Patents by Inventor Sachie Matsudaira

Sachie Matsudaira 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: 9639021
    Abstract: The image forming system having an image forming apparatus and a charge adjusting apparatus has a decision unit that decides an amount of charge to be applied to a recording sheet from coverages of toner images of both surfaces of the recording sheet, the image forming apparatus has a fixing unit that heats and presses a recording sheet to which a toner image is transferred, thereby fixing the toner image to the recording sheet, and the charge adjusting apparatus has a voltage applying unit that applies a voltage to the recording sheet to which the toner image is fixed by the fixing unit, thereby applying charge with the amount decided by the decision unit to the recording sheet.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 2, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Sachie Matsudaira, Satoshi Nishida, Junichi Hamada
  • Publication number: 20160187803
    Abstract: The image forming system having an image forming apparatus and a charge adjusting apparatus has a decision unit that decides an amount of charge to be applied to a recording sheet from coverages of toner images of both surfaces of the recording sheet, the image forming apparatus has a fixing unit that heats and presses a recording sheet to which a toner image is transferred, thereby fixing the toner image to the recording sheet, and the charge adjusting apparatus has a voltage applying unit that applies a voltage to the recording sheet to which the toner image is fixed by the fixing unit, thereby applying charge with the amount decided by the decision unit to the recording sheet.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Inventors: Sachie MATSUDAIRA, Satoshi NISHIDA, Junichi HAMADA
  • Publication number: 20150063861
    Abstract: A cleaning device includes a semiconductive transfer member which carries charged toner; a first cleaner disposed in contact with the transfer member to electrostatically remove the toner on the transfer member; a second cleaner disposed downstream of the first cleaner along a moving direction of the transfer member to electrostatically remove the toner on the transfer member; and a voltage applicator which applies a bias voltage to the first cleaner, the bias voltage having an opposite polarity to a polarity of the toner. The bias voltage to be applied by the voltage applicator to the first cleaner is higher than a voltage which allows the first cleaner to remove maximum amount of the toner.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 5, 2015
    Inventors: Taichi MEGURO, Shigetaka KUROSU, Sachie MATSUDAIRA, Tomohide MORI
  • Patent number: 6701123
    Abstract: A cleaning device for cleaning a toner from a surface of a cylindrical latent image carrier having; a cleaning blade mechanism which includes a cleaning blade arranged so that a tip edge portion on a first surface of the cleaning blade contacts with the surface of the cylindrical latent image carrier, and a supporting member positioned on a second surface at a base end portion of the cleaning blade to urge the cleaning blade to contact with the surface of the cylindrical latent image carrier; and a laminar vibration-damping member whose base end portion is held by the supporting member on the second surface of the cleaning blade, wherein, on a tip end portion of the vibration-damping member, a plurality of slits are formed so that a plurality of tab portions are formed to be arranged in the axial direction of the cylindrical latent image carrier.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: March 2, 2004
    Assignee: Konica Corporation
    Inventors: Isao Endo, Sachie Matsudaira, Junichi Otani, Toru Makino, Chohiko Fukuo, Kazuhiko Sato, Fumitaka Mochizuki
  • Publication number: 20030035668
    Abstract: A cleaning device for cleaning a toner from a surface of a cylindrical latent image carrier having; a cleaning blade mechanism which includes a cleaning blade arranged so that a tip edge portion on a first surface of the cleaning blade contacts with the surface of the cylindrical latent image carrier, and a supporting member positioned on a second surface at a base end portion of the cleaning blade to urge the cleaning blade to contact with the surface of the cylindrical latent image carrier; and a laminar vibration-damping member whose base end portion is held by the supporting member on the second surface of the cleaning blade, wherein, on a tip end portion of the vibration-damping member, a plurality of slits are formed so that a plurality of tab portions are formed to be arranged in the axial direction of the cylindrical latent image carrier.
    Type: Application
    Filed: July 25, 2002
    Publication date: February 20, 2003
    Inventors: Isao Endo, Sachie Matsudaira, Junichi Otani, Toru Makino, Chohiko Fukuo, Kazuhiko Sato, Fumitaka Mochizuki