Patents by Inventor Tatsuhiro IGARASHI

Tatsuhiro IGARASHI 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: 10036980
    Abstract: A developing device includes a container that contains a developer containing a toner therein, a supply tank that is provided adjacent to the container and is supplied with the toner at a supply point within the supply tank, a transport member that is rotatably driven within the supply tank to transport the toner to the container, and an annular member, wherein the annular member has an inner diameter larger than a diameter of a rotatably-driven shaft in the transport member, the rotatably-driven shaft extends through the annular member, and the annular member is held in a partial section in a longitudinal direction of the rotatably-driven shaft.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 31, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro Igarashi, Manabu Furuki, Masahiro Uchida, Makoto Kamisaki, Teppei Yawada, Jun Sekiya, Koji Funaba
  • Patent number: 9897965
    Abstract: An image forming device includes an image carrier, a charging device that charges the surface of the image carrier, an electrostatic image forming device that forms an electrostatic image on the surface of the image carrier, a developing device that uses a developer containing toner particles and external additives adhering to the surface of the toner particle to develop the electrostatic image into a toner image, a transfer device that transfers the toner image to a recording medium, a cleaning device having a blade that cleans off residual toner from the image carrier, a suction device that suctions all or part of residual toner excepting the external additives released from the surface of the toner particles, and a fixing device that fixes the toner image to the recording medium.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 20, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Teppei Yawada, Manabu Furuki, Masahiro Uchida, Masashi Ikeda, Makoto Kamisaki, Tatsuhiro Igarashi
  • Patent number: 9891554
    Abstract: A developing device includes a container chamber that contains developer containing carrier and toner; a supply portion that is adjacent to the container chamber and to which supplying toner or supplying developer, which contains the supplying toner and supplying carrier, is supplied at a supplying position in the supply portion; a transporting member that transports the supplying toner or the supplying developer toward the container chamber in the supply portion; and a guide capable of guiding the developer to the supplying position.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 13, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro Igarashi, Manabu Furuki, Masahiro Uchida, Makoto Kamisaki, Teppei Yawada
  • Publication number: 20170357176
    Abstract: A developing device includes a container that contains a developer containing a toner therein, a supply tank that is provided adjacent to the container and is supplied with the toner at a supply point within the supply tank, a transport member that is rotatably driven within the supply tank to transport the toner to the container, and an annular member, wherein the annular member has an inner diameter larger than a diameter of a rotatably-driven shaft in the transport member, the rotatably-driven shaft extends through the annular member, and the annular member is held in a partial section in a longitudinal direction of the rotatably-driven shaft.
    Type: Application
    Filed: November 14, 2016
    Publication date: December 14, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro IGARASHI, Manabu FURUKI, Masahiro UCHIDA, Makoto KAMISAKI, Teppei YAWADA, Jun SEKIYA, Koji FUNABA
  • Patent number: 9753404
    Abstract: A powder container includes a container chamber that contains powder; a transporting member that transports the powder in the container chamber; an opening that is provided in a wall of the container chamber and through which the powder is discharged out of the container chamber as the transporting member transports the powder; and a closing member that closes a lower portion of the opening and moves vertically relative to the opening in a direction opposite to a direction of vertical movement of the opening due to tilting of the container chamber.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: September 5, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masahiro Uchida, Manabu Furuki, Masashi Ikeda, Makoto Kamisaki, Tatsuhiro Igarashi, Teppei Yawada
  • Publication number: 20170248895
    Abstract: An image forming device includes an image carrier, a charging device that charges the surface of the image carrier, an electrostatic image forming device that forms an electrostatic image on the surface of the image carrier, a developing device that uses a developer containing toner particles and external additives adhering to the surface of the toner particle to develop the electrostatic image into a toner image, a transfer device that transfers the toner image to a recording medium, a cleaning device having a blade that cleans off residual toner from the image carrier, a suction device that suctions all or part of residual toner excepting the external additives released from the surface of the toner particles, and a fixing device that fixes the toner image to the recording medium.
    Type: Application
    Filed: August 8, 2016
    Publication date: August 31, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Teppei YAWADA, Manabu FURUKI, Masahiro UCHIDA, Masashi IKEDA, Makoto KAMISAKI, Tatsuhiro IGARASHI
  • Publication number: 20170219955
    Abstract: A powder container includes a container chamber that contains powder; a transporting member that transports the powder in the container chamber; an opening that is provided in a wall of the container chamber and through which the powder is discharged out of the container chamber as the transporting member transports the powder; and a closing member that closes a lower portion of the opening and moves vertically relative to the opening in a direction opposite to a direction of vertical movement of the opening due to tilting of the container chamber.
    Type: Application
    Filed: July 29, 2016
    Publication date: August 3, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masahiro UCHIDA, Manabu FURUKI, Masashi IKEDA, Makoto KAMISAKI, Tatsuhiro IGARASHI, Teppei YAWADA
  • Publication number: 20170176888
    Abstract: A developing device includes a container chamber that contains developer containing carrier and toner; a supply portion that is adjacent to the container chamber and to which supplying toner or supplying developer, which contains the supplying toner and supplying carrier, is supplied at a supplying position in the supply portion; a transporting member that transports the supplying toner or the supplying developer toward the container chamber in the supply portion; and a guide capable of guiding the developer to the supplying position.
    Type: Application
    Filed: July 22, 2016
    Publication date: June 22, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro IGARASHI, Manabu FURUKI, Masahiro UCHIDA, Makoto KAMISAKI, Teppei YAWADA
  • Patent number: 9488952
    Abstract: A cleaning device includes a removal member that removes residual objects from a surface of a target cleaning body by contacting with the surface in a linear manner and rubbing against the surface and forms a piled body which is constructed of a portion of the residual objects at a contact location, and a pressure device that presses the piled body to increase a strength of the piled body.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: November 8, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masashi Ikeda, Yoshinari Ueno, Manabu Furuki, Masahiro Uchida, Tatsuhiro Igarashi, Mona Tasaki, Teppei Yawada
  • Patent number: 9411270
    Abstract: A cleaning device includes a removal member that forms piled bodies of residual objects at a contact location and removes residual objects from a surface of a target cleaning member by contacting with the surface in a linear manner and rubbing against the surface, and a smoothing member that smooths out the piled bodies by moving along the contact location.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: August 9, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Manabu Furuki, Masahiro Uchida, Masashi Ikeda, Tatsuhiro Igarashi, Mona Tasaki, Teppei Yawada
  • Publication number: 20160216646
    Abstract: A cleaning device includes a removal member that forms piled bodies of residual objects at a contact location and removes residual objects from a surface of a target cleaning member by contacting with the surface in a linear manner and rubbing against the surface, and a smoothing member that smooths out the piled bodies by moving along the contact location.
    Type: Application
    Filed: September 10, 2015
    Publication date: July 28, 2016
    Inventors: Manabu FURUKI, Masahiro UCHIDA, Masashi IKEDA, Tatsuhiro IGARASHI, Mona TASAKI, Teppei YAWADA
  • Publication number: 20160216661
    Abstract: An image forming apparatus, includes a forming device that forms unfixed images on recording media, a fixing unit that melts a material forming the images to fix the images onto the recording media, a stacking tray on which the recording media onto which the images are fixed are stacked, and a displacer that applies a force to the recording media stacked on the stacking tray to displace the recording media relative to each other.
    Type: Application
    Filed: September 17, 2015
    Publication date: July 28, 2016
    Inventors: Tatsuhiro IGARASHI, Yoshinari UENO, Manabu FURUKI, Masahiro UCHIDA, Masashi IKEDA, Mona TASAKI, Teppei YAWADA
  • Publication number: 20160209798
    Abstract: A cleaning device includes a removal member that removes residual objects from a surface of a target cleaning body by contacting with the surface in a linear manner and rubbing against the surface and forms a piled body which is constructed of a portion of the residual objects at a contact location, and a pressure device that presses the piled body to increase a strength of the piled body.
    Type: Application
    Filed: September 10, 2015
    Publication date: July 21, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masashi IKEDA, Yoshinari UENO, Manabu FURUKI, Masahiro UCHIDA, Tatsuhiro IGARASHI, Mona TASAKI, Teppei YAWADA
  • Patent number: 9141027
    Abstract: A cleaning device that cleans a residual toner from a cleaning target includes a cleaning blade that blocks the residual toner containing toner particles and an external additive on the cleaning target and scrapes the residual toner from the cleaning target, a measurement unit that measures an amount of the external additive in the residual toner which is blocked by the cleaning blade and remains on the cleaning target, and a control unit that increases an amount of a toner that is supplied to the cleaning target based on a measurement result obtained by the measurement unit.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: September 22, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Manabu Furuki, Masashi Ikeda, Tatsuhiro Igarashi, Teppei Yawada
  • Patent number: 9075347
    Abstract: Provided is a developing device including an accommodating unit that contains a developer, a transport member that holds the developer on an outer surface and transports the developer outside from the accommodating unit, a layer regulating member that faces the outer surface of the transport member with a gap, extends in a direction intersecting a direction in which the developer is transported, and regulates a layer thickness of the developer, and a removal member that is inserted into the gap, moves along the direction in which the layer regulating member extends, and removes the developer from the gap.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: July 7, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masahiro Uchida, Manabu Furuki, Masashi Ikeda, Tatsuhiro Igarashi, Teppei Yawada
  • Patent number: 9069295
    Abstract: Provided is a cleaning unit including a removing member that contacts with a surface of a cleaning target and removes adherent matters on the surface of the cleaning target, a storage section that stores the adherent matters removed by the removing member, and a supply member that has a blade and rotates the blade in the storage section to supply some of the adherent matters stored in the storage section to the surface of the cleaning target.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: June 30, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro Igarashi, Manabu Furuki, Masashi Ikeda, Teppei Yawada
  • Patent number: 9046819
    Abstract: Provided is a toner transport device including a transport member that transports a developer in one direction, a toner feeding member disposed adjacent to, in a direction crossing the one direction, an end portion of the transport member, and a housing that is provided with a toner receiving port which receives supply of toner in an upper section of the toner feeding member, and accommodates the transport member and the toner feeding member, wherein the toner feeding member includes a rotating shaft, and a flat plate portion that protrudes in a direction away from a shaft member with one side thereof being connected to the shaft member and a front end portion away from the shaft member having a tapered shape, the flat plate portion rotating along with rotation of the shaft member to scrape the toner that moves from the toner receiving port toward the toner feeding member.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: June 2, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Manabu Furuki, Masashi Ikeda, Tatsuhiro Igarashi
  • Publication number: 20150104231
    Abstract: Provided is a cleaning unit including a removing member that contacts with a surface of a cleaning target and removes adherent matters on the surface of the cleaning target, a storage section that stores the adherent matters removed by the removing member, and a supply member that has a blade and rotates the blade in the storage section to supply some of the adherent matters stored in the storage section to the surface of the cleaning target.
    Type: Application
    Filed: April 21, 2014
    Publication date: April 16, 2015
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro IGARASHI, Manabu FURUKI, Masashi IKEDA, Teppei YAWADA
  • Publication number: 20150098734
    Abstract: Provided is a developing device including an accommodating unit that contains a developer, a transport member that holds the developer on an outer surface and transports the developer outside from the accommodating unit, a layer regulating member that faces the outer surface of the transport member with a gap, extends in a direction intersecting a direction in which the developer is transported, and regulates a layer thickness of the developer, and a removal member that is inserted into the gap, moves along the direction in which the layer regulating member extends, and removes the developer from the gap.
    Type: Application
    Filed: April 15, 2014
    Publication date: April 9, 2015
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masahiro UCHIDA, Manabu FURUKI, Masashi IKEDA, Tatsuhiro IGARASHI, Teppei YAWADA
  • Publication number: 20140212178
    Abstract: Provided is a toner transport device including a transport member that transports a developer in one direction, a toner feeding member disposed adjacent to, in a direction crossing the one direction, an end portion of the transport member, and a housing that is provided with a toner receiving port which receives supply of toner in an upper section of the toner feeding member, and accommodates the transport member and the toner feeding member, wherein the toner feeding member includes a rotating shaft, and a flat plate portion that protrudes in a direction away from a shaft member with one side thereof being connected to the shaft member and a front end portion away from the shaft member having a tapered shape, the flat plate portion rotating along with rotation of the shaft member to scrape the toner that moves from the toner receiving port toward the toner feeding member.
    Type: Application
    Filed: August 20, 2013
    Publication date: July 31, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Manabu FURUKI, Masashi IKEDA, Tatsuhiro IGARASHI