Patents by Inventor Ryutaro Fukazawa

Ryutaro Fukazawa 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).

  • Cyclodextrin inclusion compound and process for its preparation
    Patent number: 4675395
    Abstract: Hinokitiol, which is relatively insoluble in water, can be rendered more soluble by converting it to an inclusion compound in a cyclodextrin. This may be prepared by heating a mixture of hinokitiol and an aqueous solution of cyclodextrin to a temperature above the melting point of hinokitiol and then mixing the heated mixture with a very cold organic liquid to precipitate the inclusion compound.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: June 23, 1987
    Assignee: Seiwa Technological Laboratories Limited
    Inventors: Ryutaro Fukazawa, Susumu Kodama, Mieko Sato