Patents by Inventor Shuichi Soma

Shuichi Soma 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).

  • Isovaleric acid derivatives
    Patent number: 4316044
    Abstract: Isovaleric acid derivatives having the formula ##STR1## wherein typical representations of X is halophenyl, R.sub.1 is hydrogen or cyano, R.sub.2 is hydrogen or lower alkyl, and Y is halophenyl. These derivatives possess insecticidal and acaricidal properties. The process for their preparation is described.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: February 16, 1982
    Assignee: Nippon Soda Company Limited
    Inventors: Keiichi Ishimitsu, Isamu Kasahara, Tomio Yamada, Michihiko Matsuda, Hidemitsu Takahashi, Shuichi Soma