Patents by Inventor Osamu Tagaki

Osamu Tagaki 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).

  • Patent number: 4901103
    Abstract: A pressure developing device having a pair of pressure developing rollers in an image recording apparatus. A pressure-sensitive recording sheet can be fed to pass between the pressure developing rollers, and has a pressure-sensitive image bearing layer on one surface thereof. A developer sheet can selectively be fed to pass between the pressure developing rollers in superposed relation to the pressure-sensitive image bearing layer. The pressure developing rollers are spaced from each other by a gap which is greater than the thickness of the pressure-sensitive sheet and smaller than the combined thickness of the pressure-sensitive sheet and the developer sheet. The pressure developing device also includes a friction roller held against a surface of the pressure-sensitive recording sheet opposite to the image bearing layer and rotatable for frictionally feeding the pressure-sensitive recording sheet.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: February 13, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kiyoharu Hayakawa, Yumio Matsumoto, Masashi Ueda, Akira Sago, Osamu Tagaki
  • Patent number: 4878084
    Abstract: An image recording sheet, such as a developer sheet, is fed so as to overlap a light-exposed sheet, such as a photosensitive pressure-sensitive sheet which carries an image recorded thereon. The image is transferred from the exposed sheet to the image recording sheet at a pressure developing unit. The image recording sheet is delivered to cause a leading end thereof to abut the exposed sheet, while being fed into the developing unit at a position near an inlet of the developing unit for allowing the image recording sheet to move along and with the exposed sheet into the developing unit. A device for feeding an image recording sheet is an image recording apparatus, said image recording apparatus including an exposure unit for light-exposure to said sheet for forming the latent image, and a pressure developing unit disposed at downstream side of the exposed unit at which the light-exposed sheet and the image recording sheet are overlappingly pressed.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: October 31, 1989
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kiyoharu Hayakawa, Yumio Matsumoto, Masashi Ueda, Akira Sago, Osamu Tagaki