Patents by Inventor Satoshi Haneda

Satoshi Haneda 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: 5966569
    Abstract: An image forming apparatus includes an image forming body for carrying thereon a toner image, and a belt-shaped intermediate transfer body for carrying thereon the toner image transferred from the image forming body. A first transfer device is provided for transferring another toner image carried by the image forming body onto an obverse side of a recording sheet conveyed by the intermediate transfer body, and a second transfer device is provided for transferring the toner image carried on the intermediate transfer body onto a reverse side of the recording sheet. In addition, a fixing device is provided for fixing the toner images transferred on both sides of the recording sheet which is separated from the intermediate transfer body, and a conveyor portion having spurred wheels is provided between the intermediate transfer body and the fixing device for conveying the transfer member to the fixing device. The apparatus has a structure including two frames which can be opened.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: October 12, 1999
    Assignee: Konica Corporation
    Inventor: Satoshi Haneda
  • Patent number: 5930002
    Abstract: An image forming apparatus comprises a photoreceptor drum, a supporting member provided inside the photoreceptor drum and supporting plural exposure devices; and a signal passage to transmit an image signal to the plural exposure devices. The signal passage connects the outside and the inside of the photoreceptor drum by passing a part of the supporting member.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: July 27, 1999
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Hisayoshi Nagase, Hiroyuki Tokimatsu, Masahiro Onodera, Shuta Hamada, Toshihide Miura
  • Patent number: 5930572
    Abstract: An apparatus for forming a toner image on a sheet, comprises first and second process units each comprising a photoreceptor, a charging device, an imagewise exposing device, and a developing device. The first process unit forms a first toner image on its photoreceptor and the second process unit forms a second toner image on its photoreceptor. A rotatable intermediate transfer member has a toner image receiving surface, and the first and second process units are located in close proximity to the toner image receiving surface of the rotatable intermediate transfer member. A second transfer device transfers the second toner image from the second process unit to the toner image receiving surface. A sheet feeder feeds the sheet to the toner image receiving surface so that the second side of the sheet is provided with the second toner image; and a first transfer device transfers the first toner image from the first process unit to the first side of the sheet on the toner image receiving surface.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: July 27, 1999
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Kunio Shigeta
  • Patent number: 5920744
    Abstract: An apparatus for forming images on at least one surface of a sheet includes a reader for reading image information on documents, a memory for storing image signals output by the reader, and an image forming unit for selectively forming one of: (i) two page toner images corresponding to the image signals of two pages of the documents separately on two image carrying members, and (ii) a single toner image on one of the two image carrying members. A jam detector detects a jammed sheet, and a delivery detector detects delivery of a copied sheet to outside the apparatus. Image signals are eliminated from memory in accordance with a progression of image formation.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: July 6, 1999
    Assignee: Konica Corporation
    Inventors: Akitoshi Matsubara, Masakazu Fukuchi, Tadayoshi Ikeda, Satoshi Haneda, Kunio Shigeta, Yotaro Sato
  • Patent number: 5905931
    Abstract: An apparatus for forming toner images on both sides of a sheet includes a first transfer device which transfers a toner image from a rotatable image forming body onto a rotatable intermediate transfer member or onto the first side of a sheet; a second transfer device which transfers a toner image from the rotatable intermediate transfer member onto the second side of the sheet; and a fixing device which fixes the toner image on the first side of the sheet and the toner image on the second side of the sheet simultaneously. The sheet is conveyed to the first transfer device and to the second transfer device by the rotatable intermediate transfer member, is separated at a separating section from the rotatable intermediate transfer member, and is brought to the fixing device. The second transfer device is located between the first transfer device and the separating section, and a conductive member is located opposite the second transfer device.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: May 18, 1999
    Assignee: Konica Corporation
    Inventors: Kunio Shigeta, Yotaro Sato, Satoshi Haneda, Hisayoshi Nagase, Toshihide Miura
  • Patent number: 5899611
    Abstract: An apparatus for forming a toner image on both sides of a sheet, includes a photoreceptor on which a first toner image and a second toner image are formed by toner image forming devices; a second image carrying belt onto which the second toner image is transferred from the photoreceptor; a first transferring device to transfer the first toner image from the photoreceptor to a first side of the sheet; a second transferring device to transfer the second toner image from the second image carrying belt to a second side of the sheet; a fixing device having a first fixing roller for fixing the first toner image onto the first side of the sheet and a second fixing roller for fixing the second toner image onto the second side of the sheet, the first fixing roller coming in contact with the second fixing roller so as to form a nip section therebetween; the second image carrying belt having a flat belt surface on which the sheet is conveyed from the photoreceptor toward a separating section at which the sheet is separa
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: May 4, 1999
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Yotaro Sato, Kunio Shigeta
  • Patent number: 5886728
    Abstract: An image forming apparatus has an image forming body which is rotatable in a subsidiary scanning direction. A plurality of imagewise exposure devices for imagewise exposing the image forming body are arranged to face the image forming body and to be aligned in a straight line in a primary scanning direction perpendicular to the subsidiary scanning direction of the image forming body. A common supporting member is provided for supporting the plurality of exposure devices, and bearing members are provided on first and second ends of the common supporting member. The plurality of exposure devices are: (i) radially arranged on the common supporting member with respect to a rotation axis of the image forming body, and (ii) fixed on the supporting member with respect to the bearing members, and the image forming body is rotatable against the common supporting member through the bearing members.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: March 23, 1999
    Assignee: Konica Corporation
    Inventors: Shuta Hamada, Satoshi Haneda, Hisayoshi Nagase, Hiroyuki Tokimatsu, Masahiro Onodera, Toshihide Miura
  • Patent number: 5875372
    Abstract: An image forming apparatus includes a first image carrier on which a toner image forming device forms a toner image; a second image carrier provided opposite to the first image carrier, onto which the toner image on the first image carrier is transferred; first and second transfer devices for transferring the toner image on the first and second image carriers onto one side and the other side of a transfer material, respectively; and a fixing device for fixing the toner images on both sides of the transfer material transferred respectively by the first and second transfer devices. The fixing device includes first and second fixing members provided opposite to one side and the other side of the transfer material, respectively, wherein the transfer material passes between the first and second fixing members, and first and second sensors are provided for detecting temperature of the first and second fixing members respectively.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: February 23, 1999
    Assignee: Konica Corporation
    Inventors: Yotaro Sato, Kunio Shigeta, Satoshi Haneda, Akitoshi Matsubara, Tadayoshi Ikeda, Masakazu Fukuchi
  • Patent number: 5850247
    Abstract: An image forming apparatus having an exposure optical system provided with an exposure light source in which light-emitting elements are arranged on a base plate to be line-shaped and with a lens array of a distributed refractive index type that converges a beam emitted from the exposure light source on the surface of a photoreceptor and conducts imagewise exposure. The apparatus is configured to satisfy the expression: ##EQU1## In the expression, .DELTA.T1 represents a variation width (K) of the temperature in the vicinity of light-emitting elements, R represents a radius of the photoreceptor mentioned above, Ri represents a length (.mu.m) of each member constituting the exposure optical system in the radial direction of the photoreceptor, .alpha. represents a coefficient of linear thermal expansion (.degree.C..sup.-1) of a transparent base that forms the photoreceptor, .alpha.i represents a coefficient of linear thermal expansion (.degree.C..sup.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: December 15, 1998
    Assignee: Konica Corporation
    Inventors: Shuta Hamada, Satoshi Haneda, Hisayoshi Nagase, Hiroyuki Tokimatsu, Masahiro Onodera, Toshihide Miura
  • Patent number: 5840461
    Abstract: A method of producing a substrate for a photoreceptor having an exposing device therein for use in an electrophotographic apparatus, including the steps of: injecting polymerizable liquid material into a die whose inner surface is cylindrical; polymerizing the polymerizable liquid material while rotating and heating the die so that a substrate is formed inside the die; and removing the substrate from the die after the polymerizing, wherein the polymerizable liquid material is a transparent resin material and a thickness of the substrate is controlled according to an injecting amount of the polymerizable liquid material.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: November 24, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Hisayoshi Nagase, Hiroyuki Tokimatsu, Masahiro Onodera, Shuta Hamada, Toshihide Miura, Fumitaka Mochizuki
  • Patent number: 5826143
    Abstract: An image forming apparatus for forming images corresponding to image data of plural pages.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: October 20, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Kunio Shigeta, Yotaro Sato, Masakazu Fukuchi, Akitoshi Matsubara, Tadayoshi Ikeda
  • Patent number: 5822666
    Abstract: An apparatus for forming an image on a sheet member includes a photoreceptor drum on which a first toner image and a second toner image are separately formed; an image carrying belt on which the second toner image is transferred from the photoreceptor drum; a first transfer device to transfer the first toner image from the photoreceptor drum to a first side of the sheet member; a second transfer device to transfer the second toner image from the image carrying belt to the other side of the sheet member; and a cleaner capable of being brought in contact with anal separated from the image carrying belt. The cleaner is brought in contact with the image carrying belt after the first toner image is transferred from the photoreceptor drum to the first side of the sheet member.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: October 13, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Kunio Shigeta, Yotaro Sato, Tadayoshi Ikeda, Masakazu Fukuchi, Akitoshi Matsubara
  • Patent number: 5799226
    Abstract: An image forming apparatus includes: a toner image forming device to form a toner image on a first image carrier; a first transfer device to transfer the toner image on the first image carrier onto a second image carrier provided opposite to the first image carrier to carry a transferred toner image, or to transfer the toner image on the first image carrier onto one side of a transfer material; a second transfer device to transfer the toner image carried on the second image carrier onto the other side of the material; a fixing device to fix at least one of the toner image on the one side of the transfer material and the toner image on the other side of the transfer material; and a control device to control the toner image forming device, the first transfer device and the second transfer device.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: August 25, 1998
    Assignee: Konica Corporation
    Inventors: Kunio Shigeta, Yotaro Sato, Satoshi Haneda
  • Patent number: 5784666
    Abstract: In a color image forming apparatus, wherein plural toner images are superimposed on the photoreceptor during a single rotation of the photoreceptor by a plurality of charging devices, image exposing means and developing means, each of the plurality of image exposing means comprises an array-shaped plural elements aligned in the axial direction of the photoreceptor and the color image forming apparatus further comprises heating means or heat absorbing means provided for each of the plurality of image exposing means and control means for controlling a temperature of each of the plurality of image exposing means independently of others by the heating means or the heat absorbing means.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: July 21, 1998
    Assignee: Konica Corporation
    Inventors: Hisayoshi Nagase, Shuta Hamada, Hiroyuki Tokimatsu, Satoshi Haneda, Toshihide Miura
  • Patent number: 5784672
    Abstract: A color image forming apparatus including: an image forming body rotating about a rotary axis; a plurality of imagewise exposure devices mounted on an optical system supporting body and provided inside the image forming body for imagewise exposing the image forming body, wherein the image forming body is integrally formed with the optical system supporting body; a plurality of developing units provided around the image forming body; a suspending member for suspending the optical system supporting body; and guiding member for guiding the suspending member so that the image forming body is pulled out in a direction of the rotary axis of the image forming body.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: July 21, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Hisayoshi Nagase, Hiroyuki Tokimatsu, Masahiro Onodera, Shuta Hamada, Toshihide Miura
  • Patent number: 5761573
    Abstract: In an image forming apparatus provided with a photoreceptor on which a obverse toner image is formed, a toner image receiving body on which a reverse toner image is transferred from the photoreceptor, and transfer devices to transfer the obverse image onto one side of a sheet and to transfer the reverse image onto the other side of the sheet. An image forming condition for the reverse image is changed to be different from that for the obverse image.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: June 2, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Kunio Shigeta, Yotaro Sato, Masakazu Fukuchi, Akitoshi Matsubara, Tadayoshi Ikeda
  • Patent number: 5758204
    Abstract: An image forming apparatus has a photoreceptor drum and a toner image receptor for forming toner images on both sides of a transfer sheet.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: May 26, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Kunio Shigeta, Yotaro Sato, Tadayoshi Ikeda, Masakazu Fukuchi, Akitoshi Matsubara
  • Patent number: 5758243
    Abstract: An image forming apparatus includes a rotary image forming body; a charger provided around the image forming body for charging the image forming body; a plurality of imagewise exposure devices for imagewise exposing the charged image forming body to form respective latent images thereon; and a plurality of developing devices for developing the respective latent images formed on the image forming body to form respective toner images. A plurality of different color toner images thus formed by the respective chargers, the respective imagewise exposure devices and the respective developing devices are superimposed on the image forming body, thereby a color toner image is formed. The image forming apparatus further includes a transfer device for transferring the color toner image on the image forming body onto a transfer member; a cleaning device for removing a residual toner on the image forming body; a support member for supporting the plurality of exposure devices.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: May 26, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Hisayoshi Nagase, Hiroyuki Tokimatsu, Masahiro Onodera, Shuta Hamada, Toshihide Miura
  • Patent number: 5754210
    Abstract: An optical system assembling method in an image forming apparatus in which there are provided an image forming body around which a plurality of exposure device each having a linear exposure optical system to imagewise expose on the image forming body, and a plurality of developing device containing respective color toners different from each other which are superimposed on the image forming body to form a color toner image, the method further having the steps of: lighting the exposure optical system; forming an image emitted from the exposure optical system on a sensor which is disposed at a position corresponding to a photosensitive surface of the image forming body with respect to the exposure optical system; adjusting a position of the exposure optical system on the basis of a result of the image forming so that a focal point of the exposure optical system is coincident with a surface of the sensor; and fixing at the adjusted position the exposure optical system to an optical system supporting body provide
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: May 19, 1998
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Tadayoshi Ikeda, Masakazu Fukuchi, Shuta Hamada, Hisayoshi Nagase, Hiroyuki Tokimatsu, Toshihide Miura
  • Patent number: RE36304
    Abstract: A method of reproducing multiplex images wherein an electrostatic image is formed on an image retainer by using a common electrostatic image forming device, the electrostatic image formed on the image retainer is developed, the steps of the above are repeated to superpose a plurality of toner images on the image retainer, and the toner images is transferred on a recording paper by one step. The developings other than the first time developing are carried out in such a manner that the surface of a developer layer on a developer feeding carrier does not contact with the surface of the toner image on the image retainer.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: September 14, 1999
    Assignee: Konica Corporation
    Inventors: Satoshi Haneda, Hisashi Shoji, Seiichiro Hiratsuka