Patents by Inventor Naoki Wakayama

Naoki Wakayama 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: 20230249481
    Abstract: A sheet supply device that supplies a sheet from a roll, includes: a first roll support portion which rotatably supports the roll on one end side in a width direction of the roll; a second roll support portion which rotatably supports the roll on the other end side of the roll by opposing the first roll support portion; and a guide portion which extends in the width direction and movably supports the second roll support portion in the width direction; wherein below a first space in which the roll between the first roll support portion and the second roll support portion is installed, a second space into which a cart which transports the roll enters is formed.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Inventors: NAOKI WAKAYAMA, KENJI SHIMAMURA, TOMOHIRO SUZUKI, RYOSUKE MURATA, YUJIRO ISHIDA
  • Publication number: 20230173830
    Abstract: A printing apparatus includes a first discharge path that discharges a sheet and a second discharge path different from the first discharge path. An angle difference between a direction in which the sheet is discharged in the second discharge path and a conveyance direction of a conveyance roller is smaller than an angle difference between a direction in which the sheet is discharged in the first discharge path and the conveyance direction of the conveyance roller. The printing apparatus includes a control unit that discharges the sheet on which the image is printed using the second discharge path even in a case where an instruction to print an image indicates discharging the sheet to the first discharge path, if the sheet conveyed by the conveyance roller is a sheet having a thickness equal to or greater than a predetermined value.
    Type: Application
    Filed: February 1, 2023
    Publication date: June 8, 2023
    Inventor: NAOKI WAKAYAMA
  • Patent number: 11597219
    Abstract: A printing apparatus includes a first discharge path that discharges a sheet and a second discharge path different from the first discharge path. An angle difference between a direction in which the sheet is discharged in the second discharge path and a conveyance direction of a conveyance roller is less than an angle difference between a direction in which the sheet is discharged in the first discharge path and the conveyance direction of the conveyance roller. The printing apparatus includes a control unit that discharges the sheet on which the image is printed using the second discharge path even in a case where an instruction to print an image indicates discharging the sheet to the first discharge path, if the sheet conveyed by the conveyance roller is a sheet having a thickness equal to or greater than a predetermined value.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: March 7, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoki Wakayama
  • Patent number: 11498346
    Abstract: A printing apparatus, comprising a storage unit for storing a sheet, a printing unit for printing on the sheet conveyed by a first conveyance unit from the storage unit, a second conveyance unit, provided between the first conveyance unit and the storage unit, for conveying the sheet from the storage unit toward the first conveyance unit, a conveyance control unit for controlling driving of the first and the second convey units such that the sheet is bent between the first conveyance unit and the second conveyance unit, and a detection unit, provided between the first and the second conveyance units, for detecting bending of the sheet, wherein the conveyance control unit stops conveyance of the sheet by the first conveyance unit based on a detection result of the detection unit.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: November 15, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryutaro Takahashi, Masakazu Nagashima, Tomohiro Suzuki, Naoki Wakayama, Hideyuki Nozawa, Waichiro Saiki
  • Patent number: 11458746
    Abstract: A printing apparatus includes a feeding unit, a conveyance unit, a cutting unit, and a control unit. The conveyance unit nips the print medium conveyed from the feeding unit by a first roller and a second roller, and conveys the nipped print medium. The cutting unit cuts the print medium. The control unit: (1) performs control to make a command speed of the first roller lower than a command speed of the second roller until a printhead printing reaches near a trailing edge of a printing length after printing has started, (2) performs control to make the command speed of the first roller higher than the command speed of the second roller when the printing has reached near the trailing edge of the printing length, and (3) subsequently controls the cutting unit configured to cut the print medium.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: October 4, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Hideyuki Nozawa, Waichiro Saiki
  • Patent number: 11413890
    Abstract: A printing apparatus, having a printing unit, includes a first holding unit, a conveyance unit, a first cutting unit arranged between the printing unit and the first holding unit, a second cutting unit arranged between the printing unit and the first cutting unit, and a control unit. The first holding unit holds a sheet. The conveyance unit conveys the sheet to the printing unit. The first cutting unit cuts the sheet fed from the first holding unit. The second cutting unit cuts the sheet fed from the first holding unit. The control unit determines, in accordance with a length in a conveyance direction of a product to be printed on the sheet by the printing unit, whether to cut the sheet fed from the first holding unit by the first cutting unit or the second cutting unit.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: August 16, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideyuki Nozawa, Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Waichiro Saiki
  • Publication number: 20220097424
    Abstract: A printing apparatus includes a first discharge path that discharges a sheet and a second discharge path different from the first discharge path. An angle difference between a direction in which the sheet is discharged in the second discharge path and a conveyance direction of a conveyance roller is smaller than an angle difference between a direction in which the sheet is discharged in the first discharge path and the conveyance direction of the conveyance roller. The printing apparatus includes a control unit that discharges the sheet on which the image is printed using the second discharge path even in a case where an instruction to print an image indicates discharging the sheet to the first discharge path, if the sheet conveyed by the conveyance roller is a sheet having a thickness equal to or greater than a predetermined value.
    Type: Application
    Filed: September 15, 2021
    Publication date: March 31, 2022
    Inventor: Naoki Wakayama
  • Publication number: 20210362521
    Abstract: A printing apparatus, having a printing unit, includes a first holding unit, a conveyance unit, a first cutting unit arranged between the printing unit and the first holding unit, a second cutting unit arranged between the printing unit and the first cutting unit, and a control unit. The first holding unit holds a sheet. The conveyance unit conveys the sheet to the printing unit. The first cutting unit cuts the sheet fed from the first holding unit. The second cutting unit cuts the sheet fed from the first holding unit. The control unit determines, in accordance with a length in a conveyance direction of a product to be printed on the sheet by the printing unit, whether to cut the sheet fed from the first holding unit by the first cutting unit or the second cutting unit.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 25, 2021
    Inventors: Hideyuki Nozawa, Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Waichiro Saiki
  • Publication number: 20210354484
    Abstract: A printing apparatus includes a feeding unit, a conveyance unit, a cutting unit, and a control unit. The conveyance unit nips the print medium conveyed from the feeding unit by a first roller and a second roller, and conveys the nipped print medium. The cutting unit cuts the print medium. The control unit: (1) performs control to make a command speed of the first roller lower than a command speed of the second roller until a printhead printing reaches near a trailing edge of a printing length after printing has started, (2) performs control to make the command speed of the first roller higher than the command speed of the second roller when the printing has reached near the trailing edge of the printing length, and (3) subsequently controls the cutting unit configured to cut the print medium.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 18, 2021
    Inventors: Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Hideyuki Nozawa, Waichiro Saiki
  • Publication number: 20210309025
    Abstract: A printing apparatus, comprising a storage unit for storing a sheet, a printing unit for printing on the sheet conveyed by a first conveyance unit from the storage unit, a second conveyance unit, provided between the first conveyance unit and the storage unit, for conveying the sheet from the storage unit toward the first conveyance unit, a conveyance control unit for controlling driving of the first and the second convey units such that the sheet is bent between the first conveyance unit and the second conveyance unit, and a detection unit, provided between the first and the second conveyance units, for detecting bending of the sheet, wherein the conveyance control unit stops conveyance of the sheet by the first conveyance unit based on a detection result of the detection unit.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 7, 2021
    Inventors: Ryutaro Takahashi, Masakazu Nagashima, Tomohiro Suzuki, Naoki Wakayama, Hideyuki Nozawa, Waichiro Saiki
  • Patent number: 10549558
    Abstract: A cutter unit is attached to a carriage in a predetermined direction, the carriage moving in a cutting direction of a sheet. A first set of first fitting sections and a second set of second fitting sections are provided as groups of fitting sections provided at positions, which face each other, on the carriage and the cutter unit. The first fitting sections and the second fitting sections each of which are fitted to each other in a predetermined direction. When the cutter unit is attached to the carriage, the fitting of the first fitting sections starts before the fitting of the second fitting sections.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: February 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Masuda, Naoki Wakayama, Masakazu Nagashima, Daiki Anayama, Tetsuo Kikuchi, Takakazu Ohashi
  • Patent number: 10220642
    Abstract: A print apparatus has a supporting section for supporting a roll of a continuous sheet, a driving mechanism having a motor for rotating the roll supported by the supporting section, a detection unit configured to detect a rotation state of the roll supported by the supporting section, a conveyance roller for conveying the continuous sheet drawn out from the roll and a print unit configured to form an image on the continuous sheet conveyed by the conveyance roller. A control unit is configured to obtain information indicating a moment of inertia of the roll supported by the supporting section based on detected values of the detection unit and to adjust a driving torque of the motor based on the obtained information, intermittently during printing.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: March 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuki Igarashi, Ryoya Shinjo, Haruhiko Tanami, Ryohei Maruyama, Shin Genta, Naoki Wakayama
  • Patent number: 10150637
    Abstract: There is provided a stacking apparatus capable of stably conveying and stacking sheets without occurrence of damage or buckling of the sheets in the structure of discharging the curled sheets one by one. In regard to each of a plurality of clamp guides which project toward stacking trays from a conveyor to guide sheets S, the projecting position varies in accordance with a size and an amount of stacked sheets on the stack trays. The stacking tray comprises an inclined surface and a curved surface. An upper guide is located to face the inclined surface by a predetermined interval, and the upper guide is located not to face the curved surface or is located to face it by an interval larger than a predetermined interval.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: December 11, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Wakayama, Shuichi Masuda, Takakazu Ohashi, Ryohei Maruyama
  • Patent number: 10124609
    Abstract: In order to reliably cut a sheet even when the width of the sheet is changed while shortening cutting time, the position of an end portion of the sheet is sensed and a cutting range is set according to the sensed position of the end portion.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: November 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Kikuchi, Naoki Wakayama, Shuichi Masuda, Masakazu Nagashima, Daiki Anayama, Takakazu Ohashi
  • Publication number: 20170275124
    Abstract: There is provided a stacking apparatus capable of stably conveying and stacking sheets without occurrence of damage or buckling of the sheets in the structure of discharging the curled sheets one by one. In regard to each of a plurality of clamp guides which project toward stacking trays from conveyance means to guide sheets S, the projecting position varies in accordance with a size and an amount of stacked sheets Sa on the stack trays. The stacking tray comprises an inclined surface and a curved surface. An upper guide is located to face the inclined surface by a predetermined interval, and the upper guide is located not to face the curved surface or is located to face it by an interval larger than a predetermined interval.
    Type: Application
    Filed: June 13, 2017
    Publication date: September 28, 2017
    Inventors: Naoki Wakayama, Shuichi Masuda, Takakazu Ohashi, Ryohei Maruyama
  • Publication number: 20170087889
    Abstract: In order to reliably cut a sheet even when the width of the sheet is changed while shortening cutting time, the position of an end portion of the sheet is sensed and a cutting range is set according to the sensed position of the end portion.
    Type: Application
    Filed: September 22, 2016
    Publication date: March 30, 2017
    Inventors: Tetsuo Kikuchi, Naoki Wakayama, Shuichi Masuda, Masakazu Nagashima, Daiki Anayama, Takakazu Ohashi
  • Publication number: 20170087890
    Abstract: A cutter unit is attached to a carriage in a predetermined direction, the carriage moving in a cutting direction of a sheet. A first set of first fitting sections and a second set of second fitting sections are provided as groups of fitting sections provided at positions, which face each other, on the carriage and the cutter unit. The first fitting sections and the second fitting sections each of which are fitted to each other in a predetermined direction. When the cutter unit is attached to the carriage, the fitting of the first fitting sections starts before the fitting of the second fitting sections.
    Type: Application
    Filed: September 22, 2016
    Publication date: March 30, 2017
    Inventors: Shuichi Masuda, Naoki Wakayama, Masakazu Nagashima, Daiki Anayama, Tetsuo Kikuchi, Takakazu Ohashi
  • Patent number: 9539831
    Abstract: This invention has been made to cause a printing apparatus for conveying roll paper and performing printing to simultaneously attain a stable conveyance accuracy and prevent skewed conveyance independently of LF roller driving conditions and disturbance conditions that variously change as the roll paper state changes. For this purpose, a feed motor is used as a load generator for the roll paper. A section from a conveyance operation by the LF roller to the next conveyance operation is divided into a plurality of sub-sections. A feed mechanism is controlled by switching between a feeder load generation section and a feeder load zero section for each sub-section.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: January 10, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruhiko Tanami, Yuki Igarashi, Ryoya Shinjo, Ryohei Maruyama, Shin Genta, Naoki Wakayama
  • Patent number: 9487035
    Abstract: A printing apparatus includes a conveying unit, a printing unit, a cutting unit, and a control unit. In a case in which a marginless image is to be printed, if the margin portion is added on a trailing edge side of an image before the marginless image, the control unit performs control of printing the marginless image next to the margin portion. If the margin portion is not added on the trailing edge side of the image before the marginless image, the control unit performs control of providing a margin portion of more than the predetermined length before the marginless image.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: November 8, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Naoki Wakayama
  • Publication number: 20160214411
    Abstract: A printing apparatus comprising: a conveying unit; a printing unit; a cutting unit; and a control unit, wherein in a case in which a marginless image is to be printed, if the margin portion is added on a trailing edge side of an image before the marginless image, the control unit performs control of printing the marginless image next to the margin portion, and if the margin portion is not added on the trailing edge side of the image before the marginless image, the control unit performs control of providing a margin portion of more than the predetermined length before the marginless image.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 28, 2016
    Inventor: Naoki Wakayama