Patents by Inventor Shigeoni Watanabe

Shigeoni Watanabe 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).

  • Condensed heterocyclic derivatives and herbicides
    Patent number: 5039331
    Abstract: A condensed heterocyclic derivative having the formula: ##STR1## wherein X is an oxygen atom or a sulfur atom; and Z is ##STR2##
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: August 13, 1991
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Jun Satow, Kenzou Fukuda, Kaoru Itoh, Takashi Ikai, Koichi Suzuki, Tsutomu Nawamaki, Shigeoni Watanabe