Patents by Inventor Tetsuji Takeishi

Tetsuji Takeishi 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: 11003122
    Abstract: A printer including a transport path; a transport mechanism that is disposed in the transport path and transports the medium in a transporting direction caused when printing is executed by a recording section; a discharge-side transport path that forms a part of a downstream side in the transporting direction from the recording section in the transport path and is movable to a position close to the transport mechanism and a position separated from the transport mechanism; and a control section that controls the recording section and the transport mechanism. In a state where a transport failure of the medium occurs in the transport path, in a case where a predetermined condition is satisfied, the control section executes an additional transport process of discharging the medium to the discharge-side transport path by transporting the medium in the transporting direction by a predetermined amount by the transport mechanism.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 11, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Yuichi Segawa, Tetsuji Takeishi, Shota Hiramatsu, Masanori Nakata
  • Publication number: 20210114835
    Abstract: A discharging device includes: a pair of medium supporting portions that are provided so as to face each other in a width direction intersecting a transporting direction in which a medium is transported and that support the medium that is transported; and a stacking portion that is provided vertically below the pair of medium supporting portions and on which the medium that drops from the pair of medium supporting portions is stacked, each of the pair of medium supporting portions is configured to move in the width direction, the pair of medium supporting portions are configured to be arranged, after the medium is dropped onto the stacking portion, at positions at which a distance in the width direction becomes a predetermined distance, and the predetermined distance varies in accordance with a width of the medium stacked on the stacking portion.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 22, 2021
    Inventors: Tsuyoshi FURUMIDO, Hirohisa ADACHI, Toshikazu KOTAKA, Tetsuji TAKEISHI
  • Patent number: 10946675
    Abstract: A recording apparatus includes a recording head performing recording on a recording medium; a cassette on which the recording medium to be transported to the recording head is placed; and a transporting path for transporting the recording medium from the cassette to the recording head. In addition, the recording apparatus includes a medium thickness sensor obtaining thickness information by measuring a thickness of the recording medium in the cassette or the transporting path; a surface information acquisition section acquiring surface information of the recording medium in the cassette or the transporting path; and a determination section specifying a type of the recording medium based on the thickness information and the surface information of the recording medium.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 16, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuji Takeishi
  • Publication number: 20200404116
    Abstract: A recording apparatus includes an apparatus body including a recording section configured to record onto a medium and a discharge section configured to discharge the medium recorded by the recording section, and a post-processing unit attached to the apparatus body, the post-processing unit being configured to receive the medium discharged from the discharge section and perform post-processing. The post-processing unit is configured to be moved between a receiving position at which the medium discharged from the discharge section is to be received and a discharge position to which the post-processing unit is moved from the receiving position and at which the medium discharged from the discharge section is discharged to the outside of the post-processing unit without being received into the post-processing unit.
    Type: Application
    Filed: June 16, 2020
    Publication date: December 24, 2020
    Inventor: Tetsuji TAKEISHI
  • Publication number: 20200062008
    Abstract: A recording apparatus includes a recording head performing recording on a recording medium; a cassette on which the recording medium to be transported to the recording head is placed; and a transporting path for transporting the recording medium from the cassette to the recording head. In addition, the recording apparatus includes a medium thickness sensor obtaining thickness information by measuring a thickness of the recording medium in the cassette or the transporting path; a surface information acquisition section acquiring surface information of the recording medium in the cassette or the transporting path; and a determination section specifying a type of the recording medium based on the thickness information and the surface information of the recording medium.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventor: Tetsuji TAKEISHI
  • Patent number: 10336106
    Abstract: A printing apparatus includes a transporting device that transports a medium and a printing unit that prints onto the medium. In addition, the printing apparatus includes an image sensor that images the medium and a controller that detects a displacement amount of the medium in an intersecting direction which intersects a surface to be printed of the medium based on a plurality of images obtained by imaging the medium by the sensor at different times and that controls the transporting device and the printing unit according to the displacement amount.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Tokunaga, Tetsuji Takeishi, Shota Hiramatsu, Hiroki Chino
  • Publication number: 20190079444
    Abstract: A printer including a transport path; a transport mechanism that is disposed in the transport path and transports the medium in a transporting direction caused when printing is executed by a recording section; a discharge-side transport path that forms a part of a downstream side in the transporting direction from the recording section in the transport path and is movable to a position close to the transport mechanism and a position separated from the transport mechanism; and a control section that controls the recording section and the transport mechanism. In a state where a transport failure of the medium occurs in the transport path, in a case where a predetermined condition is satisfied, the control section executes an additional transport process of discharging the medium to the discharge-side transport path by transporting the medium in the transporting direction by a predetermined amount by the transport mechanism.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 14, 2019
    Inventors: Yuichi SEGAWA, Tetsuji TAKEISHI, Shota HIRAMATSU, Masanori NAKATA
  • Patent number: 10097712
    Abstract: A control unit causes a carriage to move in a width direction under a first movement control of changing a location of the carriage with a first resolution so that a sensor located forward in movement detects an edge of a medium. Thereafter, the first movement control is switched to a second movement control of changing the location of the carriage with a second resolution higher than the first resolution and the carriage is caused to move in the width direction so that a sensor located rearward in movement detects the edge.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: October 9, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Noritsuna Rokuhara, Tetsuji Takeishi
  • Publication number: 20170302804
    Abstract: A control unit causes a carriage to move in a width direction under a first movement control of changing a location of the carriage with a first resolution so that a sensor located forward in movement detects an edge of a medium. Thereafter, the first movement control is switched to a second movement control of changing the location of the carriage with a second resolution higher than the first resolution and the carriage is caused to move in the width direction so that a sensor located rearward in movement detects the edge.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 19, 2017
    Inventors: Noritsuna ROKUHARA, Tetsuji TAKEISHI
  • Publication number: 20170225494
    Abstract: A printing apparatus includes a transporting device that transports a medium and a printing unit that prints onto the medium. In addition, the printing apparatus includes an image sensor that images the medium and a controller that detects a displacement amount of the medium in an intersecting direction which intersects a surface to be printed of the medium based on a plurality of images obtained by imaging the medium by the sensor at different times and that controls the transporting device and the printing unit according to the displacement amount.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 10, 2017
    Inventors: Masayuki TOKUNAGA, Tetsuji TAKEISHI, Shota HIRAMATSU, Hiroki CHINO
  • Patent number: 7914112
    Abstract: The invention relates to a printing apparatus that performs printing by scanning a carriage that has a print head in a main scan direction. The printing apparatus according to an aspect of the present invention includes: a carriage motor that drives the carriage; a control unit that controls the driving of the carriage motor; a memory unit that stores a plurality of patterns of velocity data regarding at least either one of scanning speeds of the carriage after start of the scanning and driving speeds of the carriage motor corresponding to the scanning speeds of the carriage; and a driving mode switchover unit that switches over the patterns of the velocity data, wherein the control unit controls the driving of the carriage motor in such a manner that the carriage is scanned on the basis of the velocity data selected by the driving mode switchover unit.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: March 29, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Toru Hayashi, Tetsuji Takeishi
  • Patent number: 7862139
    Abstract: In order to adjust a level of a detection signal output from an optical sensor in accordance with a state of a target object in a liquid ejecting apparatus, the optical sensor includes a light emitting element operable to irradiate the detected object and a light receiving element operable to detect a light amount which varies in accordance with the state of the target object. The detection signal is output from the optical sensor, based on the detected light amount. Luminance of the light emitting element is adjusted based on the detection signal, so that the level of the detection signal falls within a prescribed range.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: January 4, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuji Takeishi, Kenji Hatada
  • Patent number: 7654631
    Abstract: In order to calculate a threshold value for a detection signal output from an optical sensor in accordance with a state of a target object in a liquid ejecting apparatus, the optical sensor includes a light emitting element operable to irradiate the detected object and a light receiving element operable to detect a light amount which varies in accordance with the state of the target object. The detection signal is output from the optical sensor, based on the detected light amount. A level of the detection signal is adjusted so as to fall within a prescribed range. The threshold value is calculated based on the adjusted level of the detection signal.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: February 2, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuji Takeishi, Kenji Hatada
  • Patent number: 7615958
    Abstract: The present invention is a motor control device comprising a control system, the control system being capable of controlling the motor by PWM and having integration means being capable of outputting an integrated value obtained by integrating a deviation between a rotation speed and a target rotation speed of a motor, the motor control device being capable of starting control with the control system for causing the motor to rotate at the target rotation speed after rotation of the motor has been started. In this motor control device, an output value of the integration means at a time when control with the control system is to be started is set to have a value that corresponds to a counter electromotive force generated in the motor by its rotation.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: November 10, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuji Takeishi, Hirotomo Tanaka
  • Patent number: 7455380
    Abstract: A printing apparatus includes: a carrying mechanism that carries a medium; a printing section that carries out printing with respect to the medium; a contact sensor that detects the medium by coming into contact with the medium that is carried by the carrying mechanism; a controller that receives a signal that is output from the contact sensor; and a memory that stores measurement data of a time from when the contact sensor and the medium enter a non-contact state until a signal that is output from the contact sensor and that indicates that the medium is not being detected is received by the controller.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: November 25, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuji Takeishi
  • Publication number: 20080278103
    Abstract: The present invention is a motor control device comprising a control system, the control system being capable of controlling the motor by PWM and having integration means being capable of outputting an integrated value obtained by integrating a deviation between a rotation speed and a target rotation speed of a motor, the motor control device being capable of starting control with the control system for causing the motor to rotate at the target rotation speed after rotation of the motor has been started. In this motor control device, an output value of the integration means at a time when control with the control system is to be started is set to have a value that corresponds to a counter electromotive force generated in the motor by its rotation.
    Type: Application
    Filed: July 1, 2008
    Publication date: November 13, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tetsuji TAKEISHI, Hirotomo Tanaka, Sumito Anzai
  • Patent number: 7431414
    Abstract: A printer-control apparatus, a printer-control method, and a printer according to the invention sequentially record a relative position of a printing medium specified from an accumulated carried amount of the printing medium and/or driving speed of a paper-feed motor for driving a printing medium carrying mechanism for carrying the printing medium for a period longer than reaction delay time at every time interval shorter than the reaction delay time as a time difference between a time when a front edge or a rear edge of the printing medium reaches an initial position of a swing pin of a mechanical paper detection sensor which detects the front edge and/or the rear edge of the printing medium by swinging operation of the swing pin and a time when the front or rear edge of the printing medium is detected.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: October 7, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuji Takeishi, Hirotomo Tanaka
  • Patent number: 7417400
    Abstract: The present invention is a motor control device comprising a control system, the control system being capable of controlling the motor by PWM and having integration means being capable of outputting an integrated value obtained by integrating a deviation between a rotation speed and a target rotation speed of a motor, the motor control device being capable of starting control with the control system for causing the motor to rotate at the target rotation speed after rotation of the motor has been started. In this motor control device, an output value of the integration means at a time when control with the control system is to be started is set to have a value that corresponds to a counter electromotive force generated in the motor by its rotation.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: August 26, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuji Takeishi, Hirotomo Tanaka, Sumito Anzai
  • Publication number: 20080063455
    Abstract: The invention relates to a printing apparatus that performs printing by scanning a carriage that has a print head in a main scan direction. The printing apparatus according to an aspect of the present invention includes: a carriage motor that drives the carriage; a control unit that controls the driving of the carriage motor; a memory unit that stores a plurality of patterns of velocity data regarding at least either one of scanning speeds of the carriage after start of the scanning and driving speeds of the carriage motor corresponding to the scanning speeds of the carriage; and a driving mode switchover unit that switches over the patterns of the velocity data, wherein the control unit controls the driving of the carriage motor in such a manner that the carriage is scanned on the basis of the velocity data selected by the driving mode switchover unit.
    Type: Application
    Filed: September 12, 2007
    Publication date: March 13, 2008
    Applicant: Seiko Epson Corporation
    Inventors: Toru Hayashi, Tetsuji Takeishi
  • Publication number: 20080036814
    Abstract: In order to calculate a threshold value for a detection signal output from an optical sensor in accordance with a state of a target object in a liquid ejecting apparatus, the optical sensor includes a light emitting element operable to irradiate the detected object and a light receiving element operable to detect a light amount which varies in accordance with the state of the target object. The detection signal is output from the optical sensor, based oh the detected light amount. A level of the detection signal is adjusted so as to fall within a prescribed range. The threshold value is calculated based on the adjusted level of the detection signal.
    Type: Application
    Filed: April 3, 2007
    Publication date: February 14, 2008
    Applicant: Seiko Epson Corporation
    Inventors: Tetsuji Takeishi, Kenji Hatada