Patents Assigned to Tokiwa Kanpo Pharmaceutical Co., Ltd.
  • Hair dyeing by iridoid glycosides and aglycons thereof
    Patent number: 5078750
    Abstract: A method of dyeing hair which comprises contacting hair with an iridoid glycoside or an aglycon thereof.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: January 7, 1992
    Assignee: Tokiwa Kanpo Pharmaceutical Co., Ltd.
    Inventors: Koichiro Komai, Shoichi Harima
  • Acid and alkali insoluble food component from leguminous plants
    Patent number: 4548831
    Abstract: A health food comprising acid- and alkali-insoluble substances obtained as an unextractable residue on extracting defatted seeds of leguminous plants with acid and alkali. Said health food is useful in prophylactic and therapeutic treatment of obesity.
    Type: Grant
    Filed: October 26, 1983
    Date of Patent: October 22, 1985
    Assignee: Tokiwa Kanpo Pharmaceutical Co., Ltd.
    Inventor: Junichi Iwamura
  • Process for isolating saponins and flavonoids from leguminous plants
    Patent number: 4428876
    Abstract: A process for isolating saponins and flavonoids from leguminous plant which comprises extracting a part or the whole of the said plant with an aqueous alkaline solution, separating the extract from insoluble matters comprising fibrous materials, applying the extract on non-polar or slightly polar adsorbent resin to adsorb the saponins and flavonoids on the said resin, and treating the resin with a polar solvent to elute the saponins and the flavonoids adsorbed on the said resin.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: January 31, 1984
    Assignee: Tokiwa Kanpo Pharmaceutical Co., Ltd.
    Inventor: Junichi Iwamura