Patents by Inventor Toshio Shiga

Toshio Shiga 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).

  • Male sterile plant species
    Patent number: 5650559
    Abstract: Male sterile plants derived from backcrossing plants having various hybridized and pure Ogura cytoplasms derived from a Japanese radish to mediate male sterility with plants having various hybridized and pure nuclei derived from the genus Brassica.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: July 22, 1997
    Assignee: Sakata Seed Corporation
    Inventors: Toyokazu Akamatsu, Tsutomu Kagami, Hiromi Sato, Toshio Shiga