Patents by Inventor Kazuyoshi Ohashi

Kazuyoshi Ohashi 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: 11897255
    Abstract: A recording unit which is provided in a recording system includes a heat roller pair which contacts paper and performs drying of the paper after recording by a line head using heating and a control unit which controls operation of the heat roller pair, in which a heating region of the heat roller pair is divided into a plurality of subdivisions in a width direction which intersects the medium transport direction and the heat roller pair is configured to be capable of modifying a heating state for each subdivision region, and in which the control unit controls the heating state of each of the subdivision regions in the heat roller pair according to conditions when performing drying of the paper using the heat roller pair.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: February 13, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Nobuyuki Mizushima, Kazuyoshi Ohashi, Akinori Muromachi, Kohei Ueno
  • Publication number: 20230331014
    Abstract: An apparatus includes a component constituting an exterior of the apparatus itself and including an outer surface constituting the exterior, an information medium provided at an information medium surface of the component and configured to provide access to disassembly-related information related to disassembly of the apparatus itself, and a display portion provided covering the information medium and configured to display apparatus information different from the disassembly-related information.
    Type: Application
    Filed: April 14, 2023
    Publication date: October 19, 2023
    Inventors: Yutaro HARADA, Kazuyoshi OHASHI, Kohei UENO
  • Patent number: 11755861
    Abstract: A printing system includes a printing unit, a position determiner that randomly determines a position where a first information code is to be set, a modifier that modifies print data for printing an image, the first information code, and a positional information code having recorded therein positional information at the time of printing that indicates the position determined by the position determiner so that the first information code is set at the position determined by the position determiner, an acquirer that acquires the position of the first information code on a print medium as positional information and acquires the positional information at the time of the printing from the positional information code, and a determiner that determines whether the printing result is a falsified matter based on comparison of the positional information after the printing with the positional information at the time of the printing.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: September 12, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Kazuyoshi Ohashi, Shun Hara, Kenji Uchibori, Riku Maeda, Hirofumi Yanagisawa, Yu Tsumuraya, Kei Sadakuni
  • Publication number: 20230249938
    Abstract: A post-processing device includes a loading unit on which a sheet is loaded, a first transport unit configured to apply, to the sheet loaded on the loading unit, a transport force toward an alignment unit, a second transport unit located between the first transport unit and the alignment unit, and configured to apply, to the sheet, a transport force toward the alignment unit, a control unit configured to control rotation operation of the second transport unit, and a post-processing unit configured to perform post-processing on the sheet transported to the alignment unit, wherein the post-processing unit is configured to execute a plurality of types of the post-processing, and the control unit is configured to control the rotation operation of the second transport unit in accordance with the type of the post-processing.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 10, 2023
    Inventors: Kenji UCHIBORI, Masaki MIYAZAWA, Kazuyoshi OHASHI
  • Patent number: 11713206
    Abstract: A medium loading device includes a side end aligning member which is positioned at a standby position when a medium is ejected; and a control section. When a value based on first information relating to recording density of a medium to be ejected this time and at least one medium among the media ejected previously is equal to or greater than a threshold value, the control section specifies a first position, which overlaps the medium to be ejected this time, as the standby position, and when the value based on the first information is less than the threshold value, the control section specifies a second position, which does not overlap the medium to be ejected this time, as the standby position, and the control section adjusts the threshold value based on second information relating to at least one medium among the media recorded before the ejection at this time.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: August 1, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Hirofumi Yanagisawa, Kazuyoshi Ohashi, Shun Hara, Kenji Uchibori, Kei Sadakuni
  • Patent number: 11661298
    Abstract: A medium transport unit includes an upstream route in which a print sheet is transported, a first switchback route, a second switchback route, a first guide route, a second guide route, a guide flap configured to switch the route so that the print sheet in the upstream route is transported either toward the first guide route or toward the second guide route, a first discharge route from which the print sheet in the first switchback route is discharged, a second discharge route from which the print sheet in the second switchback route is discharged, and a downstream route passing between the first switchback route and the second switchback route and having an upstream end connected to a junction of downstream ends of the first discharge route and the second discharge route.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: May 30, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Kodama, Yuichi Segawa, Kazuyoshi Ohashi
  • Patent number: 11661300
    Abstract: A medium transporting apparatus includes a mounting portion configured to mount a medium, and a pressing portion configured to switch between a first state for pressing the medium against the mounting portion and a second state for releasing the medium. The pressing portion takes the first state in waiting for the medium to the mounting portion, switches to the second state in response to the sent medium and returns to the first state after the medium is sent to the mounting portion. When the last medium is mounted on the mounting portion, a timing at which the pressing portion returns to the first state from the second state is delayed with respect to the timing of the return therebefore.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 30, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Nobuyuki Mizushima, Kazuyoshi Ohashi, Akinori Muromachi, Kohei Ueno
  • Patent number: 11639280
    Abstract: A medium discharging device includes a first tray, a second tray receiving a medium from the first tray, a supporter which is configured to be displaced from a retreat position in the first tray and an advance position above the second tray and which supports the medium, an aligner which is provided in the supporter and that aligns a first end portion which is an upstream end portion in a discharge direction of the medium supported by the supporter, to be displaced together with the supporter, and a restrictor configured to be displaced between a restriction position where an upstream movement of the first end portion of the medium in a position of the aligner in the discharge direction and a non-restriction position where the movement is not restricted, when the supporter is in the advance position.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 2, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Akinobu Nakahata, Tsuyoshi Furumido, Masaki Miyazawa, Kazuyoshi Ohashi
  • Patent number: 11633964
    Abstract: An intermediate unit includes a transportation path provided with a drying unit that accelerates the drying of the medium. The transportation path includes an inlet path, an outlet path, a first branch path, a second branch path, a first junction path, a second junction path, a switch-back type inversion path with a first inversion path and a second inversion path. The first branch path and the second branch path which branch off at a branch point from the inlet path. The first junction path and the second junction path and the outlet path join each other at a junction point. The first branch path and the first junction path and the first inversion path join each other at a first connection point. The second branch path and the second junction path and the second inversion path join each other at a second connection point.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 25, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Yutaro Harada, Kohei Ueno, Akinori Muromachi, Hidetoshi Kodama, Kazuyoshi Ohashi, Tsuyoshi Furumido, Hirohisa Adachi
  • Publication number: 20230053483
    Abstract: A printing system includes a printing unit, a position determiner that randomly determines a position where a first information code is to be set, a modifier that modifies print data for printing an image, the first information code, and a positional information code having recorded therein positional information at the time of printing that indicates the position determined by the position determiner so that the first information code is set at the position determined by the position determiner, an acquirer that acquires the position of the first information code on a print medium as positional information and acquires the positional information at the time of the printing from the positional information code, and a determiner that determines whether the printing result is a falsified matter based on comparison of the positional information after the printing with the positional information at the time of the printing.
    Type: Application
    Filed: August 17, 2022
    Publication date: February 23, 2023
    Inventors: Kazuyoshi OHASHI, Shun HARA, Kenji UCHIBORI, Riku MAEDA, Hirofumi YANAGISAWA, Yu TSUMURAYA, Kei SADAKUNI
  • Publication number: 20220281702
    Abstract: A medium loading device includes a side end aligning member which is positioned at a standby position when a medium is ejected; and a control section. When a value based on first information relating to recording density of a medium to be ejected this time and at least one medium among the media ejected previously is equal to or greater than a threshold value, the control section specifies a first position, which overlaps the medium to be ejected this time, as the standby position, and when the value based on the first information is less than the threshold value, the control section specifies a second position, which does not overlap the medium to be ejected this time, as the standby position, and the control section adjusts the threshold value based on second information relating to at least one medium among the media recorded before the ejection at this time.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 8, 2022
    Inventors: Hirofumi YANAGISAWA, Kazuyoshi OHASHI, Shun HARA, Kenji UCHIBORI, Kei SADAKUNI
  • Publication number: 20220274427
    Abstract: A recording system 1 includes a first discharge portion that discharges medium recorded on by ejecting ink, a stacking tray configured to have stacked thereon the medium P discharged by the first discharge portion, a raising and lowering mechanism 78 configured to raise and lower the stacking tray, a control unit 25 that controls the raising and lowering mechanism 78, and an estimation unit 51 configured to estimate weight of the medium P loaded on the stacking tray, wherein the control unit 25 controls the raising and lowering operation of the stacking tray based on the weight of the medium estimated by the estimation unit 51.
    Type: Application
    Filed: February 28, 2022
    Publication date: September 1, 2022
    Inventors: Kazuyoshi OHASHI, Yu TSUMURAYA
  • Publication number: 20220105734
    Abstract: An intermediate unit includes a transportation path provided with a drying unit that accelerates the drying of the medium. The transportation path includes an inlet path, an outlet path, a first branch path, a second branch path, a first junction path, a second junction path, a switch-back type inversion path with a first inversion path and a second inversion path. The first branch path and the second branch path which branch off at a branch point from the inlet path. The first junction path and the second junction path and the outlet path join each other at a junction point. The first branch path and the first junction path and the first inversion path join each other at a first connection point. The second branch path and the second junction path and the second inversion path join each other at a second connection point.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Inventors: Yutaro HARADA, Kohei UENO, Akinori MUROMACHI, Hidetoshi KODAMA, Kazuyoshi OHASHI, Tsuyoshi FURUMIDO, Hirohisa ADACHI
  • Patent number: 11235594
    Abstract: An intermediate unit includes a transportation path along which a medium, on which printing has been performed by a printing unit that performs printing on the medium by using liquid, is transported to a post processing unit that performs post processing on the medium. The transportation path is provided with a drying unit that accelerates the drying of the medium. The drying unit is driven according to the printing data.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: February 1, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Yutaro Harada, Kohei Ueno, Akinori Muromachi, Hidetoshi Kodama, Kazuyoshi Ohashi, Tsuyoshi Furumido, Hirohisa Adachi
  • Patent number: 11180336
    Abstract: A medium transporting apparatus includes a transport belt that has a loop shaped, a cling mechanism that causes the medium to cling to the transport belt, a rotation mechanism that transports the medium by rotating the transport belt, a plurality of detection units that detect an transport direction end of the medium, a controller that corrects a skew of the medium, and a stacker on which the medium transported by the transport belt is stacked, in which the plurality of detection units are arranged at positions that are on an upstream side of the transport belt in the first transport direction and that are different from each other in a width direction, and the controller corrects, according to a result of the detection by the detection units, the skew of the medium in a state of being cling to the transport belt.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 23, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kazuyoshi Ohashi, Tsuyoshi Furumido, Akinobu Nakahata, Katsuyuki Kondo
  • Publication number: 20210347594
    Abstract: A medium transport unit includes an upstream route in which a print sheet is transported, a first switchback route, a second switchback route, a first guide route, a second guide route, a guide flap configured to switch the route so that the print sheet in the upstream route is transported either toward the first guide route or toward the second guide route, a first discharge route from which the print sheet in the first switchback route is discharged, a second discharge route from which the print sheet in the second switchback route is discharged, and a downstream route passing between the first switchback route and the second switchback route and having an upstream end connected to a junction of downstream ends of the first discharge route and the second discharge route.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Inventors: Hidetoshi KODAMA, Yuichi Segawa, Kazuyoshi Ohashi
  • Patent number: 11091343
    Abstract: A medium transporting apparatus including a transport belt that transports a medium while suctioning the medium against a transport surface, a first tray on which the medium transported with the transport belt is mounted, and a transport roller configured to move between a transporting position that nips the medium with the transport belt, and a retracted position that is a position distanced away from the transport belt with respect to the transporting position, in which the transport roller is positioned at the retracted position when a single medium is transported with the transport belt and is positioned at the transporting position when a plurality of mediums in a superposed state are transported with the transport belt.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: August 17, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Akinobu Nakahata, Tsuyoshi Furumido, Masaki Miyazawa, Kazuyoshi Ohashi
  • Patent number: 11090952
    Abstract: A medium transport unit includes an upstream route in which a print sheet is transported, a first switchback route, a second switchback route, a first guide route, a second guide route, a guide flap configured to switch the route so that the print sheet in the upstream route is transported either toward the first guide route or toward the second guide route, a first discharge route from which the print sheet in the first switchback route is discharged, a second discharge route from which the print sheet in the second switchback route is discharged, and a downstream route passing between the first switchback route and the second switchback route and having an upstream end connected to a junction of downstream ends of the first discharge route and the second discharge route.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: August 17, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Kodama, Yuichi Segawa, Kazuyoshi Ohashi
  • Publication number: 20210245526
    Abstract: A recording unit which is provided in a recording system includes a heat roller pair which contacts paper and performs drying of the paper after recording by a line head using heating and a control unit which controls operation of the heat roller pair, in which a heating region of the heat roller pair is divided into a plurality of subdivisions in a width direction which intersects the medium transport direction and the heat roller pair is configured to be capable of modifying a heating state for each subdivision region, and in which the control unit controls the heating state of each of the subdivision regions in the heat roller pair according to conditions when performing drying of the paper using the heat roller pair.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Inventors: Nobuyuki MIZUSHIMA, Kazuyoshi OHASHI, Akinori MUROMACHI, Kohei UENO
  • Patent number: 11040551
    Abstract: A recording unit which is provided in a recording system includes a heat roller pair which contacts paper and performs drying of the paper after recording by a line head using heating and a control unit which controls operation of the heat roller pair, in which a heating region of the heat roller pair is divided into a plurality of subdivisions in a width direction which intersects the medium transport direction and the heat roller pair is configured to be capable of modifying a heating state for each subdivision region, and in which the control unit controls the heating state of each of the subdivision regions in the heat roller pair according to conditions when performing drying of the paper using the heat roller pair.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 22, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Nobuyuki Mizushima, Kazuyoshi Ohashi, Akinori Muromachi, Kohei Ueno