Patents Assigned to Kabushiki Kaisha Tokai Yukinosan
  • Plant culture method and support substrate applied thereto
    Patent number: 5675929
    Abstract: A culture method of growing plants or plant seedlings on a culture medium provided on a support substrate which is comprised of an upper layer made of small stone and activated charcoal integrally solidified by synthetic resin in such a manner as to maintain water permeability therein and a lower layer in the form of a water permeable reinforcement layer integrally formed with the upper layer.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: October 14, 1997
    Assignee: Kabushiki Kaisha Tokai Yukinosan
    Inventors: Cho Sontea, Sumio Takigawa, Ryoichi Ueda