Patents by Inventor Kenji Kanai

Kenji Kanai 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: 11048193
    Abstract: A pressure device includes: a first pressure element; a second pressure element that is disposed so as to oppose the first pressure element and that applies pressure to a medium nipped between the first pressure element and the second pressure element; a moving device that moves the second pressure element toward and away from the first pressure element, between a contact position and a retracted position; an urging member that urges the first pressure element toward the second pressure element when the second pressure element is located at the contact position; and a driving device that applies a driving force to the second pressure element, thus allowing the first pressure element to rotate in a driven manner when the second pressure element is located at the contact position.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: June 29, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventor: Kenji Kanai
  • Patent number: 9939777
    Abstract: An attachment structure for an attachable body includes an attachable body, a connecting unit, a first regulating device, and a second regulating device. The attachable body is attachable to an apparatus body and has a leading end and a trailing end in an attachment direction in which the attachable body is attached to the apparatus body. The connecting unit is provided on a leading end side of the attachable body in the attachment direction. The connecting unit is connected to the apparatus body. The first regulating device regulates a movement of the attachable body in the attachment direction from a trailing end side. The second regulating device is provided at a position closer to the connecting unit than to the first regulating device in a perpendicular direction perpendicular to the attachment direction. The second regulating device regulates the movement of the attachable body.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: April 10, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shogo Kamiya, Kenji Kanai, Yasunori Fujimoto, Masakatsu Eda
  • Publication number: 20180059614
    Abstract: An attachment structure for an attachable body includes an attachable body, a connecting unit, a first regulating device, and a second regulating device. The attachable body is attachable to an apparatus body and has a leading end and a trailing end in an attachment direction in which the attachable body is attached to the apparatus body. The connecting unit is provided on a leading end side of the attachable body in the attachment direction. The connecting unit is connected to the apparatus body. The first regulating device regulates a movement of the attachable body in the attachment direction from a trailing end side. The second regulating device is provided at a position closer to the connecting unit than to the first regulating device in a perpendicular direction perpendicular to the attachment direction. The second regulating device regulates the movement of the attachable body.
    Type: Application
    Filed: March 2, 2017
    Publication date: March 1, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shogo KAMIYA, Kenji KANAI, Yasunori FUJIMOTO, Masakatsu EDA
  • Publication number: 20170357194
    Abstract: A transport device includes: a first rotational member; a second rotational member that forms a nip with the first rotational member; a guide member that guides the medium in a predetermined direction; a changing part that supports the second rotational member so as to be rotatable and that moves the second rotational member to change a nip state between the second rotational member and the first rotational member; and an interposed member supported by the changing part and nipped between the first rotational member and the guide member, the interposed member including, in an intersecting direction intersecting a direction in which the interposed member is nipped, multiple portions having different thicknesses, the interposed member being nipped at any one of the multiple portions, while being moved in the intersecting direction in accordance with the movement of the second rotational member.
    Type: Application
    Filed: November 16, 2016
    Publication date: December 14, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kenji KANAI, Shogo KAMIYA, Keisuke HIDAKA
  • Patent number: 9841710
    Abstract: A transport device includes: a first rotational member; a second rotational member that forms a nip with the first rotational member; a guide member that guides the medium in a predetermined direction; a changing part that supports the second rotational member so as to be rotatable and that moves the second rotational member to change a nip state between the second rotational member and the first rotational member; and an interposed member supported by the changing part and nipped between the first rotational member and the guide member, the interposed member including, in an intersecting direction intersecting a direction in which the interposed member is nipped, multiple portions having different thicknesses, the interposed member being nipped at any one of the multiple portions, while being moved in the intersecting direction in accordance with the movement of the second rotational member.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 12, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kenji Kanai, Shogo Kamiya, Keisuke Hidaka
  • Patent number: 9696679
    Abstract: An image forming apparatus includes a fixing device and an image forming apparatus body. The fixing device includes a pressure unit, a heating unit, a pressure adjuster that adjusts a pressure between the pressure unit and the heating unit, and a fixing-device-side connecting device. The image forming apparatus body to which the fixing device is detachably attached includes an electrical power unit, a drive device to which electrical power is supplied from the electrical power unit so as to drive the pressure adjuster, and a body-side connecting device connected to the electrical power unit. When the fixing device is detached from the image forming apparatus body, the body-side connecting device and the fixing-device-side connecting device are disconnected from each other and electrical power supply to the drive device is interrupted.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: July 4, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kenji Kanai
  • Patent number: 9645539
    Abstract: A decurler includes an endless decurling belt that is disposed so as to face an image surface of a recording medium to which an image has been thermally fixed, a decurling roller that contacts the decurling belt so as to form a decurling region between the decurling roller and the decurling belt, and a support member that is made of a thermally conductive synthetic resin having a thermal conductivity of 1 (W/mK) or higher and that directly or indirectly contacts the decurling belt.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: May 9, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kenji Kanai, Shinichi Aizawa
  • Publication number: 20170090394
    Abstract: An image forming apparatus includes a fixing device and an image forming apparatus body. The fixing device includes a pressure unit, a heating unit, a pressure adjuster that adjusts a pressure between the pressure unit and the heating unit, and a fixing-device-side connecting device. The image forming apparatus body to which the fixing device is detachably attached includes an electrical power unit, a drive device to which electrical power is supplied from the electrical power unit so as to drive the pressure adjuster, and a body-side connecting device connected to the electrical power unit. When the fixing device is detached from the image forming apparatus body, the body-side connecting device and the fixing-device-side connecting device are disconnected from each other and electrical power supply to the drive device is interrupted.
    Type: Application
    Filed: February 29, 2016
    Publication date: March 30, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Kenji KANAI
  • Publication number: 20160282793
    Abstract: A decurler includes an endless decurling belt that is disposed so as to face an image surface of a recording medium to which an image has been thermally fixed, a decurling roller that contacts the decurling belt so as to form a decurling region between the decurling roller and the decurling belt, and a support member that is made of a thermally conductive synthetic resin having a thermal conductivity of 1(W/mK) or higher and that directly or indirectly contacts the decurling belt.
    Type: Application
    Filed: September 14, 2015
    Publication date: September 29, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kenji KANAI, Shinichi AIZAWA
  • Patent number: 9098043
    Abstract: An image forming apparatus includes a fixing device that is attachable to and detachable from an apparatus body and fixes a developer image onto a recording medium; a setting unit that is provided in the fixing device and in which a size of a recording medium to be used in the fixing device is set; an acquiring unit that is provided in the apparatus body and acquires size information of a recording medium onto which the developer image is to be fixed; a determining unit that compares the size of the recording medium set in the setting unit with the size of the recording medium acquired by the acquiring unit so as to determine whether or not a fixing process is performable by the fixing device; and a notifying unit that at least provides notification of a negative determination result obtained by the determining unit.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 4, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Norio Ogawahara, Kenji Kanai
  • Patent number: 8699918
    Abstract: A fixing device includes a fixing member that is rotated by a driving unit and that fixes a developer image on a recording medium; an external heating member that is driven and rotated while contacting an outer peripheral surface of the fixing member, and that heats the fixing member; a moving unit that moves the external heating member between a separation position and a contact position, and that moves the external heating member from the separation position to the contact position after starting the fixing by the fixing member; a drive transmitting mechanism including a fixing-side gear, an external-heating-member-side gear, and a drive transmitting member; and a driving force transmitting/non-transmitting unit that is provided at the drive transmitting mechanism.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: April 15, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenji Kanai, Yasuyuki Kobayashi, Masakatsu Eda
  • Patent number: 8643912
    Abstract: A driving mechanism includes: a first contacting member that comes into contact with a contacted member; a supporting member that supports the first contacting member and is reciprocatably provided, the supporting member moving the first contacting member into contact with or retracts from the contacted member; a cam that reciprocates the supporting member; and a driving force transmission member that is provided to transmit a driving force to the cam, the driving force transmission member is engaged with the cam by transmit a first driving force, and is disengaged from the cam by a second driving force. In the driving mechanism, the second driving force is applied to the driving force transmission member after the cam is stopped in a state where the cam comes into contact with the supporting member on a small radius end of the cam.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: February 4, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenji Kanai, Masakatsu Eda, Tatsunori Izawa, Yasushi Nagata
  • Publication number: 20130322900
    Abstract: An image forming apparatus includes a fixing device that is attachable to and detachable from an apparatus body and fixes a developer image onto a recording medium; a setting unit that is provided in the fixing device and in which a size of a recording medium to be used in the fixing device is set; an acquiring unit that is provided in the apparatus body and acquires size information of a recording medium onto which the developer image is to be fixed; a determining unit that compares the size of the recording medium set in the setting unit with the size of the recording medium acquired by the acquiring unit so as to determine whether or not a fixing process is performable by the fixing device; and a notifying unit that at least provides notification of a negative determination result obtained by the determining unit.
    Type: Application
    Filed: December 7, 2012
    Publication date: December 5, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Norio OGAWAHARA, Kenji KANAI
  • Patent number: 8509666
    Abstract: A fixing device includes: a first rotating member; a second rotating member that extends along the first rotating member, sandwiches a recording medium with a toner image formed thereon between the first and second rotating members, rotates together with the first rotating member, and heats the recording medium to fix the toner image on the recording medium; a heating device whose circumferential surface circularly moves while contacting an external circumferential surface of the second rotating member, and the heating device heats the second rotating member; a temperature detecting device disposed to face the external circumferential surface of the second rotating member without contacting the external circumferential surface to detect a temperature thereof; and a cleaning device cleaning the circumferential surface of the heating device and disposed between the heating device and the temperature detecting device along the surface of the second rotating member.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 13, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuyuki Kobayashi, Kenji Kanai, Masakatsu Eda, Norio Ogawahara
  • Patent number: 8422927
    Abstract: A fixing device includes: a fixing member that fixes a developer image on a recording medium while rotating; an external heating member that heats the fixing member, the external heating member being driven-rotated by rotation of the fixing member while contacting with an outer peripheral face of the fixing member; an oil supply member that supplies oil to a surface of the external heating member; a switching unit that switches between contact and non-contact of the external heating member to the outer peripheral face of the fixing member, the switching unit causing the external heating member to contact with the outer peripheral face of the fixing member after a fixing operation by the fixing member is started; and a rotation mechanism that rotates the fixing member and rotates the external heating member in a state where the external heating member is separated from the fixing member by the switching unit.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 16, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuyuki Kobayashi, Kenji Kanai, Masakatsu Eda
  • Patent number: 8391765
    Abstract: A fixing device includes: a rotating member supporting section supporting a first rotating member rotatably and movable in direction in which the first rotating member approaches and leaves a second rotating member; a compression spring pushing the rotating member supporting section in the direction of approaching the second rotating member; and a pressing member pressing the compression spring to the rotating member supporting section.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: March 5, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenji Kanai, Masakatsu Eda
  • Publication number: 20130011160
    Abstract: A fixing device includes a fixing member that is rotated by a driving unit and that fixes a developer image on a recording medium; an external heating member that is driven and rotated while contacting an outer peripheral surface of the fixing member, and that heats the fixing member; a moving unit that moves the external heating member between a separation position and a contact position, and that moves the external heating member from the separation position to the contact position after starting the fixing by the fixing member; a drive transmitting mechanism including a fixing-side gear, an external-heating-member-side gear, and a drive transmitting member; and a driving force transmitting/non-transmitting unit that is provided at the drive transmitting mechanism.
    Type: Application
    Filed: March 9, 2012
    Publication date: January 10, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kenji Kanai, Yasuyuki Kobayashi, Masakatsu Eda
  • Publication number: 20120033266
    Abstract: A driving mechanism includes: a first contacting member that comes into contact with a contacted member; a supporting member that supports the first contacting member and is reciprocatably provided, the supporting member moving the first contacting member into contact with or retracts from the contacted member; a cam that reciprocates the supporting member; and a driving force transmission member that is provided to transmit a driving force to the cam, the driving force transmission member is engaged with the cam by transmit a first driving force, and is disengaged from the cam by a second driving force. In the driving mechanism, the second driving force is applied to the driving force transmission member after the cam is stopped in a state where the cam comes into contact with the supporting member on a small radius end of the cam.
    Type: Application
    Filed: February 15, 2011
    Publication date: February 9, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kenji KANAI, Masakatsu EDA, Tatsunori IZAWA, Yasushi NAGATA
  • Publication number: 20110311285
    Abstract: A fixing device includes: a fixing member that fixes a developer image on a recording medium while rotating; an external heating member that heats the fixing member, the external heating member being driven-rotated by rotation of the fixing member while contacting with an outer peripheral face of the fixing member; an oil supply member that supplies oil to a surface of the external heating member; a switching unit that switches between contact and non-contact of the external heating member to the outer peripheral face of the fixing member, the switching unit causing the external heating member to contact with the outer peripheral face of the fixing member after a fixing operation by the fixing member is started; and a rotation mechanism that rotates the fixing member and rotates the external heating member in a state where the external heating member is separated from the fixing member by the switching unit.
    Type: Application
    Filed: January 14, 2011
    Publication date: December 22, 2011
    Inventors: Yasuyuki Kobayashi, Kenji Kanai, Masakatsu Eda
  • Publication number: 20110236082
    Abstract: A fixing device includes: a first rotating member; a second rotating member that extends along the first rotating member, sandwiches a recording medium with a toner image formed thereon between the first and second rotating members, rotates together with the first rotating member, and heats the recording medium to fix the toner image on the recording medium; a heating device whose circumferential surface circularly moves while contacting an external circumferential surface of the second rotating member, and the heating device heats the second rotating member; a temperature detecting device disposed to face the external circumferential surface of the second rotating member without contacting the external circumferential surface to detect a temperature thereof; and a cleaning device cleaning the circumferential surface of the heating device and disposed between the heating device and the temperature detecting device along the surface of the second rotating member.
    Type: Application
    Filed: November 8, 2010
    Publication date: September 29, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasuyuki KOBAYASHI, Kenji KANAI, Masakatsu EDA, Norio OGAWAHARA