Patents by Inventor Makoto Okuzawa

Makoto Okuzawa 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).

  • Electrophotographic photoreceptor and method of recycling the electrophotographic photoreceptor
    Patent number: 7356280
    Abstract: An electrophotographic photoreceptor including a cylindrical substrate including a photosensitive layer on an outer circumferential surface thereof and a flange adhesively fixed to at least one end of the cylindrical substrate. The flange has a joint to which a separation jig is applied to apply a tensility in a direction of separating the flange from the cylindrical substrate. A method of recycling the electrophotographic photoreceptor fills an elastic body with a fluid to inflate and contact the elastic body at the outer circumferential surface of the electrophotographic photoreceptor upon application of pressure to grasp the electrophotographic photoreceptor in the jig, and the jig is applied to the joint to pull the flange in a direction of separating the flange from the cylindrical substrate.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: April 8, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuya Kusano, Makoto Okuzawa, Naoyoshi Kusano, Junichi Yamazaki
  • ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND METHOD OF RECYCLING THE ELECTROPHOTOGRAPHIC PHOTORECEPTOR
    Publication number: 20070242975
    Abstract: An electrophotographic photoreceptor including a cylindrical substrate including a photosensitive layer on an outer circumferential surface thereof and a flange adhesively fixed to at least one end of the cylindrical substrate. The flange has a joint to which a separation jig is applied to apply a tensility in a direction of separating the flange from the cylindrical substrate. A method of recycling the electrophotographic photoreceptor fills an elastic body with a fluid to inflate and contact the elastic body at the outer circumferential surface of the electrophotographic photoreceptor upon application of pressure to grasp the electrophotographic photoreceptor in the jig, and the jig is applied to the joint to pull the flange in a direction of separating the flange from the cylindrical substrate.
    Type: Application
    Filed: June 19, 2007
    Publication date: October 18, 2007
    Inventors: Tetsuya KUSANO, Makoto Okuzawa, Naoyoshi Kusano, Junichi Yamazaki
  • Electrophotographic photoreceptor and method of recycling the electrophotographic photoreceptor
    Patent number: 7280783
    Abstract: An electrophotographic photoreceptor including a cylindrical substrate including a photosensitive layer on an outer circumferential surface thereof and a flange adhesively fixed to at least one end of the cylindrical substrate. The flange has a joint to which a separation jig is applied to apply a tensility in a direction of separating the flange from the cylindrical substrate. A method of recycling the electrophotographic photoreceptor fills an elastic body with a fluid to inflate and contact the elastic body at the outer circumferential surface of the electrophotographic photoreceptor upon application of pressure to grasp the electrophotographic photoreceptor in the jig, and the jig is applied to the joint to pull the flange in a direction of separating the flange from the cylindrical substrate.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: October 9, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuya Kusano, Makoto Okuzawa, Naoyoshi Kusano, Junichi Yamazaki
  • Electrophotographic photoreceptor and method of recycling the electrophotographic photoreceptor
    Publication number: 20050095033
    Abstract: An electrophotographic photoreceptor including a cylindrical substrate including a photosensitive layer on an outer circumferential surface thereof and a flange adhesively fixed to at least one end of the cylindrical substrate. The flange has a joint to which a separation jig is applied to apply a tensility in a direction of separating the flange from the cylindrical substrate. A method of recycling the electrophotographic photoreceptor fills an elastic body with a fluid to inflate and contact the elastic body at the outer circumferential surface of the electrophotographic photoreceptor upon application of pressure to grasp the electrophotographic photoreceptor in the jig, and the jig is applied to the joint to pull the flange in a direction of separating the flange from the cylindrical substrate.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 5, 2005
    Inventors: Tetsuya Kusano, Makoto Okuzawa, Naoyoshi Kusano, Junichi Yamazaki