Patents by Inventor Riyoiti Ikematsu

Riyoiti Ikematsu 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 production of 2,3-dichloropropionitrile
    Patent number: 4418018
    Abstract: In a process for the production of 2,3-dichloropropionitrile by the chlorination of acrylonitrile, the improvement which comprises chlorinating acrylonitrile in the presence of pyridine or an alkylpyridine in combination with an alkaline earth metal carbonate.
    Type: Grant
    Filed: January 26, 1982
    Date of Patent: November 29, 1983
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kazuyuki Kuroda, Riyoiti Ikematsu, Kazunari Nitta