Patents by Inventor Satoshi Tatsuura

Satoshi Tatsuura 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: 10289032
    Abstract: An oil removing device includes a first heating member that at an outer surface thereof contacts a non-image surface of a recording medium which is transported, and that heats the recording medium, a toner image that is formed by using liquid developer that contains volatile oil and toner being transferred to the recording medium; and a second heating member that is disposed on a downstream side of the first heating member in a transport direction, the second heating member contacting at an outer surface thereof the non-image surface of the recording medium and heating the recording medium. In the oil removing device, a non-contact region where the non-image surface of the recording medium does not contact the first heating member and the second heating member is provided between the first heating member and the second heating member.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 14, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masaaki Abe, Satoshi Tatsuura, Nobuhiro Katsuta, Hiroaki Moriyama
  • Patent number: 10156819
    Abstract: An image forming apparatus includes a fixing device that fixes a toner image which is developed with a liquid developer containing a toner and a volatile carrier oil on a recording medium, a heating device that is disposed on an upstream side of the fixing device in a feed direction of the recording medium, and heats the toner image on the recording medium in a non-contact manner, in which heating is controlled such that a porosity of the toner image on the recording medium in an outlet of the heating device is in a range of 20% by volume to 40% by volume, and a drying path that is disposed between the heating device and the fixing device in the feed direction of the recording medium, and dries the recording medium by evaporating the carrier oil in the recording medium.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 18, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masaaki Abe, Nobuhiro Katsuta, Yasufumi Suwabe, Satoshi Tatsuura
  • Publication number: 20180275566
    Abstract: An oil removing device includes a first heating member that at an outer surface thereof contacts a non-image surface of a recording medium which is transported, and that heats the recording medium, a toner image that is formed by using liquid developer that contains volatile oil and toner being transferred to the recording medium; and a second heating member that is disposed on a downstream side of the first heating member in a transport direction, the second heating member contacting at an outer surface thereof the non-image surface of the recording medium and heating the recording medium. In the oil removing device, a non-contact region where the non-image surface of the recording medium does not contact the first heating member and the second heating member is provided between the first heating member and the second heating member.
    Type: Application
    Filed: September 25, 2017
    Publication date: September 27, 2018
    Applicant: FUJI XEROX Co., Ltd.
    Inventors: Masaaki ABE, Satoshi TATSUURA, Nobuhiro KATSUTA, Hiroaki MORIYAMA
  • Publication number: 20180095387
    Abstract: An image forming apparatus includes a fixing device that fixes a toner image which is developed with a liquid developer containing a toner and a volatile carrier oil on a recording medium, a heating device that is disposed on an upstream side of the fixing device in a feed direction of the recording medium, and heats the toner image on the recording medium in a non-contact manner, in which heating is controlled such that a porosity of the toner image on the recording medium in an outlet of the heating device is in a range of 20% by volume to 40% by volume, and a drying path that is disposed between the heating device and the fixing device in the feed direction of the recording medium, and dries the recording medium by evaporating the carrier oil in the recording medium.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 5, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masaaki ABE, Nobuhiro KATSUTA, Yasufumi SUWABE, Satoshi TATSUURA
  • Patent number: 9841695
    Abstract: An image forming apparatus includes an image holding member, a first charging unit that charges a surface of the image holding member, a latent image forming unit that forms an electrostatic latent image on a charged surface of the image holding member, a second charging unit that charges a toner contained in a liquid developer, a developing unit that accommodates the liquid developer and develops the electrostatic latent image by using the liquid developer containing the toner charged by the second charging unit to form a toner image, a transfer unit that transfers the toner image to a recording medium, and a fixing unit that fixes the toner image to the recording medium. The liquid developer includes a toner in which a compound having a charge-accepting functional group has been bonded to a surface of toner particles, an ionization-controlling agent that ionizes the charge-accepting functional group, and a carrier liquid.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: December 12, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoshi Tatsuura, Keitaro Mori, Kazunari Komatsuzaki, Yutaka Nogami
  • Patent number: 9696670
    Abstract: A fixing device includes a fixing unit that fixes a developer on a recording medium, a first heating unit, and at least one second heating unit. The first heating unit is disposed at an upstream side of the fixing unit in a transport direction of the recording medium, and heats the recording medium so that a temperature of the recording medium is set at a first temperature that is equal to or lower than a temperature of the fixing member and is equal to or higher than a thermal deformation temperature at which the recording medium is deformed. The at least one second heating unit comes into contact with the recording medium at a downstream side with respect to the first heating unit and at an upstream side with respect to the fixing unit, and heats the recording medium at a second temperature that is lower than the first temperature.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 4, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masaaki Abe, Nobuhiro Katsuta, Yasufumi Suwabe, Satoshi Tatsuura
  • Publication number: 20170060055
    Abstract: A fixing device includes a fixing unit that fixes a developer on a recording medium, a first heating unit, and at least one second heating unit. The first heating unit is disposed at an upstream side of the fixing unit in a transport direction of the recording medium, and heats the recording medium so that a temperature of the recording medium is set at a first temperature that is equal to or lower than a temperature of the fixing member and is equal to or higher than a thermal deformation temperature at which the recording medium is deformed. The at least one second heating unit comes into contact with the recording medium at a downstream side with respect to the first heating unit and at an upstream side with respect to the fixing unit, and heats the recording medium at a second temperature that is lower than the first temperature.
    Type: Application
    Filed: June 29, 2016
    Publication date: March 2, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masaaki ABE, Nobuhiro KATSUTA, Yasufumi SUWABE, Satoshi TATSUURA
  • Publication number: 20170038699
    Abstract: A liquid developer includes a toner in which a compound having a charge-accepting functional group has been bonded to a surface of toner particles, and a carrier liquid which makes a charge density of a surface of the toner become 1 ?C/m2 or less when the toner is dispersed in the carrier liquid.
    Type: Application
    Filed: August 30, 2016
    Publication date: February 9, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satoshi TATSUURA, Keitaro MORI, Kazunari KOMATSUZAKI, Yutaka NOGAMI
  • Patent number: 9529314
    Abstract: Provided is an image forming apparatus including an image forming section that forms a toner image according to image data on a transported recording medium, a reforming section that generates a polar group on a first surface of the recording medium on which the toner image is formed, and a control section that sets target regions on the first surface of the recording medium in order in a transport direction and controls a strength of reforming processing to be a reference strength which is set for the recording medium with respect to the target region of a non-image section.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: December 27, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Wataru Suzuki, Satoshi Tatsuura, Mamoru Fujita
  • Patent number: 9488949
    Abstract: An image forming apparatus, includes an image forming section that forms an image layer on a recording medium by supplying and fixing a toner based on image information, a winding section that winds the recording medium on which the image layer is formed by the image forming section, an extraction section that extracts step portion which is formed at end portion of the image layer based on the image information, and an adjustment layer forming section that forms an adjustment layer which suppresses the step portion that is extracted by the extraction section on the recording medium.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: November 8, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Mamoru Fujita, Satoshi Tatsuura, Wataru Suzuki
  • Patent number: 9459549
    Abstract: A liquid developer includes a toner in which a compound having a charge-accepting functional group has been bonded to a surface of toner particles, and a carrier liquid which makes a charge density of a surface of the toner become 1 ?C/m2 or less when the toner is dispersed in the carrier liquid.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 4, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoshi Tatsuura, Keitaro Mori, Kazunari Komatsuzaki, Yutaka Nogami
  • Patent number: 9436133
    Abstract: An image forming apparatus includes an electrostatic latent image holding member, a charging device, a latent image forming device, a developing device that stores a liquid developer containing a toner and a non-volatile carrier liquid, and develops the electrostatic latent image formed on the surface of the electrostatic latent image holding member by the liquid developer to form a toner image, a transfer device that transfers the toner image onto a surface of an impermeable recording medium, and a fixing device, wherein when the SP value of the toner is set as SP(t), the SP value of the non-volatile carrier liquid is set as SP(c), and the SP value of the recording medium is set as SP(m), an absolute value of a difference between SP(t) and SP(c) is from 1.5 to 7.0 and the following relational expression (A) is satisfied: |SP(c)?SP(m)|>|SP(t)?SP(m)|.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: September 6, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoshi Tatsuura, Yutaka Nogami, Keitaro Mori, Yoshihiro Inaba, Takako Kobayashi, Daisuke Yoshino
  • Publication number: 20160246206
    Abstract: Provided is an image forming apparatus including an image forming section that forms a toner image according to image data on a transported recording medium, a reforming section that generates a polar group on a first surface of the recording medium on which the toner image is formed, and a control section that sets target regions on the first surface of the recording medium in order in a transport direction and controls a strength of reforming processing to be a reference strength which is set for the recording medium with respect to the target region of a non-image section.
    Type: Application
    Filed: August 24, 2015
    Publication date: August 25, 2016
    Inventors: Wataru SUZUKI, Satoshi TATSUURA, Mamoru FUJITA
  • Publication number: 20160238971
    Abstract: An image forming apparatus, includes an image forming section that forms an image layer on a recording medium by supplying and fixing a toner based on image information, a winding section that winds the recording medium on which the image layer is formed by the image forming section, an extraction section that extracts step portion which is formed at end portion of the image layer based on the image information, and an adjustment layer forming section that forms an adjustment layer which suppresses the step portion that is extracted by the extraction section on the recording medium.
    Type: Application
    Filed: September 10, 2015
    Publication date: August 18, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Mamoru FUJITA, Satoshi TATSUURA, Wataru SUZUKI
  • Patent number: 9304451
    Abstract: Provided is a heating transport device, including a heating transport roll around which a recording medium to which a toner image is transferred is wound, and that transports the recording medium while heating the toner image to a temperature higher than or equal to a melting temperature of toner, and a cooling roll that forms a nip with the heating transport roll, transports the recording medium, and cools the recording medium such that the temperature of the recording medium is lower than or equal to a heat deformation temperature of the recording medium at a position at which the recording medium separates from the heating transport roll.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 5, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasufumi Suwabe, Nobuhiro Katsuta, Masaaki Abe, Satoshi Tatsuura
  • Patent number: 9201375
    Abstract: Provided is an image forming apparatus including a first image forming unit that forms a first image on a front surface of a transported medium with a developer including toners and non-volatile oils, a removing unit that heats non-volatile oils on the front surface of the medium to remove the oils, a second image forming unit that forms a second image on a back surface of the medium with a developer including toners and non-volatile oils, a removing section that heats non-volatile oils on the back surface of the medium to remove the oils, and a fixing unit that fixes the first image and the second image on the front surface and the back surface of the medium.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: December 1, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kazunari Komatsuzaki, Nobuhiro Katsuta, Yasushi Kawahata, Satoshi Tatsuura, Yutaka Nogami, Keitaro Mori
  • Patent number: 9176413
    Abstract: There is provided a liquid developer containing a toner that has a ratio G?(65)/G?(90) of a storage modulus G?(65) at 65° C. to a storage modulus G?(90) at 90° C. of from 1×10 to 1×103, and a carrier liquid that has a difference ?SP(tc) of SP value between the carrier liquid and the toner of from 1.5 to 7.0, and an image forming apparatus containing an electrostatic latent image holding member, a charging device, a latent image forming device, a developing device, a transfer device and a fixing device.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: November 3, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoshi Tatsuura, Keitaro Mori, Nobuhiro Katsuta
  • Patent number: 9158244
    Abstract: An image forming apparatus includes an image forming unit that forms a toner image on a transported medium using a developer containing toner and non-volatile oil, a heating unit that is arranged on a downstream of the image forming unit in a transport direction of the medium and heats the toner image on the medium to a melting temperature of the toner or higher, and a fixing unit that is arranged on a downstream of the heating unit in the transport direction, wherein the fixing unit includes a heat supply section that supplies heat to the developer on the medium, a removal section that removes the non-volatile oil from the developer to which heat is supplied by the heat supply section, and a fixing section that fixes the toner image, which is formed of the developer from which the non-volatile oil is removed by the removal section, on the medium.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: October 13, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Satoshi Tatsuura
  • Publication number: 20150268613
    Abstract: Provided is an image forming apparatus including a first image forming unit that forms a first image on a front surface of a transported medium with a developer including toners and non-volatile oils, a removing unit that heats non-volatile oils on the front surface of the medium to remove the oils, a second image forming unit that forms a second image on a back surface of the medium with a developer including toners and non-volatile oils, a removing section that heats non-volatile oils on the back surface of the medium to remove the oils, and a fixing unit that fixes the first image and the second image on the front surface and the back surface of the medium.
    Type: Application
    Filed: February 24, 2015
    Publication date: September 24, 2015
    Inventors: Kazunari KOMATSUZAKI, Nobuhiro KATSUTA, Yasushi KAWAHATA, Satoshi TATSUURA, Yutaka NOGAMI, Keitaro MORI
  • Publication number: 20150268599
    Abstract: An image forming apparatus includes an image forming unit that forms a toner image on a transported medium using a developer containing toner and non-volatile oil, a heating unit that is arranged on a downstream of the image forming unit in a transport direction of the medium and heats the toner image on the medium to a melting temperature of the toner or higher, and a fixing unit that is arranged on a downstream of the heating unit in the transport direction, wherein the fixing unit includes a heat supply section that supplies heat to the developer on the medium, a removal section that removes the non-volatile oil from the developer to which heat is supplied by the heat supply section, and a fixing section that fixes the toner image, which is formed of the developer from which the non-volatile oil is removed by the removal section, on the medium.
    Type: Application
    Filed: August 12, 2014
    Publication date: September 24, 2015
    Inventor: Satoshi TATSUURA