Patents by Inventor Ikeda Tsutomu

Ikeda Tsutomu 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).

  • Patent number: 4701522
    Abstract: It is the object of the invention to provide a chemical substance which is effective, in particular, against insect-transmitted viruses, compared with conventional plant-virus disease preventive agents. This substance is produced from tissues of plants of the genus Mirabilis, and may be widely utilized as a basic protein with anti-plant-virus effects and as an active ingredient for plant-virus diseases preventive agents. Such preventive agents can eliminate difficulties in safety, and is effective because antiviral activity is developed systemically.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: October 20, 1987
    Assignee: Japan Tobacco Inc.
    Inventors: Kubo Susumu, Ikeda Tsutomu, Takanami Yoichi, Mikami Yoichi