Patents by Inventor Ryuichi Hattori

Ryuichi Hattori 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).

  • Microwave drying apparatus and use thereof
    Patent number: 4622446
    Abstract: An improved microwave drying apparatus comprising a drying chamber provided with a microwave generator and a layer of a weak dielectric substance laminated on at least a part of the inner surface of the wall of the chamber is provided, whereby the occurrence of moisture condensation on the inner wall of the chamber during the drying procedure can be prevented.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: November 11, 1986
    Assignee: House Food Industrial Company Ltd.
    Inventors: Ko Sugisawa, Yasushi Matsumura, Kazumitsu Taga, Ryuichi Hattori
  • 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