Patents by Inventor Hiroki SHINAGAWA

Hiroki SHINAGAWA 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: 20240157712
    Abstract: A medium-discharging device includes: a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; a light-emitting section that emits light to the medium-receiving tray; and a control section that controls the light-emitting section, in which the medium-receiving tray is configured to switch between a first state in which the medium-receiving tray is stored in an apparatus main body that includes the medium-discharging section and a second state in which the medium-receiving tray protrudes from the apparatus main body, and the control section controls the light-emitting section in accordance with a state or operation of the medium-receiving tray.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 16, 2024
    Inventors: Kazuo SAITO, Hiroki SHINAGAWA, Satoru ORII, Katsumi YAMADA, Nobuhisa NOMOTO
  • Patent number: 11982961
    Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A shape of a surface of the sliding layer is a curved surface and a radius of curvature R of the curved surface satisfies 300 ?m?R?850 ?m.
    Type: Grant
    Filed: February 9, 2023
    Date of Patent: May 14, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Kawai, Yasuharu Toratani, Hiroshi Miyamoto, Akiyoshi Shinagawa, Ayano Ogata, Daigo Matsuura, Misa Kawashima, Masanobu Tanaka, Asuna Fukamachi
  • Patent number: 11964479
    Abstract: A medium feeding device includes a feeding roller that is provided in a medium feeding path through which a medium is fed and that feeds a medium downstream by rotating in the forward direction in response to power of a motor, a nip roller that is provided in the medium feeding path and that nips a medium in cooperation with the feeding roller and rotates, and a controller configured to control the motor. Based on an increase in a variation value varying in accordance with a drive load of the motor, the controller controls the motor and causes the feeding roller to start a medium feeding operation.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: April 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Keisuke Sasaki, Takayuki Tanaka, Hiroki Shinagawa
  • Patent number: 11960224
    Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A leading end of the plurality of projections is a plane and an average roughness (Ra) of the plane satisfies 0.13 ?m?Ra?1.67 ?m.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: April 16, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akiyoshi Shinagawa, Yasuharu Toratani, Hiroshi Miyamoto, Daigo Matsuura, Hiroki Kawai, Ayano Ogata, Masanobu Tanaka, Asuna Fukamachi, Misa Kawashima
  • Publication number: 20240111998
    Abstract: An inferring device includes one or more memories; and one or more processors. The one or more processors are configured to input information on each atom in an atomic system into a second model to infer a difference between energy based on a first-principles calculation corresponding to the atomic system and energy of an interatomic potential function corresponding to the atomic system.
    Type: Application
    Filed: December 8, 2023
    Publication date: April 4, 2024
    Applicant: Preferred Networks, Inc.
    Inventors: Daisuke MOTOKI, Chikashi SHINAGAWA, So TAKAMOTO, Hiroki IRIGUCHI
  • Patent number: 11912016
    Abstract: A medium-discharging device includes: a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; a light-emitting section that emits light to the medium-receiving tray; and a control section that controls the light-emitting section, in which the medium-receiving tray is configured to switch between a first state in which the medium-receiving tray is stored in an apparatus main body that includes the medium-discharging section and a second state in which the medium-receiving tray protrudes from the apparatus main body, and the control section controls the light-emitting section in accordance with a state or operation of the medium-receiving tray.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: February 27, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Kazuo Saito, Hiroki Shinagawa, Satoru Orii, Katsumi Yamada, Nobuhisa Nomoto
  • Publication number: 20230239413
    Abstract: The recording device includes an upstream transport roller pair capable of transporting a medium, a recording head configured to record an image by discharging ink at a predetermined timing on the medium transported downstream in a Dl direction by a predetermined transport amount by the upstream transport roller pair while moving in a Y-axis direction intersecting the D1 direction, an image capturing unit configured to read the image recorded on the medium by the recording head, and a control unit, wherein the control unit has a function of performing maintenance for a discharge failure of the ink, a correction of the transport amount, and a correction of the discharge timing of the ink based on the reading result of the image read by the image capturing unit.
    Type: Application
    Filed: January 23, 2023
    Publication date: July 27, 2023
    Inventors: Hiroki SHINAGAWA, Kazumasa HARADA
  • Publication number: 20230219352
    Abstract: A medium-discharging device includes: a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; a light-emitting section that emits light to the medium-receiving tray; and a control section that controls the light-emitting section, in which the medium-receiving tray is configured to switch between a first state in which the medium-receiving tray is stored in an apparatus main body that includes the medium-discharging section and a second state in which the medium-receiving tray protrudes from the apparatus main body, and the control section controls the light-emitting section in accordance with a state or operation of the medium-receiving tray.
    Type: Application
    Filed: March 7, 2023
    Publication date: July 13, 2023
    Inventors: Kazuo SAITO, Hiroki SHINAGAWA, Satoru ORII, Katsumi YAMADA, Nobuhisa NOMOTO
  • Publication number: 20230191812
    Abstract: An openable cover automatic opening mechanism 3 includes a lever 11 rotatable about a rotation fulcrum 9, a locking section 13 that is positioned at one end of the lever 11 and that maintains the openable cover 11, which is in a closed state and which receives an opening force F, in the closed state by locking with the openable cover 11, and a power receiving section 17 positioned at the other end 8 of the lever 11 for contacting the horizontally moving carriage 15 to receive power of the carriage 15. The lever 11 rotates when the carriage 15 comes into contact with and presses the power receiving section 17, and releases maintenance of the closed state of the openable cover 5 by the locking section 13.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 22, 2023
    Inventors: Haruki MIYASAKA, Narihiro OKI, Keisuke SASAKI, Hiroki SHINAGAWA
  • Patent number: 11618269
    Abstract: A medium-discharging device includes: a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; a light-emitting section that emits light to the medium-receiving tray; and a control section that controls the light-emitting section, in which the medium-receiving tray is configured to switch between a first state in which the medium-receiving tray is stored in an apparatus main body that includes the medium-discharging section and a second state in which the medium-receiving tray protrudes from the apparatus main body, and the control section controls the light-emitting section in accordance with a state or operation of the medium-receiving tray.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: April 4, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Kazuo Saito, Hiroki Shinagawa, Satoru Orii, Katsumi Yamada, Nobuhisa Nomoto
  • Patent number: 11554597
    Abstract: A medium transport device includes a feeding roller that feeds a recording medium, a transport roller that transports the recording medium toward a recording head, and a transport motor which is a common driving source for the feeding roller and the transport roller. The medium transport device includes a power transmission mechanism that transmits power of the transport motor to the feeding roller, and a control section that controls a current of the transport motor. The control section measures a current value flowing through the transport motor during driving as a measured current value, and adds a predetermined offset value to the measured current value to set a second limit value as a limit value of the current supplied to the transport motor.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: January 17, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Shinagawa, Takayuki Tanaka
  • Patent number: 11485156
    Abstract: A recording device includes a recording head, a transport roller set, and a controller that controls a driving source that drives a transport driving roller. The controller judges whether a rear end that is an upstream end of a medium in a transport direction crosses a kicking region set in a range present downstream of a nipping position of the transport roller set in a transport direction. When the controller judges that the rear end does not cross the kicking region, the controller adjusts a feeding amount for at least one of a plurality of transport operations to be performed until the rear end reaches the kicking region in such a manner that the rear end of the medium crosses the kicking region.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: November 1, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Satoshi Yoshino, Hiroki Shinagawa
  • Publication number: 20220016909
    Abstract: A medium-discharging device includes: a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; a light-emitting section that emits light to the medium-receiving tray; and a control section that controls the light-emitting section, in which the medium-receiving tray is configured to switch between a first state in which the medium-receiving tray is stored in an apparatus main body that includes the medium-discharging section and a second state in which the medium-receiving tray protrudes from the apparatus main body, and the control section controls the light-emitting section in accordance with a state or operation of the medium-receiving tray.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 20, 2022
    Inventors: Kazuo SAITO, Hiroki SHINAGAWA, Satoru ORII, Katsumi YAMADA, Nobuhisa NOMOTO
  • Publication number: 20220009251
    Abstract: A medium transport device includes a feeding roller that feeds a recording medium, a transport roller that transports the recording medium toward a recording head, and a transport motor which is a common driving source for the feeding roller and the transport roller. The medium transport device includes a power transmission mechanism that transmits power of the transport motor to the feeding roller, and a control section that controls a current of the transport motor. The control section measures a current value flowing through the transport motor during driving as a measured current value, and adds a predetermined offset value to the measured current value to set a second limit value as a limit value of the current supplied to the transport motor.
    Type: Application
    Filed: July 12, 2021
    Publication date: January 13, 2022
    Inventors: Hiroki SHINAGAWA, Takayuki TANAKA
  • Publication number: 20210394537
    Abstract: A recording device includes a recording head, a transport roller set, and a controller that controls a driving source that drives a transport driving roller. The controller judges whether a rear end that is an upstream end of a medium in a transport direction crosses a kicking region set in a range present downstream of a nipping position of the transport roller set in a transport direction. When the controller judges that the rear end does not cross the kicking region, the controller adjusts a feeding amount for at least one of a plurality of transport operations to be performed until the rear end reaches the kicking region in such a manner that the rear end of the medium crosses the kicking region.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 23, 2021
    Inventors: Satoshi YOSHINO, Hiroki SHINAGAWA
  • Publication number: 20210187946
    Abstract: A medium feeding device includes a feeding roller that is provided in a medium feeding path through which a medium is fed and that feeds a medium downstream by rotating in the forward direction in response to power of a motor, a nip roller that is provided in the medium feeding path and that nips a medium in cooperation with the feeding roller and rotates, and a controller configured to control the motor. Based on an increase in a variation value varying in accordance with a drive load of the motor, the controller controls the motor and causes the feeding roller to start a medium feeding operation.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 24, 2021
    Inventors: Keisuke SASAKI, Takayuki TANAKA, Hiroki SHINAGAWA
  • Patent number: 9688082
    Abstract: A recording device and control method execute a printhead retraction operation at an appropriate speed when a paper jam occurs, make removing jammed paper easy, and prevent problems from pieces of paper left inside the recording device. The printer 1 retracts the head carriage 59 to the home position HP or away position AP when a paper jam occurs. The retraction distance is calculated, and a retraction speed determined based on a speed control table 100. If the retraction speed is low, there is little chance of pulling on the jammed paper P and making removal of the jammed paper P difficult. If the retraction distance is long, changing retraction speed to a high speed during the retraction operation shortens time of the retraction operation. Therefore, there is little chance of the user tearing the jammed paper P, and little chance of problems caused by pieces of paper left inside.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: June 27, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Shinagawa, Ryuji Moriyama
  • Patent number: 9517643
    Abstract: When a paper jam occurs while printing, the control unit of a printer 1 retracts the head carriage 59 at a slow speed (initial retraction speed V1), and retracts the head carriage 59 at the slow speed to the target retraction position if the access cover 11 is not opened. If the access cover 11 is opened during retraction, the speed of head carriage 59 movement is changed to a faster retraction speed (high retraction speed V2). If the head carriage 59 is retracted quickly when the access cover 11 is opened, there is little chance of a user that wants to quickly restore printer 1 operation catching the stuck paper P on the printhead 22 and tearing the paper P. There is therefore little chance of problems resulting from torn pieces of paper being left inside the printer 1.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: December 13, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Hiroki Shinagawa
  • Publication number: 20160136973
    Abstract: A recording device and control method execute a printhead retraction operation at an appropriate speed when a paper jam occurs, make removing jammed paper easy, and prevent problems from pieces of paper left inside the recording device. The printer 1 retracts the head carriage 59 to the home position HP or away position AP when a paper jam occurs. The retraction distance is calculated, and a retraction speed determined based on a speed control table 100. If the retraction speed is low, there is little chance of pulling on the jammed paper P and making removal of the jammed paper P difficult. If the retraction distance is long, changing retraction speed to a high speed during the retraction operation shortens time of the retraction operation. Therefore, there is little chance of the user tearing the jammed paper P, and little chance of problems caused by pieces of paper left inside.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 19, 2016
    Inventors: Hiroki Shinagawa, Ryuji Moriyama
  • Publication number: 20160136972
    Abstract: When a paper jam occurs while printing, the control unit of a printer 1 retracts the head carriage 59 at a slow speed (initial retraction speed V1), and retracts the head carriage 59 at the slow speed to the target retraction position if the access cover 11 is not opened. If the access cover 11 is opened during retraction, the speed of head carriage 59 movement is changed to a faster retraction speed (high retraction speed V2). If the head carriage 59 is retracted quickly when the access cover 11 is opened, there is little chance of a user that wants to quickly restore printer 1 operation catching the stuck paper P on the printhead 22 and tearing the paper P. There is therefore little chance of problems resulting from torn pieces of paper being left inside the printer 1.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 19, 2016
    Inventor: Hiroki Shinagawa