Patents by Inventor Yoshiro Tsukada

Yoshiro Tsukada 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).

  • Publication number: 20240085834
    Abstract: An image forming system includes an image forming apparatus including an image forming unit and a fixing unit; a folding processing portion; a pressure-bonding portion; and an input portion capable of selecting a pressure-bonding mode in which a pressure-bonding print prepared by subjecting the recording material to pressure-bonding processing by the folding processing portion and the pressure-bonding portion and capable of selecting a layout of the toner image formed on the recording material. When the pressure-bonding mode is selected, the layout depending on the pressure-bonding mode is selected.
    Type: Application
    Filed: August 31, 2023
    Publication date: March 14, 2024
    Inventors: SHUICHI TAMURA, NAOYUKI YAMAMOTO, TOHRU NAKAEGAWA, KENICHIRO KITAJIMA, KOTA MORI, YOSHIRO TSUKADA
  • Publication number: 20240085843
    Abstract: An image forming system includes an image forming apparatus including a fixing unit, a folding processing portion, and a pressure-bonding portion. A first recording material having a first basis weight is fixed at a first temperature by the fixing unit and then is pressure-bonded by the pressure-bonding portion after a lapse of a first period. A second recording material having a second basis weight is fixed at a second temperature by the fixing unit and then is pressure-bonded by the pressure-bonding portion after a lapse of a second period. The second basis weight is larger than the first basis weight. The second temperature is higher than the first temperature. The second period is longer than the first period.
    Type: Application
    Filed: August 4, 2023
    Publication date: March 14, 2024
    Inventors: NAOYUKI YAMAMOTO, KENICHIRO KITAJIMA, YOSHIRO TSUKADA, TOHRU NAKAEGAWA, KOTA MORI, SHUICHI TAMURA
  • Patent number: 11921450
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a varnish coater, and a controller. When a first image forming job in which a toner image is formed to a first recording material and varnish is not applied is executed, the controller controls conveyance of the first recording material at a fixing nip portion such that a conveyance speed of the first recording material at the fixing nip portion is a first conveyance speed. When a second image forming job in which a toner image is formed to a second recording material of which a grammage is the same as a grammage of the first recording material and varnish is applied is executed, the controller controls conveyance of the second recording material at the fixing nip portion such that the second recording material is conveyed at a second conveyance speed faster than the first conveyance speed.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: March 5, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiro Tsukada
  • Publication number: 20240045360
    Abstract: An image forming system includes an image forming apparatus, a fixing device, a varnish image forming apparatus, an image reading portion, and a controller. The controller corrects first image data depending on first detection image data on a toner image formed on a first recording material and read by the image reading portion, and then depending on the corrected first image data, a toner image is formed on a second recording material subsequent to the first recording material. The controller corrects second image data depending on second detection image data on a varnish image read by the image reading portion, and then depending on the corrected second image data, a varnish image is formed on the second recording material.
    Type: Application
    Filed: August 3, 2023
    Publication date: February 8, 2024
    Inventors: TARO HANAZATO, YOSHIRO TSUKADA, MASAMI HANO, SHINGO HIROTA, TOSHIYUKI YAMADA, DAISUKE KATAYAMA, KYOHEI KIKUCHI
  • Publication number: 20240036505
    Abstract: An image forming system includes an image forming apparatus, a varnish applying apparatus, and a controller. A toner image formed on a recording material by the image forming apparatus on the basis of inputted first image data is a first toner image, and an image formed on the recording material by the varnish applying apparatus on the basis of inputted second image data is a varnish image. In a case that the varnish image is formed in a non-image region where the first toner image is not formed, before the varnish image is formed, a second toner image is formed with monochromatic toner by the image forming apparatus on a portion of the non-image region where the varnish image is formed.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 1, 2024
    Inventors: DAISUKE KATAYAMA, YOSHIRO TSUKADA, MASAMI HANO, SHINGO HIROTA, TOSHIYUKI YAMADA, TARO HANAZATO, KYOHEI KIKUCHI
  • Publication number: 20240019805
    Abstract: An image forming system including an image forming apparatus, a varnish applying apparatus, an input unit, a first image processing unit, and a second image processing unit. The image forming apparatus forms a toner image on a recording material on the basis of image data obtained by subjecting first image data to data change processing. The varnish applying apparatus forms a varnish image on the recording material on the basis of image data obtained by subjecting second image data to the data change processing.
    Type: Application
    Filed: July 12, 2023
    Publication date: January 18, 2024
    Inventors: TOSHIYUKI YAMADA, YOSHIRO TSUKADA, MASAMI HANO, SHINGO HIROTA, TARO HANAZATO, DAISUKE KATAYAMA, KYOHEI KIKUCHI
  • Publication number: 20240012349
    Abstract: An image forming system includes an image forming unit, a varnish applying unit, a conveying unit, an irradiation unit, and a controller. The controller controls conveyance of a recording material so that a conveying speed of the recording material in a case that varnish is applied to the recording material with a toner image is formed is slower than a conveying speed of the recording material in a case that varnish is applied to the recording material with no toner image. The controller controls irradiation of the varnish with light so that intensity of the light with which the varnish is irradiated in a case that the varnish is applied to the recording material with the toner image is lower than intensity of the light with which the varnish is irradiated in a case that the varnish is applied to the recording material with no toner image.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 11, 2024
    Inventors: SHINGO HIROTA, YOSHIRO TSUKADA, MASAMI HANO, TOSHIYUKI YAMADA, KYOHEI KIKUCHI, DAISUKE KATAYAMA, TARO HANAZATO
  • Publication number: 20240012354
    Abstract: An image forming system includes an image forming unit including a first photosensitive member, a first developing unit, a second photosensitive member, a second developing unit, a third photosensitive member, a third developing unit, a fourth photosensitive member, and a fourth developing unit, a varnish applying unit; an irradiation unit; and a controller configured to control image formation by the image forming unit to form a black image, on which the varnish is superimposed, with the yellow toner, the magenta toner, and the cyan toner.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 11, 2024
    Inventors: KYOHEI KIKUCHI, MASAMI HANO, YOSHIRO TSUKADA, TOSHIYUKI YAMADA, SHINGO HIROTA, TARO HANAZATO, DAISUKE KATAYAMA
  • Patent number: 11815850
    Abstract: An image forming system includes an image forming apparatus, a varnish application apparatus, and a controller. When the image forming apparatus is in a standby state and preheating of varnish in a tank by a heater is completed, if an image forming job of forming a toner image on a first recording material and applying varnish thereto by a varnish coater is received, the controller controls a guide member to guide the first recording material to a first conveyance path. When the image forming apparatus is in a standby state and preheating of varnish in the tank by the heater is not completed, if an image forming job of forming a toner image on a second recording material and not applying varnish thereto by the varnish coater is received, the controller controls the guide member to guide the second recording material to a second conveyance path.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: November 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Arimura, Naoyuki Yamamoto, Kenichiro Kitajima, Shuichi Tamura, Ryota Fujioka, Yoshiro Tsukada, Shohei Okumura, Takahiro Suzuki
  • Patent number: 11772408
    Abstract: An image forming system includes an image forming apparatus, a pressure sealing processing apparatus, and a control unit. The control unit is configured to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is smaller than a predetermined grammage, and is configured not to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is equal to or more than the predetermined grammage.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: October 3, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiro Tsukada, Shohei Okumura, Kota Mori, Kenichiro Kitajima, Tohru Nakaegawa
  • Patent number: 11662671
    Abstract: An image forming apparatus includes a controller, a drive unit, a developer bearing member, a regulation blade, and a sheet member. During non-image forming, the controller executes a control mode for controlling the drive unit to rotatably drive the developer bearing member in a second direction opposite to a first direction, and then rotatably drive the developer bearing member in the first direction. A portion above a horizontal line passing through a tip of the regulation blade out of the sheet member is disposed in a moving path of a developer born by the developer bearing member when the drive unit rotatably drives the developer bearing member in the second direction in the control mode, and is not disposed in the moving path of the developer born by the developer bearing member when the drive unit rotatably drives the developer bearing member in the first direction during image forming.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: May 30, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiro Tsukada, Koji Shigehiro, Shunsuke Tsuda
  • Publication number: 20230125938
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a varnish coater, and a controller. When a first image forming job in which a toner image is formed to a first recording material and varnish is not applied is executed, the controller controls conveyance of the first recording material at a fixing nip portion such that a conveyance speed of the first recording material at the fixing nip portion is a first conveyance speed.
    Type: Application
    Filed: October 19, 2022
    Publication date: April 27, 2023
    Inventor: Yoshiro Tsukada
  • Publication number: 20230127053
    Abstract: An image forming system includes an image forming apparatus, a varnish application apparatus, and a controller. The varnish application apparatus includes a varnish application unit configured to apply varnish to a recording material, a first conveyance unit configured to convey a recording material in a first conveyance path that passes through the varnish application unit, and a second conveyance unit configured to convey a recording material in a second conveyance path that does not pass through the varnish application unit. When failure is occurred to one or both of the varnish application unit and the first conveyance unit and failure is not occurred to the second conveyance unit, the controller is configured to permit execution of the second image forming job and to convey a recording material by the second conveyance unit in the varnish application apparatus.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 27, 2023
    Inventors: Koji Arimura, Naoyuki Yamamoto, Kenichiro Kitajima, Shuichi Tamura, Ryota Fujioka, Yoshiro Tsukada, Shohei Okumura, Takahiro Suzuki
  • Publication number: 20230129927
    Abstract: An image forming system includes an image forming apparatus, a varnish application apparatus, and a controller. When the image forming apparatus is in a standby state and preheating of varnish in a tank by a heater is completed, if an image forming job of forming a toner image on a first recording material and applying varnish thereto by a varnish coater is received, the controller controls a guide member to guide the first recording material to a first conveyance path. When the image forming apparatus is in a standby state and preheating of varnish in the tank by the heater is not completed, if an image forming job of forming a toner image on a second recording material and not applying varnish thereto by the varnish coater is received, the controller controls the guide member to guide the second recording material to a second conveyance path.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 27, 2023
    Inventors: Koji Arimura, Naoyuki Yamamoto, Kenichiro Kitajima, Shuichi Tamura, Ryota Fujioka, Yoshiro Tsukada, Shohei Okumura, Takahiro Suzuki
  • Publication number: 20230069158
    Abstract: An image forming system includes an image forming apparatus including an image forming unit and a first control unit which controls the image forming unit, a varnish application apparatus provided downstream in a sheet conveyance direction with respect to the image forming apparatus and including a varnish application unit which applies varnish to a sheet and a second control unit which controls the varnish application unit, and a sheet conveyance apparatus provided between the image forming apparatus and the varnish application apparatus in the sheet conveyance direction and including a receiving roller which receives a sheet discharged from the image forming apparatus, a processing unit which performs predetermined processing on a sheet present in the sheet conveyance apparatus, and a third control unit which controls the processing unit, wherein the first control unit is capable of communicating with the second control unit and the third control unit.
    Type: Application
    Filed: August 18, 2022
    Publication date: March 2, 2023
    Inventors: Takahiro Suzuki, Ryota Fujioka, Yoshiro Tsukada, Kenichiro Kitajima
  • Patent number: 11474465
    Abstract: In an image forming apparatus, in a case where a power of the apparatus is turned from OFF to ON, a rotation drive unit rotationally drives each of a developing roller, a first conductive roller, and a second conductive roller in a state where a liquid developer supplied to a developer container by a supply device has reached a supply position, and a bias application unit applies a bias to each of the developing roller, the first conductive roller, and the second conductive roller after the developing roller rotates at least once, in the state where the liquid developer supplied to the developer container by the supply device has reached the supply position.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: October 18, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiro Tsukada, Takehiro Kojima
  • Publication number: 20220134795
    Abstract: An image forming system includes an image forming apparatus, a pressure sealing processing apparatus, and a control unit. The control unit is configured to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is smaller than a predetermined grammage, and is configured not to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is equal to or more than the predetermined grammage.
    Type: Application
    Filed: October 12, 2021
    Publication date: May 5, 2022
    Inventors: Yoshiro Tsukada, Shohei Okumura, Kota Mori, Kenichiro Kitajima, Tohru Nakaegawa
  • Publication number: 20220100122
    Abstract: An image forming apparatus includes a controller, a drive unit, a developer bearing member, a regulation blade, and a sheet member. During non-image forming, the controller executes a control mode for controlling the drive unit to rotatably drive the developer bearing member in a second direction opposite to a first direction, and then rotatably drive the developer bearing member in the first direction. A portion above a horizontal line passing through a tip of the regulation blade out of the sheet member is disposed in a moving path of a developer born by the developer bearing member when the drive unit rotatably drives the developer bearing member in the second direction in the control mode, and is not disposed in the moving path of the developer born by the developer bearing member when the drive unit rotatably drives the developer bearing member in the first direction during image forming.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 31, 2022
    Inventors: Yoshiro Tsukada, Koji Shigehiro, Shunsuke Tsuda
  • Patent number: 11209756
    Abstract: A method for producing printed matter that has a fixed toner image and a resin layer, in the indicated sequence, on a substrate, comprising a toner image formation step of forming a fixed toner image on the substrate by fixing a toner containing a resin and a hydrocarbon wax, a mixture layer formation step of forming, on the fixed toner image, a layer of a mixture, the mixture contains at least one selected from the group consisting of diacrylates and dimethacrylates as a component (a) and a polymerization initiator as a component (b); and a resin layer formation step of polymerizing the component (a) and the component (b) in the mixture layer to form the resin layer; wherein the melting point of the hydrocarbon wax is from 55° C. to 85° C., a surface wax index A and a wax distribution unevenness index B of the area are predetermined range.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: December 28, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuya Chimoto, Yoshiro Tsukada, Naoyuki Yamamoto, Shuichi Tamura, Akifumi Matsubara, Hayato Ida
  • Publication number: 20210109470
    Abstract: In an image forming apparatus, in a case where a power of the apparatus is turned from OFF to ON, a rotation drive unit rotationally drives each of a developing roller, a first conductive roller, and a second conductive roller in a state where a liquid developer supplied to a developer container by a supply device has reached a supply position, and a bias application unit applies a bias to each of the developing roller, the first conductive roller, and the second conductive roller after the developing roller rotates at least once, in the state where the liquid developer supplied to the developer container by the supply device has reached the supply position.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Inventors: Yoshiro Tsukada, Takehiro Kojima