Patents by Inventor Tomoyuki Shiiya

Tomoyuki Shiiya 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: 11130356
    Abstract: A detection device including a first belt stretched over a first pulley and a second pulley, a first sensor being fixed to the first belt, a second belt stretched over a third pulley and a fourth pulley to be arranged in parallel to the first belt, a second sensor being fixed to the second belt, a drive unit configured to generate a driving force for moving the first belt and the second belt, a first rotation shaft, the first pulley being fixed to the first rotation shaft, a second rotation shaft, the third pulley being fixed to the second rotation shaft, and a coupling unit configured to couple the first rotation shaft with the second rotation shaft, in which the coupling unit is configured to adjust an angle as viewed from an axial direction of one of the first rotation shaft and the second rotation shaft.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: September 28, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Tomoyuki Shiiya, Yuya Kandabayashi
  • Patent number: 11020989
    Abstract: A roll paper steering device includes a guide rail fixed to a main body frame, a guide engaged with the guide rail, a holding shaft fixing member supported by the guide rail via the guide, a roll paper holding unit including a roll shaft and mounted to the holding shaft fixing member, a movable member configured to adjustably mount to the holding shaft fixing member, a nut member that includes an internal thread portion that screws into the external thread portion and that is fixed to the main body frame in a posture where the axis of the external thread portion is parallel with the guide rail, a first adjustment unit configured to adjust the posture of the holding shaft fixing member, and a second adjustment unit configured to adjust the position at which the movable member.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: June 1, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Shigeki Kato, Tomoyuki Shiiya, Atsushi Miyasaka
  • Publication number: 20200269609
    Abstract: A roll paper steering device includes a guide rail fixed to a main body frame, a guide engaged with the guide rail, a holding shaft fixing member supported by the guide rail via the guide, a roll paper holding unit including a roll shaft and mounted to the holding shaft fixing member, a movable member configured to adjustably mount to the holding shaft fixing member, a nut member that includes an internal thread portion that screws into the external thread portion and that is fixed to the main body frame in a posture where the axis of the external thread portion is parallel with the guide rail, a first adjustment unit configured to adjust the posture of the holding shaft fixing member, and a second adjustment unit configured to adjust the position at which the movable member.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 27, 2020
    Inventors: Shigeki KATO, Tomoyuki Shiiya, Atsushi Miyasaka
  • Publication number: 20200262218
    Abstract: A detection device including a first belt stretched over a first pulley and a second pulley, a first sensor being fixed to the first belt, a second belt stretched over a third pulley and a fourth pulley to be arranged in parallel to the first belt, a second sensor being fixed to the second belt, a drive unit configured to generate a driving force for moving the first belt and the second belt, a first rotation shaft, the first pulley being fixed to the first rotation shaft, a second rotation shaft, the third pulley being fixed to the second rotation shaft, and a coupling unit configured to couple the first rotation shaft with the second rotation shaft, in which the coupling unit is configured to adjust an angle as viewed from an axial direction of one of the first rotation shaft and the second rotation shaft.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Inventors: Tomoyuki Shiiya, Yuya Kandabayashi
  • Patent number: 10273105
    Abstract: A printing apparatus includes a mark sensor, a moving section, a web edge sensor, and a printer control section. The moving section can move the mark sensor in a direction intersecting a transport direction of a sheet, or in a width direction. The web edge sensor can detect a location of an edge of the sheet. The printer control section controls the moving section to compensate for a location of the mark sensor, on the basis of a detection result from the web edge sensor which indicates the location of the edge of the sheet.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 30, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Takahiro Yamashita, Tomoyuki Shiiya
  • Patent number: 10173442
    Abstract: A printing method of a printing apparatus which includes a transport unit, a transport position output unit, a mark detecting unit, a steering unit, and a storage unit, the method including first processing in which the medium is transported by a first distance in the second direction, and positions the first mark on the downstream side of the detecting region in the second direction; second processing in which arriving at a predetermined position of the first mark is detected based on the output value of the drum encoder and a reference value; and third processing in which printing is started based on a detecting timing of the first mark, in which the first distance is a first stable transport distance or more which converges a deviation amount in the third direction into a predetermined first deviation amount until the first mark reaches the first predetermined position.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: January 8, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Tomoyuki Shiiya, Masashi Kitahara
  • Publication number: 20180272759
    Abstract: A printing method of a printing apparatus which includes a transport unit, a transport position output unit, a mark detecting unit, a steering unit, and a storage unit, the method including first processing in which the medium is transported by a first distance in the second direction, and positions the first mark on the downstream side of the detecting region in the second direction; second processing in which arriving at a predetermined position of the first mark is detected based on the output value of the drum encoder and a reference value; and third processing in which printing is started based on a detecting timing of the first mark, in which the first distance is a first stable transport distance or more which converges a deviation amount in the third direction into a predetermined first deviation amount until the first mark reaches the first predetermined position.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 27, 2018
    Inventors: Tomoyuki SHIIYA, Masashi KITAHARA
  • Patent number: 9925764
    Abstract: There is provided a printing apparatus including: a mark detector which detects a mark that is formed on a recording medium and has a width in a first direction in a detection region thereof, and is supported to be rotatable around a rotation shaft that is parallel to a second direction intersecting with the first direction; a driving portion which drives the mark detector in the first direction; an angle determination portion which determines a rotation angle of the mark detector that considers the rotation shaft as a center; and a control portion which matches positions of the detection region and the mark in the first direction by adjusting a position of the mark detector in the first direction by the driving portion based on the rotation angle of the mark detector which is determined by the angle determination portion.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: March 27, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Tomoyuki Shiiya
  • Publication number: 20170305147
    Abstract: There is provided a printing apparatus including: a mark detector which detects a mark that is formed on a recording medium and has a width in a first direction in a detection region thereof, and is supported to be rotatable around a rotation shaft that is parallel to a second direction intersecting with the first direction; a driving portion which drives the mark detector in the first direction; an angle determination portion which determines a rotation angle of the mark detector that considers the rotation shaft as a center; and a control portion which matches positions of the detection region and the mark in the first direction by adjusting a position of the mark detector in the first direction by the driving portion based on the rotation angle of the mark detector which is determined by the angle determination portion.
    Type: Application
    Filed: April 19, 2017
    Publication date: October 26, 2017
    Inventor: Tomoyuki SHIIYA
  • Patent number: 9475315
    Abstract: The liquid discharge apparatus includes a support member supporting a medium while rotating, a head facing the support member and discharging a liquid, a conveyance part conveying a medium between the support member and the head, and a foreign matter detection unit detecting a foreign matter heading toward between the support member and the head in association with the conveyance of the medium. The foreign matter detection unit has a movable roller that faces the support member upstream relative to the head in a conveyance direction of the medium, and nips the medium between the support member and the movable roller, a rotational support member rotatably supporting the movable roller to allow inclination of the movable roller relative to a rotational axis direction, which is a center of rotation of the support member, and a retention member movably retaining the rotational support member in a direction toward the support member.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: October 25, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Toyama, Tomoyuki Shiiya
  • Publication number: 20160272451
    Abstract: A printing apparatus includes a mark sensor, a moving section, a web edge sensor, and a printer control section. The moving section can move the mark sensor in a direction intersecting a transport direction of a sheet, or in a width direction. The web edge sensor can detect a location of an edge of the sheet. The printer control section controls the moving section to compensate for a location of the mark sensor, on the basis of a detection result from the web edge sensor which indicates the location of the edge of the sheet.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 22, 2016
    Inventors: Takahiro YAMASHITA, Tomoyuki SHIIYA
  • Publication number: 20160236475
    Abstract: The liquid discharge apparatus includes a support member supporting a medium while rotating, a head facing the support member and discharging a liquid, a conveyance part conveying a medium between the support member and the head, and a foreign matter detection unit detecting a foreign matter heading toward between the support member and the head in association with the conveyance of the medium. The foreign matter detection unit has a movable roller that faces the support member upstream relative to the head in a conveyance direction of the medium, and nips the medium between the support member and the movable roller, a rotational support member rotatably supporting the movable roller to allow inclination of the movable roller relative to a rotational axis direction, which is a center of rotation of the support member, and a retention member movably retaining the rotational support member in a direction toward the support member.
    Type: Application
    Filed: February 8, 2016
    Publication date: August 18, 2016
    Inventors: Hiroshi TOYAMA, Tomoyuki SHIIYA
  • Publication number: 20160229206
    Abstract: A print apparatus includes a printing part configured to print an image onto a first medium, and a take-up part that has a take-up spindle configured to retain a tube onto which the first medium has been mounted and has a motor configured to cause the take-up spindle to rotate such that the first medium is taken up onto the tube. The take-up spindle has an elastic member configured to be disposed on an inside of the tube. The take-up spindle is configured to retain the tube by the elastic member being inflated by gas pressure and being pressed against an inner surface of the tube. The motor is configured to rotate the take-up spindle by a direct drive approach.
    Type: Application
    Filed: February 8, 2016
    Publication date: August 11, 2016
    Inventors: Katsuyoshi ONODERA, Naoki HORI, Tomoyuki SHIIYA
  • Patent number: 9050833
    Abstract: An image recording apparatus includes an ejecting head which ejects photocurable liquid onto the recording medium; and a light irradiator which radiates the light to the liquid which is ejected onto the recording medium, in which the light irradiator includes a light source substrate which is arranged so as to face the recording medium, and includes a light source which radiates the light to the recording medium; a heat transport member which includes a portion to be connected which is in thermal contact with the light source substrate, and a portion to be cooled which is located at a position which is further separated from the light source substrate than the portion to be connected, and transports heat from the portion to be connected to the portion to be cooled; and a cooling fan which cools down the portion to be cooled.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: June 9, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Tomoyuki Shiiya
  • Patent number: 8931883
    Abstract: A head driving mechanism includes a first cam follower an end portion of which is attached to a first holding unit and the other end portion of which includes a first sliding-contact surface disposed in sliding contact with a cam, and a second cam follower an end portion of which is attached to the second holding unit and the other end portion of which includes a second sliding-contact surface disposed in sliding contact with the cam. The first cam follower and the second cam follower are each displaced by rotation of the cam so as to move the first printing head and the second printing head, while the first sliding-contact surface and the second sliding-contact surface are in sliding contact with an outer circumferential surface of the cam.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: January 13, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Tomoyuki Shiiya
  • Publication number: 20140267518
    Abstract: An image recording apparatus includes an ejecting head which ejects photocurable liquid onto the recording medium; and a light irradiator which radiates the light to the liquid which is ejected onto the recording medium, in which the light irradiator includes a light source substrate which is arranged so as to face the recording medium, and includes a light source which radiates the light to the recording medium; a heat transport member which includes a portion to be connected which is in thermal contact with the light source substrate, and a portion to be cooled which is located at a position which is further separated from the light source substrate than the portion to be connected, and transports heat from the portion to be connected to the portion to be cooled; and a cooling fan which cools down the portion to be cooled.
    Type: Application
    Filed: February 20, 2014
    Publication date: September 18, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tomoyuki SHIIYA
  • Patent number: 8644719
    Abstract: A cleaning device includes a cleaning roller which contacts an intermediate transfer belt for carrying an image developed using a liquid developer, a cleaning roller which contacts the other cleaning roller and has a greater axial length than the other cleaning roller, and a rubber blade which contacts the cleaning roller and has a greater axial length than the cleaning roller.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 4, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tomoyuki Shiiya, Satoshi Chiba
  • Patent number: 8611776
    Abstract: A cleaning apparatus includes a first cleaning roller, and a second cleaning roller. The first cleaning roller is contrived to contact to a circumferential surface against a moving member to be cleaned and to apply a bias to the member to be cleaned while rotating such that the circumferential surface of the first cleaning roller moves in a same direction as the member to be cleaned moves. The second cleaning roller is contrived to contact to the member to be cleaned after the member has been cleaned by the first cleaning roller and to rotate such that a circumferential surface of the second cleaning roller moves in a direction opposite a direction in which the member being cleaned moves.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: December 17, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Itaru Kozuma, Tomoyuki Shiiya, Tsutomu Sasaki
  • Publication number: 20130286093
    Abstract: A head driving mechanism includes a first cam follower an end portion of which is attached to a first holding unit and the other end portion of which includes a first sliding-contact surface disposed in sliding contact with a cam, and a second cam follower an end portion of which is attached to the second holding unit and the other end portion of which includes a second sliding-contact surface disposed in sliding contact with the cam. The first cam follower and the second cam follower are each displaced by rotation of the cam so as to move the first printing head and the second printing head, while the first sliding-contact surface and the second sliding-contact surface are in sliding contact with an outer circumferential surface of the cam.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 31, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tomoyuki SHIIYA
  • Patent number: 8311445
    Abstract: An image forming apparatus includes: a latent image bearing member on which a latent image is formed; a developing unit that develops the latent image using a liquid developer; a transfer member onto which the image is transferred; a cleaning unit that cleans the latent image bearing member; a cleaning roller, to which a bias is applied, that cleans the transfer member by making contact with the transfer member; a blade that cleans the cleaning roller by making contact with the cleaning roller; a cleaning blade that cleans the transfer member cleaned by the cleaning roller by making contact with the transfer member; a holding unit that holds collected material scratched by the blade and the cleaning blade; an application unit that applies the collected material to the cleaning roller; and a transport channel that transports the collected material collected by the cleaning unit to the holding unit.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: November 13, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tomoyuki Shiiya, Ken Ikuma