Patents by Inventor Akira Morita

Akira Morita 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: 10147359
    Abstract: A display driver includes a plurality of output terminals that output a plurality of data signals which are output to an electro-optical panel, a plurality of capacitance circuits that are respectively provided between adjacent output terminals of the plurality of output terminals, and a control circuit that sets capacitance values of each capacitance circuit.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: December 4, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Publication number: 20180226047
    Abstract: A display device having a driver that drives load lines in an electro-optical panel through capacitor charge redistribution is provided with a first driving capacitance circuit that drives the load lines, and a second driving capacitance circuit that drives output of a D/A conversion circuit for outputting a voltage corresponding to a driving voltage. Settling time of the output of the D/A conversion circuit is shortened by controlling the second driving capacitance circuit to set the output of the D/A conversion circuit to a desired output voltage.
    Type: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Publication number: 20180218704
    Abstract: A driver and an electronic device include a capacitor driving circuit and a capacitor circuit having a plurality of capacitors provided between a plurality of capacitor driving nodes and a data voltage output terminal. The capacitor driving circuit has a plurality of driving units that output capacitor driving voltages, and in the case where a capacitance of one of the plurality of capacitors is the highest, after a driving unit that drives that capacitor has outputted a capacitor driving voltage, the next driving unit outputs the next capacitor driving voltage.
    Type: Application
    Filed: March 27, 2018
    Publication date: August 2, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Publication number: 20180218862
    Abstract: Operation coil drive device of electromagnetic contactor includes current detector and drive controller. The detector, when switching control is performed on operation coils of the contactor, detects coil current flowing through the coils. The controller controls an on/off time ratio of a semiconductor switching element wherein the on/off time ratio during close circuit control becomes larger than the on/off time ratio during holding control. Power supply voltage is switchingly applied to the coils at the on/off time ratio. The controller includes a determination locus setter and a close circuit state determiner. The setter sets a determination locus that continuously increases along a change locus of detected coil current during close circuit control. The determiner determines a contact point close circuit state by contact of a movable contact to a fixed contact based on deviation between the determination locus by the setter and the detected coil current detected.
    Type: Application
    Filed: March 28, 2018
    Publication date: August 2, 2018
    Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Naoyuki MATSUO, Akira Morita, Takahiro Taguchi, Kosuke Ishibashi
  • Publication number: 20180215141
    Abstract: A recording apparatus includes a transfer body, an application unit configured to apply, onto the transfer body, an ink containing a color material, and a transparent transferability improving liquid for improving transferability of the ink onto a recording medium, a transfer unit configured to transfer an ink image formed on the transfer body onto the recording medium by bringing the transfer body into contact with the recording medium, a detection unit configured to detect a region in which the ink remains on the transfer body after the transfer unit transfers the ink image, and a determination unit configured to determine, based on a detection result of the detection unit, an amount of the transferability improving liquid to be applied to the transfer body by the application unit.
    Type: Application
    Filed: January 29, 2018
    Publication date: August 2, 2018
    Inventors: Akira Morita, Toshimori Miyakoshi, Takao Ogata
  • Publication number: 20180178552
    Abstract: Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 28, 2018
    Inventors: Eisuke Nishitani, Takao Ogata, Akira Morita, Takumi Otani, Toshimori Miyakoshi
  • Patent number: 10002582
    Abstract: In a display device having a driver that drives load lines in an electro-optical panel through capacitor charge redistribution, the driver, which drives load lines at a desired voltage through charge redistribution and furthermore drives these load lines at the desired voltage in a voltage driving circuit, includes an auxiliary voltage setting circuit that sets the voltage of an input terminal of the voltage driving circuit to a voltage corresponding to a driving voltage.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: June 19, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Patent number: 9966031
    Abstract: A display device having a driver that drives load lines in an electro-optical panel through capacitor charge redistribution is provided with a first driving capacitance circuit that drives the load lines, and a second driving capacitance circuit that drives output of a D/A conversion circuit for outputting a voltage corresponding to a driving voltage. Settling time of the output of the D/A conversion circuit is shortened by controlling the second driving capacitance circuit to set the output of the D/A conversion circuit to a desired output voltage.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: May 8, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Patent number: 9959833
    Abstract: A driver and an electronic device include a capacitor driving circuit and a capacitor circuit having a plurality of capacitors provided between a plurality of capacitor driving nodes and a data voltage output terminal. The capacitor driving circuit has a plurality of driving units that output capacitor driving voltages, and in the case where a capacitance of one of the plurality of capacitors is the highest, after a driving unit that drives that capacitor has outputted a capacitor driving voltage, the next driving unit outputs the next capacitor driving voltage.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: May 1, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Patent number: 9925802
    Abstract: Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: March 27, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eisuke Nishitani, Takao Ogata, Akira Morita, Takumi Otani, Toshimori Miyakoshi
  • Publication number: 20180047340
    Abstract: A display driver includes a plurality of output terminals that output a plurality of data signals which are output to an electro-optical panel, a plurality of capacitance circuits that are respectively provided between adjacent output terminals of the plurality of output terminals, and a control circuit that sets capacitance values of each capacitance circuit.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 15, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Publication number: 20180047339
    Abstract: A display driver includes a driving circuit and a control circuit. An electro-optical panel includes plural sampling sections respectively provided for a predetermined number of plural source lines. The control circuit causes a relative time relationship between an ith graded output period of the driving circuit and an ith active period of an enable signal when a sampling operation is enabled for the ith sampling section to differ from a relative time relationship between a jth graded output period of the driving circuit and a jth active period of the enable signal when the sampling operation is enabled for the jth sampling section.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 15, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Publication number: 20180047362
    Abstract: A display driver includes a plurality of output terminals that output a plurality of data signals to an electro-optical panel, and a drive circuit including a plurality of drive units that output the plurality of data signals. Each drive unit includes an amplification circuit and a drive assistance circuit assisting drive performed by the amplification circuit. Drive assistance capability of the drive assistance circuit of an ith drive unit changes on the basis of gradation change information of a drive unit other than the ith drive unit.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 15, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Publication number: 20180032118
    Abstract: A control method executed by a processor included in an extension device, the control method includes executing power supply to another device via a connector using a battery provided in the extension device while power supply to the extension device is not executed; stopping power supply to the other device when it is detected that a terminal device coupled to the extension device and different from the another device is turned on, or that the terminal device turned on is coupled to the extension device; and starting power supply to the extension device while power supply to the other device is stopped.
    Type: Application
    Filed: July 6, 2017
    Publication date: February 1, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya SHIMURA, Akira MORITA, Taketoshi HAYASHI
  • Patent number: 9842527
    Abstract: In a display device having a driver that drives load lines in an electro-optical panel through capacitor charge redistribution, a data voltage is determined by a capacitance ratio during capacitive driving. However, a panel-side capacitance is a capacitance external to a driver IC, and thus it is difficult to set the capacitance ratio exactly. Accordingly, voltage driving, which outputs a data voltage corresponding to tone data to a data voltage output terminal using a voltage driving circuit, is carried out after capacitive driving that drives the electro-optical panel has been started.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 12, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Publication number: 20170337891
    Abstract: In a data line driver, successively input image data are sequentially stored in a first data storage unit and a second data storage unit. A subtracter calculates a difference value between the image data stored in the first data storage unit and the image data stored in the second data storage unit. A timing pulse generator generates a timing pulse based on the calculated difference value, and a charge supply circuit supplies a charge to a gradation voltage output terminal in accordance with the timing pulse. The rising and falling characteristics of gradation voltage when the image data is changed are improved in this way.
    Type: Application
    Filed: July 13, 2017
    Publication date: November 23, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Patent number: 9792872
    Abstract: A driver and an electronic device include a capacitor driving circuit and a capacitor circuit having a plurality of capacitors provided between a plurality of capacitor driving nodes and a data voltage output terminal, and the capacitor driving circuit includes a plurality of driving units that output capacitor driving voltages. In the case where the capacitor that has the highest capacitance among the plurality of capacitors is driven, the driving unit that drives that highest capacitor is a driving unit whose driving capability is variable.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: October 17, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Patent number: 9741311
    Abstract: In a data line driver, successively input image data are sequentially stored in a first data storage unit and a second data storage unit. A subtracter calculates a difference value between the image data stored in the first data storage unit and the image data stored in the second data storage unit. A timing pulse generator generates a timing pulse based on the calculated difference value, and a charge supply circuit supplies a charge to a gradation voltage output terminal in accordance with the timing pulse. The rising and falling characteristics of gradation voltage when the image data is changed are improved in this way.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: August 22, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Akira Morita
  • Publication number: 20170232760
    Abstract: Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 17, 2017
    Inventors: Eisuke Nishitani, Takao Ogata, Akira Morita, Takumi Otani, Toshimori Miyakoshi
  • Patent number: 9718278
    Abstract: An image forming apparatus comprising: a color ink applying unit configured to apply color ink to a print medium; a clear ink applying unit configured to apply a plurality of clear inks to the print medium to cover the applied color ink, each clear ink of the plurality of clear inks having a degree of glossiness that is different from each other; and a determining unit configured to determine an amount ratio of each clear ink to each other clear ink of the plurality of clear inks in accordance with the degree of glossiness indicated by the glossiness data and to determine an amount of each clear ink of the plurality of clear inks such that the determined ratio is satisfied and such that the clear inks cover the applied color ink and print medium at approximately 100% area coverage.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: August 1, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Morita, Keiichirou Takeuchi, Eisuke Nishitani, Takumi Otani, Fumihiro Goto, Koichiro Nakazawa