Patents by Inventor Tetsuo Tatsuda

Tetsuo Tatsuda 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: 11472175
    Abstract: A failure time estimation device includes: a memory configured to store a machine-learned model obtained by performing machine learning using teaching data associating printer information including at least one of operation history of a printer, state information indicating a current state, and a print result image indicating a print result with failure time of the printer; and a controller configured to obtain the printer information and estimate the failure time of the printer using the obtained printer information and the machine-learned model.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: October 18, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Shigenori Katayama, Kazunari Tsukada, Yuichi Shikagawa, Tetsuo Tatsuda, Mamoru Ukita, Haruhisa Kurane
  • Patent number: 11323575
    Abstract: A printing abnormality detection system includes a printer that prints an image on a printing medium based on image data, a reader that reads the image printed on the printing medium, a processing unit that detects an abnormal printed portion based on read image data from the reader, a storage unit that stores information of a display necessity determination criterion, and a display unit. The processing unit determines, based on the image data, the read image data, and the display necessity determination criterion, whether the abnormal printed portion is to be displayed on the display unit. When the processing unit determines that the abnormal printed portion is to be displayed, the processing unit executes a process of displaying, on the display unit, abnormal printed portion information including an image of the abnormal printed portion.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: May 3, 2022
    Inventor: Tetsuo Tatsuda
  • Patent number: 11210046
    Abstract: A printer includes: a memory configured to store a machine-learned model obtained by machine learning using teaching data associating at least one of reflectance of a print medium, transmittance of the print medium, and image data obtained by capturing an image of a surface of the print medium with a type of the print medium; and a print controller configured to determine a type of a print medium using at least one of reflectance of the print medium, transmittance of the print medium, and image data obtained by capturing an image of a surface of the print medium and the machine-learned model.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: December 28, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Yuichi Shikagawa, Tetsuo Tatsuda, Haruhisa Kurane, Mamoru Ukita, Shigenori Katayama, Kazunari Tsukada
  • Patent number: 11198312
    Abstract: A method for determining a working gap includes a first recording step for ejecting ink from a recording head onto a first recording medium to record a test pattern, a first imaging step for capturing the test pattern recorded on the first recording medium in each of a state where a distance between the recording head and the first recording medium is a first distance, and a state where a distance between the recording head and the first recording medium is a second distance, a function calculating step, a second recording step for recording the test pattern on a second recording medium, a second imaging step for capturing the test pattern recorded on the second recording medium, and a working gap determining step for determining, based on the number of pixels of the captured test pattern and a function, a distance between the recording head and the second recording medium.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: December 14, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kazuaki Sakurada, Tetsuo Tatsuda, Yuichi Shikagawa, Mamoru Ukita
  • Publication number: 20210385338
    Abstract: A printing abnormality detection system includes a printer that prints an image on a printing medium based on image data, a reader that reads the image printed on the printing medium, a processing unit that detects an abnormal printed portion based on read image data from the reader, a storage unit that stores information of a display necessity determination criterion, and a display unit. The processing unit determines, based on the image data, the read image data, and the display necessity determination criterion, whether the abnormal printed portion is to be displayed on the display unit. When the processing unit determines that the abnormal printed portion is to be displayed, the processing unit executes a process of displaying, on the display unit, abnormal printed portion information including an image of the abnormal printed portion.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 9, 2021
    Inventor: Tetsuo TATSUDA
  • Patent number: 11165915
    Abstract: A printer including a motor for transporting an object to be transported, the printer includes: a memory storing a machine-learned model configured to output a control parameter of the motor that brings a transport position of the object to be transported close to a reference based on one or more state variables including at least one of a speed of the object to be transported, an acceleration of the object to be transported, a movement amount of the object to be transported, a start position of movement of the object to be transported, an ambient environment of the printer, a value of a current flowing through the motor, a type of a print medium onto which printing is to be performed by the printer, and an accumulated movement amount of the object to be transported; and a controller configured to control the motor to perform printing by using the control parameter obtained based on the machine-learned model.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: November 2, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Mamoru Ukita, Tetsuo Tatsuda, Yuichi Shikagawa, Haruhisa Kurane, Shigenori Katayama, Kazunari Tsukada
  • Patent number: 11148413
    Abstract: A printer includes: a carriage which moves with a print head mounted thereon, the print head being configured to eject ink; a camera attached to the carriage and configured to capture an image printed on a print medium by the print head; a movement mechanism configured to move the carriage along a main scan direction; a transportation mechanism configured to transport the print medium along a sub-scan direction; a processor configured to control printing of the image onto the print medium; and a storage configured to store a correction value of a movement amount of the movement mechanism as a first correction value for a location adjustment of a capture area of the camera and store a correction value of a transportation amount of the transportation mechanism as a second correction value for the location adjustment of the capture area.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 19, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuo Tatsuda
  • Patent number: 10894428
    Abstract: Provided is technology enabling detecting cockling in a print medium without printing a cockling detection pattern on the print medium. An image processing device has: a light source configured to illuminate a print medium; a sensor configured to scan the print medium; and a controller configured to control the light source and sensor. The controller determines if there is cockling in an evaluation area of the print medium based on change in the detection values of the sensor in the evaluation area.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: January 19, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kazunari Tsukada, Tetsuo Tatsuda
  • Publication number: 20200376831
    Abstract: A printer includes: a carriage which moves with a print head mounted thereon, the print head being configured to eject ink; a camera attached to the carriage and configured to capture an image printed on a print medium by the print head; a movement mechanism configured to move the carriage along a main scan direction; a transportation mechanism configured to transport the print medium along a sub-scan direction; a processor configured to control printing of the image onto the print medium; and a storage configured to store a correction value of a movement amount of the movement mechanism as a first correction value for a location adjustment of a capture area of the camera and store a correction value of a transportation amount of the transportation mechanism as a second correction value for the location adjustment of the capture area.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 3, 2020
    Inventor: Tetsuo TATSUDA
  • Publication number: 20200361203
    Abstract: An information processing apparatus includes a storage that stores a machine-learned model, an accepting section, and a processor. In the machine-learned model, according to a data set in which an association is made between discharge failure factor information related to the factor of a discharge failure and printed image information that represents an image formed on a print medium, a prediction condition has been machine-learned for the discharge failure. The accepting section accepts the discharge failure factor information from a printing apparatus. The processor predicts the discharge failure in the print head according to the accepted discharge failure factor information and the machine-learned model.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 19, 2020
    Inventors: Haruhisa KURANE, Tetsuo TATSUDA, Yuichi SHIKAGAWA, Mamoru UKITA, Shigenori KATAYAMA, Kazunari TSUKADA
  • Publication number: 20200282719
    Abstract: A failure time estimation device includes: a memory configured to store a machine-learned model obtained by performing machine learning using teaching data associating printer information including at least one of operation history of a printer, state information indicating a current state, and a print result image indicating a print result with failure time of the printer; and a controller configured to obtain the printer information and estimate the failure time of the printer using the obtained printer information and the machine-learned model.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 10, 2020
    Inventors: Shigenori KATAYAMA, Kazunari TSUKADA, Yuichi SHIKAGAWA, Tetsuo TATSUDA, Mamoru UKITA, Haruhisa KURANE
  • Patent number: 10750048
    Abstract: There is provided a printing apparatus including: an ink jet head that prints on a print medium; a camera that captures an image on the print medium; a carriage that mounts the ink jet head and the camera; and a processor that generates image data based on a captured image obtained by capturing a chart by the camera, the chart being printed on the print medium by the ink jet head, in which the processor generates at least one of image data representing an image of an image range smaller than a capturing range of the camera and image data representing an image of a resolution lower than a resolution of the captured image, for an adjustment item.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 18, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shigenori Katayama, Tetsuo Tatsuda
  • Publication number: 20200249892
    Abstract: A printer includes: a memory configured to store a machine-learned model obtained by machine learning using teaching data associating at least one of reflectance of a print medium, transmittance of the print medium, and image data obtained by capturing an image of a surface of the print medium with a type of the print medium; and a print controller configured to determine a type of a print medium using at least one of reflectance of the print medium, transmittance of the print medium, and image data obtained by capturing an image of a surface of the print medium and the machine-learned model.
    Type: Application
    Filed: January 28, 2020
    Publication date: August 6, 2020
    Inventors: Yuichi SHIKAGAWA, Tetsuo TATSUDA, Haruhisa KURANE, Mamoru UKITA, Shigenori KATAYAMA, Kazunari TSUKADA
  • Publication number: 20200247159
    Abstract: A method for determining a working gap includes a first recording step for ejecting ink from a recording head onto a first recording medium to record a test pattern, a first imaging step for capturing the test pattern recorded on the first recording medium in each of a state where a distance between the recording head and the first recording medium is a first distance, and a state where a distance between the recording head and the first recording medium is a second distance, a function calculating step, a second recording step for recording the test pattern on a second recording medium, a second imaging step for capturing the test pattern recorded on the second recording medium, and a working gap determining step for determining, based on the number of pixels of the captured test pattern and a function, a distance between the recording head and the second recording medium.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 6, 2020
    Inventors: Kazuaki SAKURADA, Tetsuo TATSUDA, Yuichi SHIKAGAWA, Mamoru UKITA
  • Patent number: 10735604
    Abstract: An image quality inspection camera system includes: N (integer of N?2) light sources that emit light on a medium; a camera for photographing the medium; and a control section, in which the control section executes setting processing when an i-th light source (integer of i=1 to N) is lit with a reference driving signal, for setting an image quality inspection time driving signal of the i-th light source, and the setting processing includes calculating an i-th representative luminance value by performing a predetermined representative luminance value calculation processing based on a luminance value of each pixel photographed by the camera when the i-th light source is lit with the reference driving signal, and determining the image quality inspection time driving signal of the i-th light source by adjusting the reference driving signal such that the i-th representative luminance value satisfies a predetermined target luminance value condition.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: August 4, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Tetsuo Tatsuda
  • Publication number: 20200244816
    Abstract: A printer including a motor for transporting an object to be transported, the printer includes: a memory storing a machine-learned model configured to output a control parameter of the motor that brings a transport position of the object to be transported close to a reference based on one or more state variables including at least one of a speed of the object to be transported, an acceleration of the object to be transported, a movement amount of the object to be transported, a start position of movement of the object to be transported, an ambient environment of the printer, a value of a current flowing through the motor, a type of a print medium onto which printing is to be performed by the printer, and an accumulated movement amount of the object to be transported; and a controller configured to control the motor to perform printing by using the control parameter obtained based on the machine-learned model.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Inventors: Mamoru UKITA, Tetsuo TATSUDA, Yuichi SHIKAGAWA, Haruhisa KURANE, Shigenori KATAYAMA, Kazunari TSUKADA
  • Patent number: 10616446
    Abstract: A printing apparatus includes a spectrometer that emits light to detect reflected light and outputs a signal corresponding to an intensity of the light, a white board that reflects the light, a carriage that holds the spectrometer, and a second adjustment mechanism that adjusts a posture of the spectrometer with respect to the carriage.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 7, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuo Tatsuda
  • Publication number: 20190358968
    Abstract: Provided is technology enabling detecting cockling in a print medium without printing a cockling detection pattern on the print medium. An image processing device has: a light source configured to illuminate a print medium; a sensor configured to scan the print medium; and a controller configured to control the light source and sensor. The controller determines if there is cockling in an evaluation area of the print medium based on change in the detection values of the sensor in the evaluation area.
    Type: Application
    Filed: May 24, 2019
    Publication date: November 28, 2019
    Inventors: Kazunari TSUKADA, Tetsuo TATSUDA
  • Patent number: 10419623
    Abstract: A measuring apparatus includes a carriage on which an imaging control section that controls imaging of an object is mounted, a movement control section that moves the carriage relative to the object, an image processing section that acquires image information, a first signal line that connects the imaging control section and the movement control section to each other, and a second signal line that connects the imaging control section and the image processing section to each other. A control signal is transmitted over the first signal line, and a data signal is transmitted over the second signal line.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 17, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Danjun Zhao, Tetsuo Tatsuda
  • Publication number: 20190253568
    Abstract: An image quality inspection camera system includes: N (integer of N?2) light sources that emit light on a medium; a camera for photographing the medium; and a control section, in which the control section executes setting processing when an i-th light source (integer of i=1 to N) is lit with a reference driving signal, for setting an image quality inspection time driving signal of the i-th light source, and the setting processing includes calculating an i-th representative luminance value by performing a predetermined representative luminance value calculation processing based on a luminance value of each pixel photographed by the camera when the i-th light source is lit with the reference driving signal, and determining the image quality inspection time driving signal of the i-th light source by adjusting the reference driving signal such that the i-th representative luminance value satisfies a predetermined target luminance value condition.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 15, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tetsuo TATSUDA