Patents by Inventor Junichi Ochi

Junichi Ochi 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: 10054890
    Abstract: An image forming apparatus includes a main assembly including an image forming portion; a rotatable member capable of feeding a sheet and configured to rotate; and a detecting unit including an interrelating member configured to rotate in interrelation with rotation of the rotatable member, a detecting member configured to detect rotation of the interrelating member, and a holding member configured to integrally hold the interrelating member and the detecting member. The interrelating member, the detecting member and the holding member are integrally assembled into a unit. The detecting unit is detachably mountable to the main assembly.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: August 21, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junichi Ochi
  • Patent number: 9964911
    Abstract: Included are an output member including a coupling allowed to be engaged with a unit; an input member; an input-side engagement member; an output-side engagement member allowed to be engaged with the input-side engagement member; an elastic member urging the input-side engagement member toward the output-side engagement member; and a disengagement member which moves the input-side engagement member at an engaged position, at which engagement with the output-side engagement member is allowed, to a disengaged position at which engagement with the output-side engagement member is released. In each of a state where the input-side engagement member is at the engaged position and a state where the input-side engagement member is at the disengaged position, a space is formed in which the output-side engagement member is allowed to move in the shaft direction when the output member is pressed to the shaft direction.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: May 8, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junichi Ochi
  • Patent number: 9891580
    Abstract: An elastic force of an elastic member 11 required for rotating a driven rotational body 8b is decreased. A first rotational body 8d and a second rotational body 9a arranged downstream of a driven rotational body 8b in a drive train that transmits a driving force from a driving rotational body 7 to a driven member 4 are included. The first rotational body 8d rotates in synchronization with the driven rotational body 8b. The second rotational body 9a is rotated by the first rotational body 8d and rotates the driven member 4. The first rotational body 8d rotates without rotating the second rotational body 9a when the driven rotational body 8b rotates by an elastic force of an elastic member 11.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: February 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideto Chino, Junichi Ochi
  • Patent number: 9857749
    Abstract: The conveyance apparatus includes a first engaging portion of a first planetary gear unit and a second engaging portion of a second planetary gear unit, and a stopping member movable to a first stop position to stop a first engaged gear, and to a second stop position to stop a second engagement gear, in which a pivot fulcrum of the stopping member is arranged at an intersection between an extension line of a vector of a force that the first engaging portion receives from the first engaged portion under a state in which the stopping member is at the first stop position, and an extension line of a vector of a force that the second engaging portion receives from the second engaged portion under a state in which the stopping member is at the second stop position.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: January 2, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junichi Ochi
  • Publication number: 20170371295
    Abstract: An elastic force of an elastic member 11 required for rotating a driven rotational body 8b is decreased. A first rotational body 8d and a second rotational body 9a arranged downstream of a driven rotational body 8b in a drive train that transmits a driving force from a driving rotational body 7 to a driven member 4 are included. The first rotational body 8d rotates in synchronization with the driven rotational body 8b. The second rotational body 9a is rotated by the first rotational body 8d and rotates the driven member 4. The first rotational body 8d rotates without rotating the second rotational body 9a when the driven rotational body 8b rotates by an elastic force of an elastic member 11.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Hideto Chino, Junichi Ochi
  • Publication number: 20170322507
    Abstract: An image forming apparatus includes a main assembly including an image forming portion; a rotatable member capable of feeding a sheet and configured to rotate; and a detecting unit including an interrelating member configured to rotate in interrelation with rotation of the rotatable member, a detecting member configured to detect rotation of the interrelating member, and a holding member configured to integrally hold the interrelating member and the detecting member. The interrelating member, the detecting member and the holding member are integrally assembled into a unit. The detecting unit is detachably mountable to the main assembly.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 9, 2017
    Inventor: Junichi Ochi
  • Publication number: 20170248171
    Abstract: A drive transmission device includes: a first rotating member that rotates with driving power received from a driving source, a second rotating member that rotates with driving power from the first rotating member, and a driving-side engagement member and a driven-side engagement member for transmitting the driving power of the first rotating member to the second rotating member, wherein the driving-side engagement member and the driven-side engagement member engage with each other in a state in which the first rotating member is rotating whereby a power applying portion and a power receiving portion engage with each other while resisting against a second biasing power.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 31, 2017
    Inventors: Koji Kawamura, Junichi Ochi, Joji Goto
  • Publication number: 20160274526
    Abstract: Included are an output member including a coupling allowed to be engaged with a unit; an input member; an input-side engagement member; an output-side engagement member allowed to be engaged with the input-side engagement member; an elastic member urging the input-side engagement member toward the output-side engagement member; and a disengagement member which moves the input-side engagement member at an engaged position, at which engagement with the output-side engagement member is allowed, to a disengaged position at which engagement with the output-side engagement member is released. In each of a state where the input-side engagement member is at the engaged position and a state where the input-side engagement member is at the disengaged position, a space is formed in which the output-side engagement member is allowed to move in the shaft direction when the output member is pressed to the shaft direction.
    Type: Application
    Filed: March 16, 2016
    Publication date: September 22, 2016
    Inventor: Junichi Ochi
  • Patent number: 9446923
    Abstract: Provided is a sheet conveying apparatus including: a pair of rollers which includes an upper roller and a lower roller and conveys a sheet in a nipping manner; a driving unit which independently drives the upper roller and the lower roller; a conveying unit which is disposed at the upstream of the pair of rollers in the sheet conveying direction and conveys the sheet to the pair of rollers; an overlapping unit which is provided between the pair of rollers and the conveying unit and overlaps a subsequent sheet on a precedent sheet in the conveying direction; and a control unit which controls the driving unit, wherein the control unit controls the driving unit so that: the upper roller and the lower roller are driven before a leading end of the precedent sheet conveyed by the conveying unit reaches the pair of rollers and the driving of the upper roller and the lower roller is stopped before a tail end of the precedent sheet passes the pair of rollers; the pair of rollers is driven again before a leading end of
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: September 20, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masatoshi Yoshida, Hiroharu Tsuji, Tomooku Koyama, Takuya Keino, Junichi Ochi
  • Publication number: 20160209783
    Abstract: An elastic force of an elastic member 11 required for rotating a driven rotational body 8b is decreased. A first rotational body 8d and a second rotational body 9a arranged downstream of a driven rotational body 8b in a drive train that transmits a driving force from a driving rotational body 7 to a driven member 4 are included. The first rotational body 8d rotates in synchronization with the driven rotational body 8b. The second rotational body 9a is rotated by the first rotational body 8d and rotates the driven member 4. The first rotational body 8d rotates without rotating the second rotational body 9a when the driven rotational body 8b rotates by an elastic force of an elastic member 11.
    Type: Application
    Filed: January 6, 2016
    Publication date: July 21, 2016
    Inventors: Hideto Chino, Junichi Ochi
  • Patent number: 9309075
    Abstract: A conveying portion includes a pair of superimposing rollers and a controller which controls the rotation of the pair of superimposing rollers, wherein the controller controls a rotation of a pair of conveying rollers so that a tail end of a first sheet passes a nip portion between the pair of conveying rollers by conveying the first sheet to the downstream side before a leading end of a third sheet superimposed on a second sheet reaches the nip portion between the pair of conveying rollers nipping the first sheet and the second sheet superimposed on the first sheet.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: April 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichi Ochi, Hiroharu Tsuji, Tomooku Koyama, Takuya Keino
  • Publication number: 20150301492
    Abstract: The conveyance apparatus includes a first engaging portion of a first planetary gear unit and a second engaging portion of a second planetary gear unit, and a stopping member movable to a first stop position to stop a first engaged gear, and to a second stop position to stop a second engagement gear, in which a pivot fulcrum of the stopping member is arranged at an intersection between an extension line of a vector of a force that the first engaging portion receives from the first engaged portion under a state in which the stopping member is at the first stop position, and an extension line of a vector of a force that the second engaging portion receives from the second engaged portion under a state in which the stopping member is at the second stop position.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Inventor: Junichi Ochi
  • Publication number: 20140284875
    Abstract: A conveying portion includes a pair of superimposing rollers and a controller which controls the rotation of the pair of superimposing rollers, wherein the controller controls a rotation of a pair of conveying rollers so that a tail end of a first sheet passes a nip portion between the pair of conveying rollers by conveying the first sheet to the downstream side before a leading end of a third sheet superimposed on a second sheet reaches the nip portion between the pair of conveying rollers nipping the first sheet and the second sheet superimposed on the first sheet.
    Type: Application
    Filed: October 5, 2012
    Publication date: September 25, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Junichi Ochi, Hiroharu Tsuji, Tomooku Koyama, Takuya Keino
  • Publication number: 20140239580
    Abstract: Provided is a sheet conveying apparatus including: a pair of rollers which includes an upper roller and a lower roller and conveys a sheet in a nipping manner; a driving unit which independently drives the upper roller and the lower roller; a conveying unit which is disposed at the upstream of the pair of rollers in the sheet conveying direction and conveys the sheet to the pair of rollers; an overlapping unit which is provided between the pair of rollers and the conveying unit and overlaps a subsequent sheet on a precedent sheet in the conveying direction; and a control unit which controls the driving unit, wherein the control unit controls the driving unit so that: the upper roller and the lower roller are driven before a leading end of the precedent sheet conveyed by the conveying unit reaches the pair of rollers and the driving of the upper roller and the lower roller is stopped before a tail end of the precedent sheet passes the pair of rollers; the pair of rollers is driven again before a leading end of
    Type: Application
    Filed: December 4, 2012
    Publication date: August 28, 2014
    Inventors: Masatoshi Yoshida, Hiroharu Tsuji, Tomooku Koyama, Takuya Keino, Junichi Ochi
  • Patent number: 8559844
    Abstract: An image forming apparatus includes a photosensitive member, an intermediary transfer belt, a first charging device and a second charging device. Residual toner remaining on the intermediary transfer belt is to be electrically charged by the first and second charging devices and then is to be collected by being moved from the intermediary transfer belt to the photosensitive member. The first and second charging devices are successively contacted to the intermediary transfer belt at a determined timing, beginning with the first charging device disposed on an upstream side, thus electrically charging the residual toner. Thereafter, the first and second charging devices are successively spaced from the intermediary transfer belt at a determined timing, beginning with the first charging device.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junichi Ochi
  • Publication number: 20110176824
    Abstract: An image forming apparatus includes a photosensitive, an intermediary transfer belt, a first charging device and a second charging device. Residual toner remaining on the intermediary transfer belt is to be electrically charged by the first and second charging devices and then is to be collected by being move from the intermediary transfer belt to the photosensitive. The first and second charging devices are successively contacted to the intermediary transfer belt from the first charging device disposed on an upstream side with timing when the first and second charging devices oppose the intermediary transfer belt, thus electrically charging the residual toner. Thereafter, the first and second charging devices are successively spaced from the intermediary transfer belt from the first charging device.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 21, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Junichi Ochi
  • Patent number: 7738823
    Abstract: An image forming apparatus includes a substantially horizontally arranged image bearing member; a developing unit, including a plurality of developing devices and supporting the developing devices rotatably relative to the image bearing member; a movable intermediate transfer belt supported by first and second rotation members and facing the developing unit; a primary transfer member forming, together with the image bearing member, a primary transfer portion located near the first rotation member in a moving direction of the intermediate transfer belt, through the intermediate transfer belt; and a secondary transfer member forming, together with the second rotation member, a secondary transfer portion through the intermediate transfer belt. A toner image formed on the image bearing member by the developing unit is transferred on the intermediate transfer belt at the primary transfer portion, and is transferred on a recording material at the secondary transfer portion.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: June 15, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masao Umezawa, Eiichiro Kimizuka, Ichiro Yasumaru, Masao Amano, Junichi Ochi
  • Publication number: 20080317520
    Abstract: An image forming apparatus includes a substantially horizontally arranged image bearing member; a developing unit, including a plurality of developing devices and supporting the developing devices rotatably relative to the image bearing member; a movable intermediate transfer belt supported by first and second rotation members and facing the developing unit; a primary transfer member forming, together with the image bearing member, a primary transfer portion located near the first rotation member in a moving direction of the intermediate transfer belt, through the intermediate transfer belt; and a secondary transfer member forming, together with the second rotation member, a secondary transfer portion through the intermediate transfer belt. A toner image formed on the image bearing member by the developing unit is transferred on the intermediate transfer belt at the primary transfer portion, and is transferred on a recording material at the secondary transfer portion.
    Type: Application
    Filed: April 24, 2008
    Publication date: December 25, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masao Umezawa, Eiichiro Kimizuka, Ichiro Yasumaru, Masao Amano, Junichi Ochi
  • Patent number: 7386255
    Abstract: A transfer unit is movable between a first position adjacent to an image forming device and a second position for exposing the image forming device, when a door panel is opened. The transfer unit moves to the second position together with the door panel, and when the door panel is in a generally fully opened state, the transfer unit is movable to the first position independently of the door panel, thereby improving the ease of maintenance in the vicinity of the transfer unit.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: June 10, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junichi Ochi
  • Publication number: 20070036585
    Abstract: A transfer unit is movable between a first position adjacent to an image forming device and a second position for exposing the image forming device, in which when an door panel is opened. The transfer unit moves to the second position together with the door panel, and when the door panel is in a generally fully opened state, the transfer unit is movable to the first position independently of the door panel, thereby improving the ease of maintenance in the vicinity of the transfer unit.
    Type: Application
    Filed: July 27, 2006
    Publication date: February 15, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Junichi Ochi