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).
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Patent number: 11945215Abstract: 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: GrantFiled: February 1, 2023Date of Patent: April 2, 2024Assignee: Canon Kabushiki KaishaInventor: Naoki Wakayama
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Publication number: 20230249481Abstract: 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: ApplicationFiled: February 6, 2023Publication date: August 10, 2023Inventors: NAOKI WAKAYAMA, KENJI SHIMAMURA, TOMOHIRO SUZUKI, RYOSUKE MURATA, YUJIRO ISHIDA
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Publication number: 20230173830Abstract: 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: ApplicationFiled: February 1, 2023Publication date: June 8, 2023Inventor: NAOKI WAKAYAMA
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Patent number: 11597219Abstract: 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: GrantFiled: September 15, 2021Date of Patent: March 7, 2023Assignee: Canon Kabushiki KaishaInventor: Naoki Wakayama
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Patent number: 11498346Abstract: 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: GrantFiled: March 24, 2021Date of Patent: November 15, 2022Assignee: Canon Kabushiki KaishaInventors: Ryutaro Takahashi, Masakazu Nagashima, Tomohiro Suzuki, Naoki Wakayama, Hideyuki Nozawa, Waichiro Saiki
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Patent number: 11458746Abstract: 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: GrantFiled: May 7, 2021Date of Patent: October 4, 2022Assignee: Canon Kabushiki KaishaInventors: Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Hideyuki Nozawa, Waichiro Saiki
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Patent number: 11413890Abstract: 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: GrantFiled: May 17, 2021Date of Patent: August 16, 2022Assignee: Canon Kabushiki KaishaInventors: Hideyuki Nozawa, Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Waichiro Saiki
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Publication number: 20220097424Abstract: 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: ApplicationFiled: September 15, 2021Publication date: March 31, 2022Inventor: Naoki Wakayama
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Publication number: 20210362521Abstract: 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: ApplicationFiled: May 17, 2021Publication date: November 25, 2021Inventors: Hideyuki Nozawa, Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Waichiro Saiki
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Publication number: 20210354484Abstract: 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: ApplicationFiled: May 7, 2021Publication date: November 18, 2021Inventors: Tomohiro Suzuki, Naoki Wakayama, Ryutaro Takahashi, Masakazu Nagashima, Hideyuki Nozawa, Waichiro Saiki
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Publication number: 20210309025Abstract: 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: ApplicationFiled: March 24, 2021Publication date: October 7, 2021Inventors: Ryutaro Takahashi, Masakazu Nagashima, Tomohiro Suzuki, Naoki Wakayama, Hideyuki Nozawa, Waichiro Saiki
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Patent number: 10549558Abstract: 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: GrantFiled: September 22, 2016Date of Patent: February 4, 2020Assignee: Canon Kabushiki KaishaInventors: Shuichi Masuda, Naoki Wakayama, Masakazu Nagashima, Daiki Anayama, Tetsuo Kikuchi, Takakazu Ohashi
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Patent number: 10220642Abstract: 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: GrantFiled: March 28, 2016Date of Patent: March 5, 2019Assignee: Canon Kabushiki KaishaInventors: Yuki Igarashi, Ryoya Shinjo, Haruhiko Tanami, Ryohei Maruyama, Shin Genta, Naoki Wakayama
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Patent number: 10150637Abstract: 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: GrantFiled: June 13, 2017Date of Patent: December 11, 2018Assignee: Canon Kabushiki KaishaInventors: Naoki Wakayama, Shuichi Masuda, Takakazu Ohashi, Ryohei Maruyama
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Patent number: 10124609Abstract: 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: GrantFiled: September 22, 2016Date of Patent: November 13, 2018Assignee: Canon Kabushiki KaishaInventors: Tetsuo Kikuchi, Naoki Wakayama, Shuichi Masuda, Masakazu Nagashima, Daiki Anayama, Takakazu Ohashi
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Publication number: 20170275124Abstract: 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: ApplicationFiled: June 13, 2017Publication date: September 28, 2017Inventors: Naoki Wakayama, Shuichi Masuda, Takakazu Ohashi, Ryohei Maruyama
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Publication number: 20170087889Abstract: 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: ApplicationFiled: September 22, 2016Publication date: March 30, 2017Inventors: Tetsuo Kikuchi, Naoki Wakayama, Shuichi Masuda, Masakazu Nagashima, Daiki Anayama, Takakazu Ohashi
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Publication number: 20170087890Abstract: 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: ApplicationFiled: September 22, 2016Publication date: March 30, 2017Inventors: Shuichi Masuda, Naoki Wakayama, Masakazu Nagashima, Daiki Anayama, Tetsuo Kikuchi, Takakazu Ohashi
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Patent number: 9539831Abstract: 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: GrantFiled: March 26, 2012Date of Patent: January 10, 2017Assignee: Canon Kabushiki KaishaInventors: Haruhiko Tanami, Yuki Igarashi, Ryoya Shinjo, Ryohei Maruyama, Shin Genta, Naoki Wakayama
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Patent number: 9487035Abstract: 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: GrantFiled: January 13, 2016Date of Patent: November 8, 2016Assignee: CANON KABUSHIKI KAISHAInventor: Naoki Wakayama