Patents by Inventor Yojiro Hirota

Yojiro Hirota 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).

  • Thiophene derivatives
    Patent number: 4454131
    Abstract: This invention relates to new thiophene derivatives and their use as fungicides in agriculture and horticulture.
    Type: Grant
    Filed: April 26, 1983
    Date of Patent: June 12, 1984
    Assignees: Ube Industries, Ltd., Hokko Chemical Industry Co., Ltd.
    Inventors: Yojiro Hirota, Koichi Shinhama, Katsumi Sato, Takuo Wada