Patents by Inventor Toshimitu Inoue

Toshimitu Inoue 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).

  • Method of stabilizing N-vinylamides
    Patent number: 5840976
    Abstract: Disclosed herein is a method of improving the stability of N-vinylamides. A quinone or alkali-modified quinone is added to the N-vinylamide. The loss of the N-vinylamide due to polymerization and/or decomposition during distillation is significantly reduced.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: November 24, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shin-Ichi Sato, Kiyoji Kuma, Toshimitu Inoue, Yuuichi Nishida