Patents by Inventor Kiyotaka Kitagawa

Kiyotaka Kitagawa 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).

  • Dried amnion and method for drying treatment of amnion
    Patent number: 8932641
    Abstract: The present invention provides a dried amnion which is dried with maintaining tissues of a raw amnion and can be easily stored for a prolonged period of time. An amnion which is dried with maintaining cells and tissues of a raw amnion can be produced by repeating a pressure-reducing operation and a pressure-recovery operation several times, the pressure-reducing operation comprising continuously heating a raw amnion placed in a treatment vessel by a far-infrared heater provided in the treatment vessel and reducing the pressure of the inside of the treatment vessel, and the pressure-recovery operation comprising recovering the reduced pressure of the inside of the treatment vessel with heating the amnion by microwaves irradiated from a microwave heating apparatus provided outside of the treatment vessel, and the amnion is characterized by retaining basement membranes and connective tissues which are constituents of the raw amnion.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: January 13, 2015
    Assignee: Amnos Co., Ltd.
    Inventors: Toshio Nikaido, Toshiko Yoshida, Motonori Okabe, Ayaka Toda, Kiyotaka Kitagawa, Masahiko Arakawa
  • Dried amnion and method for drying teatment of amnion
    Publication number: 20090258082
    Abstract: The present invention provides a dried amnion which is dried with maintaining tissues of a raw amnion and can be easily stored for a prolonged period of time. An amnion which is dried with maintaining cells and tissues of a raw amnion can be produced by repeating a pressure-reducing operation and a pressure-recovery operation several times, the pressure-reducing operation comprising continuously heating a raw amnion placed in a treatment vessel by a far-infrared heater provided in the treatment vessel and reducing the pressure of the inside of the treatment vessel, and the pressure-recovery operation comprising recovering the reduced pressure of the inside of the treatment vessel with heating the amnion by microwaves irradiated from a microwave heating apparatus provided outside of the treatment vessel, and the amnion is characterized by retaining basement membranes and connective tissues which are constituents of the raw amnion.
    Type: Application
    Filed: August 18, 2006
    Publication date: October 15, 2009
    Inventors: Toshio Nikaido, Toshiko Yoshida, Motonori Okabe, Ayaka Toda, Kiyotaka Kitagawa, Masahiko Arakawa