto Imanari, Hiroshi Iwane, Katsufumi Kuzira, Takatoshi Seto