Patents by Inventor Yusuke Tozuka
Yusuke Tozuka 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: 11745494Abstract: Disclosed is a corrugated paperboard printer comprising a chamber which reserves ink, wherein the chamber comprises a chamber frame comprising an ink reservoir which reserves the ink. A steel member and a recovery pipe are arranged on the opposite side of an anilox roll across the chamber frame. The steel member comprises a web extending in an up-down direction, and a first flange and a second flange connected, respectively, to up-down directional opposite ends of the web. The web is penetratingly formed with a maintenance opening in accordance with the position of a coupling port valve or the like. The second flange is formed with an insertion part for allowing the recovery pipe or the like to be inserted therein.Type: GrantFiled: May 2, 2022Date of Patent: September 5, 2023Assignee: KABUSHIKI KAISHA ISOWAInventor: Yusuke Tozuka
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Patent number: 11745495Abstract: Disclosed is a corrugated paperboard printer comprising a pressing device for applying a pressing force to press a chamber which reserves ink toward an anilox roll. The pressing device is configured to apply a first pressing force, and a second pressing force which is greater than the first pressing force, respectively, to a first pressing area and a second pressing area in a back surface of a chamber frame. In a state in which no pressing force is applied by the pressing device, bending occurring in the chamber frame due to a load transmitted from a printing roll to the chamber frame via the anilox roll as printing is performed to a corrugated paperboard sheet is greater in the second pressing area than in the first pressing area.Type: GrantFiled: May 2, 2022Date of Patent: September 5, 2023Assignee: KABUSHIKI KAISHA ISOWAInventor: Yusuke Tozuka
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Publication number: 20220363050Abstract: Disclosed is a corrugated paperboard printer comprising a chamber which reserves ink, wherein the chamber comprises a chamber frame comprising an ink reservoir which reserves the ink. A steel member and a recovery pipe are arranged on the opposite side of an anilox roll across the chamber frame. The steel member comprises a web extending in an up-down direction, and a first flange and a second flange connected, respectively, to up-down directional opposite ends of the web. The web is penetratingly formed with a maintenance opening in accordance with the position of a coupling port valve or the like.Type: ApplicationFiled: May 2, 2022Publication date: November 17, 2022Inventor: Yusuke TOZUKA
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Publication number: 20220363051Abstract: Disclosed is a corrugated paperboard printer comprising a pressing device for applying a pressing force to press a chamber which reserves ink toward an anilox roll. The pressing device is configured to apply a first pressing force, and a second pressing force which is greater than the first pressing force, respectively, to a first pressing area and a second pressing area in a back surface of a chamber frame. In a state in which no pressing force is applied by the pressing device, bending occurring in the chamber frame due to a load transmitted from a printing roll to the chamber frame via the anilox roll as printing is performed to a corrugated paperboard sheet is greater in the second pressing area than in the first pressing area.Type: ApplicationFiled: May 2, 2022Publication date: November 17, 2022Inventor: Yusuke TOZUKA
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Patent number: 11413858Abstract: An ink recovery pipe comprises: an inflow port for receiving ink from an ink reservoir, and disposed at a position close to a first machine frame; and an outflow port for discharging ink into an ink container, and disposed at a position close to a second machine frame. A first restriction device is disposed at a position downstream of the inflow por. A first coupling part is configured to couple a high-pressure air generation part with the ink recovery pipe at a position downstream of the first restriction device. A first high-pressure air control device is configured to stop supply of high-pressure air to the ink recovery pipe, while ink is supplied to the ink reservoir, and supply the high-pressure air to the ink recovery pipe, after start of an ink recovery operation of recovering ink from the ink reservoir after completion of supply of ink.Type: GrantFiled: March 10, 2021Date of Patent: August 16, 2022Assignee: KABUSHIKI KAISHA ISOWAInventor: Yusuke Tozuka
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Publication number: 20210316547Abstract: An ink recovery pipe comprises: an inflow port for receiving ink from an ink reservoir, and disposed at a position close to a first machine frame; and an outflow port for discharging ink into an ink container, and disposed at a position close to a second machine frame. A first restriction device is disposed at a position downstream of the inflow por. A first coupling part is configured to couple a high-pressure air generation part with the ink recovery pipe at a position downstream of the first restriction device. A first high-pressure air control device is configured to stop supply of high-pressure air to the ink recovery pipe, while ink is supplied to the ink reservoir, and supply the high-pressure air to the ink recovery pipe, after start of an ink recovery operation of recovering ink from the ink reservoir after completion of supply of ink.Type: ApplicationFiled: March 10, 2021Publication date: October 14, 2021Inventor: Yusuke TOZUKA
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Patent number: 9944039Abstract: A corrugated paperboard sheet manufacturing apparatus (1) comprises a single facer (8) for preparing a single-faced corrugated paperboard sheet (6), a double facer (12) for preparing a double-faced corrugated paperboard sheet (12), a slitter-scorer (17) for performing a scoring and a slitting of the double-faced corrugated paperboard sheet (10), a cutter (20) for cutting the double-faced corrugated paperboard sheet (10) after the scoring and slitting, and a printer (18) for printing individual identification information on the double-faced corrugated paperboard sheet, in a non-contact state. The printer (18) is disposed on a conveyance line of the corrugated paperboard sheet manufacturing apparatus (1) at a position on a downstream side of the double facer (12).Type: GrantFiled: March 30, 2016Date of Patent: April 17, 2018Assignee: KABUSHIKI KAISHA ISOWAInventors: Michio Suzuki, Yusuke Tozuka, Satoru Tsuchiya, Masufumi Sonoda
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Publication number: 20160361886Abstract: A corrugated paperboard sheet manufacturing apparatus (1) comprises a single facer (8) for preparing a single-faced corrugated paperboard sheet (6), a double facer (12) for preparing a double-faced corrugated paperboard sheet (12), a slitter-scorer (17) for performing a scoring and a slitting of the double-faced corrugated paperboard sheet (10), a cutter (20) for cutting the double-faced corrugated paperboard sheet (10) after the scoring and slitting, and a printer (18) for printing individual identification information on the double-faced corrugated paperboard sheet, in a non-contact state. The printer (18) is disposed on a conveyance line of the corrugated paperboard sheet manufacturing apparatus (1) at a position on a downstream side of the double facer (12).Type: ApplicationFiled: March 30, 2016Publication date: December 15, 2016Inventors: Michio SUZUKI, Yusuke TOZUKA, Satoru TSUCHIYA, Masufumi SONODA
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Patent number: 9327934Abstract: Disclosed is a sheet stacking apparatus which includes: a leading-edge regulating member configured to be positionally adjustable depending on a length of a plurality of corrugated paperboard sheets; a sheet stopper installed in the leading-edge regulating member in such a manner as to be movable with respect to a contact surface of the leading-edge regulating member reciprocatingly between a first position and a second position, and contactable with a leading edge of the corrugated paperboard sheet to be stacked in the hopper section; a detection section disposed upstream of the hopper section, and configured to detect a passing of each of the corrugated paperboard sheets; and a synchronization control device configured to reciprocatingly move the sheet stopper according to a detection signal, in such a manner as to allow the leading edge of the corrugated paperboard sheet to come into contact with the sheet stopper.Type: GrantFiled: June 12, 2015Date of Patent: May 3, 2016Assignee: KABUSHIKI KAISHA ISOWAInventors: Takayuki Nomura, Yusuke Tozuka
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Publication number: 20150368064Abstract: Disclosed is a sheet stacking apparatus which includes: a leading-edge regulating member configured to be positionally adjustable depending on a length of a plurality of corrugated paperboard sheets; a sheet stopper installed in the leading-edge regulating member in such a manner as to be movable with respect to a contact surface of the leading-edge regulating member reciprocatingly between a first position and a second position, and contactable with a leading edge of the corrugated paperboard sheet to be stacked in the hopper section; a detection section disposed upstream of the hopper section, and configured to detect a passing of each of the corrugated paperboard sheets; and a synchronization control device configured to reciprocatingly move the sheet stopper according to a detection signal, in such a manner as to allow the leading edge of the corrugated paperboard sheet to come into contact with the sheet stopper.Type: ApplicationFiled: June 12, 2015Publication date: December 24, 2015Inventors: Takayuki NOMURA, Yusuke TOZUKA
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Patent number: 9033599Abstract: Provided is a corrugated paperboard sheet printing device which includes a conveyance device for conveying a corrugated paperboard sheet fed out from a sheet feeding device, while suckingly holding the sheet; a plurality of printing units for printing the sheet through a series of printing processes; an information generator for generating basis weight information indicative of a basis weight of a corrugated paperboard sheet in each order; a storage device for storing therein a plurality of correction information for correcting a plurality of printing timings at each of which a respective one of the plurality of printing units performs the printing process on the sheet, in association with the basis weight information; and a controller for, based on the correction information, correcting the printing timing in each of the printing units, and causing the printing unit to operate according to the corrected printing timing.Type: GrantFiled: July 26, 2013Date of Patent: May 19, 2015Assignee: Kabushiki Kaisha IsowaInventors: Junichi Kodama, Tsutomu Okamoto, Yusuke Tozuka
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Patent number: 9033646Abstract: The present invention is a cardboard sheet batch division device for dividing batches, disposed on the downstream side of a batch-forming device for separating loaded cardboard sheets and forming batches of a predetermined sheet count. The cardboard sheet batch division device for dividing batches comprises: a transfer conveyor for transferring batches formed by the batch-forming device in a predetermined transfer direction; and batch division means furnished with two separating members respectively contacting the leading edge portion and the trailing edge portion of a batch on the transfer conveyor, for dividing the batch into two sub-batches, upper and lower, by moving the two separating members relative to one another in a direction parallel to the predetermined transfer direction.Type: GrantFiled: March 29, 2011Date of Patent: May 19, 2015Assignee: Kabushiki Kaisha IsowaInventors: Hidenori Kokubo, Yusuke Tozuka, Jiro Minami
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Patent number: 8657555Abstract: A counter ejector of cardboard sheet box-making machine is disclosed. A front contact plate contacting cardboard sheets is movable in a feed direction. A spanker is disposed to face the front contact plate in the feed direction, and contacts the back edge portion of the cardboard sheet, aligning the sheet edge portions. Ledges separate cardboard sheets loaded between front contact plate and the spanker, forming a batch of a predetermined number of sheets. A transfer conveyor transfers batches in a transfer direction, which is the same direction as the feed direction. An elevator is furnished with a table, and carries batches from the height at which the front contact plate and the spanker are disposed to the height at which the transfer conveyor is disposed. The table is moved by the same amount and in the same movement direction as the movement of the front contact plate.Type: GrantFiled: March 29, 2011Date of Patent: February 25, 2014Assignee: Kabushiki Kaisha IsowaInventors: Hidenori Kokubo, Yusuke Tozuka
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Publication number: 20140037353Abstract: Provided is a corrugated paperboard sheet printing device which includes a conveyance device for conveying a corrugated paperboard sheet fed out from a sheet feeding device, while suckingly holding the sheet; a plurality of printing units for printing the sheet through a series of printing processes; an information generator for generating basis weight information indicative of a basis weight of a corrugated paperboard sheet in each order; a storage device for storing therein a plurality of correction information for correcting a plurality of printing timings at each of which a respective one of the plurality of printing units performs the printing process on the sheet, in association with the basis weight information; and a controller for, based on the correction information, correcting the printing timing in each of the printing units, and causing the printing unit to operate according to the corrected printing timing.Type: ApplicationFiled: July 26, 2013Publication date: February 6, 2014Applicant: Kabushiki Kaisha IsowaInventors: Junichi Kodama, Tsutomu Okamoto, Yusuke Tozuka
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Publication number: 20110268550Abstract: The present invention is a cardboard sheet batch division device for dividing batches, disposed on the downstream side of a batch-forming device for separating loaded cardboard sheets and forming batches of a predetermined sheet count. The cardboard sheet batch division device for dividing batches comprises: a transfer conveyor for transferring batches formed by the batch-forming device in a predetermined transfer direction; and batch division means furnished with two separating members respectively contacting the leading edge portion and the trailing edge portion of a batch on the transfer conveyor, for dividing the batch into two sub-batches, upper and lower, by moving the two separating members relative to one another in a direction parallel to the predetermined transfer direction.Type: ApplicationFiled: March 29, 2011Publication date: November 3, 2011Inventors: Hidenori Kokubo, Yusuke Tozuka, Jiro Minami
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Publication number: 20110268551Abstract: A counter ejector of cardboard sheet box-making machine is disclosed. A front contact plate 61 contacting cardboard sheets BS is movable in a feed direction FD. A spanker 62 is disposed to face the front contact plate in the feed direction, and contacts the back edge portion of the cardboard sheet, aligning the sheet edge portions. Ledges 63, 64A, and 64B separate cardboard sheets loaded between the front contact plate and the spanker, forming a batch BT of a predetermined number of sheets. A transfer conveyor 60 transfers batches in a transfer direction TD, which is the same direction as the feed direction. An elevator 65 is furnished with a table 65A, and carries batches from the height at which the front contact plate and the spanker are disposed to the height at which the transfer conveyor is disposed. The table is moved by the same amount and in the same movement direction as the movement of the front contact plate.Type: ApplicationFiled: March 29, 2011Publication date: November 3, 2011Inventors: Hidenori Kokubo, Yusuke Tozuka