Patents Assigned to Nikken Rentacom Company, Limited
  • Treatment method for preservation of plant leaves
    Patent number: 6960363
    Abstract: A treatment method for preservation of plant leaves wherein the plant leaves are immersed in a dehydrating solvent consisting of acetone and ethyl alcohol to replace the tissue water and remove chlorophyll in the leaves by the dehydrating solvent. Thereafter, the leaves are immersed in a permeating solution containing polyethylene glycol and acetone for allowing polyethylene glycol to permeate the leaves for replacing the dehydrating solvent. Thereafter, the leaves are dyed with a coloring matter.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: November 1, 2005
    Assignee: Nikken Rentacom Company, Limited
    Inventors: Toshio Ando, Yoshihiro Ueda, Tadashi Sekiyama