Patents by Inventor Ko Sigisawa

Ko Sigisawa 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).

  • Method for producing dry fruit chip
    Patent number: 4341803
    Abstract: A method for producing dry fruit chips in which starting fruit chips having an adjusted water soluble sugar concentration are freeze-dried to reduce the moisture content to a predetermined moisture content range, the freeze-dried fruit chips are microwave-dried to further reduce the moisture content to a second predetermined range and the microwave-dried fruit chips are vacuum-dried to still further reduce the moisture content to a range suitable for ready eating as snack fruit.
    Type: Grant
    Filed: February 5, 1981
    Date of Patent: July 27, 1982
    Inventors: Daikichi Koshida, Ko Sigisawa, Junji Majima, Ryuichi Hattori