Patents by Inventor Tokuyasu Ito

Tokuyasu Ito 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).

  • Rubber plant (Ficus Gold King)
    Patent number: PP4069
    Abstract: A rubber plant exhibiting variegated foliage and resembling the known Ficus elastica Roxb. var. decora tricolor hort., but bearing leaves exhibiting very narrow dark-green borders and light-yellow interiors and being smaller in size. The leaf blades are of an ovate shape with a thick coriaceous texture and with wavy edges. Propagation of the rubber plant by using cuttings is difficult and even impossible, therefore, air layering is employed.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: July 5, 1977
    Assignee: Cerro Gordo, Inc.
    Inventors: Tokuyasu Ito, Hideo Ikuta
  • Rubber plant (Ficus elastica)
    Patent number: PP4117
    Abstract: A rubber plant exhibiting border-variegated foliage and resembling the known Ficus elastica Roxb. var. decora tricolor hort., but bearing leaves having very narrow and distinct light-yellow border variegation and having a larger coriaceous oblong-shaped blade. Buds and young leaves are reddish in color. Propagation of new plants is easily accomplished by stem-cutting.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: October 4, 1977
    Inventors: Tokuyasu Ito, Hideo Ikuta