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: 11011130
    Abstract: A circuit device includes a driving circuit and an output capacitor. The output capacitor includes a first MIM capacitor element including a first metal layer, a second metal layer, and a first insulating layer, and a second MIM capacitor element including a third metal layer, a fourth metal layer, and a second insulating layer. The first metal layer and the fourth metal layer are electrically coupled to the capacitor drive node, and the second metal layer and the third metal layer are electrically coupled to the voltage output node. The second metal layer is positioned at the third metal layer side with respect to the first metal layer, and the third metal layer is positioned at the second metal layer side with respect to the fourth metal layer.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 18, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Patent number: 10957273
    Abstract: A display driver includes a processing circuit configured to output display data, a D/A conversion circuit configured to D/A-convert the display data output from the processing circuit, a data voltage output terminal, and an amplifier circuit configured to output a data voltage to the data voltage output terminal on the basis of a D/A conversion result output from the D/A conversion circuit. In a pre-charge period, the processing circuit outputs first pre-charge data as pre-charge data for a D/A conversion circuit DACi, and outputs second pre-charge data different from the first pre-charge data as pre-charge data for a D/A conversion circuit DACj.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: March 23, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akihiro Tomie, Akira Morita
  • Publication number: 20210082332
    Abstract: A circuit device includes a transfer gate and a control circuit. The transfer gate includes a P-type transistor and an N-type transistor. The control circuit sets, as a first value, a transistor size ratio that is a ratio of a size of the P-type transistor to a size of the N-type transistor when a voltage of an input signal to the transfer gate is in a first voltage range at a timing at which the transfer gate is turned off. The control circuit sets the transistor size ratio as a second value greater than the first value when a voltage of the input signal is in a second voltage range lower than that in the first voltage range at a timing at which the transfer gate is turned off.
    Type: Application
    Filed: September 17, 2020
    Publication date: March 18, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Publication number: 20210082363
    Abstract: A circuit device includes a transfer gate, a charge compensation circuit, and a control circuit. The control circuit controls the charge compensation circuit. The charge compensation circuit discharges charge from an output node of the transfer gate when a voltage of an input signal to the transfer gate is in a first voltage range at a timing at which the transfer gate is turned off. The charge compensation circuit injects charge into the output node of the transfer gate when a voltage of the input signal to the transfer gate is in a second voltage range lower than that in the first voltage range at a timing at which the transfer gate is turned off.
    Type: Application
    Filed: September 17, 2020
    Publication date: March 18, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Patent number: 10948939
    Abstract: A display driver includes a driving circuit including an amplifier circuit and configured to cause the amplifier circuit to output a data voltage corresponding to display data, a reference voltage generation circuit configured to generate a reference voltage supplied to a reference current source of the amplifier circuit and output the reference voltage to an output node, and a setting circuit configured to set a voltage of the output node of the reference voltage generation circuit. The setting circuit includes a capacitor having one end connected with the output node, and a control circuit configured to control a voltage of another end of the capacitor based on an enable signal to change a voltage of the output node from a first voltage at which a reference current flowing in the reference current source is off, toward the reference voltage.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: March 16, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Patent number: 10937382
    Abstract: A display driver includes a D/A converter circuit for outputting a gradation voltage, and an amplifier circuit that is input with a gradation voltage at an input node. The amplifier circuit includes an operational amplifier, resistance provided between the input node and a node, resistance provided between a node and an output node of the operational amplifier, and an adjustment resistance circuit. The adjustment resistance circuit adjusts a first adjustment resistance value, that is a resistance value between a node and an inverting input node of the operational amplifier, and a second adjustment resistance value, that is a resistance value between the node and the inverting input node.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: March 2, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Publication number: 20210015208
    Abstract: A sole structure includes: a base having a plate-like shape, and disposed near a ground; a plurality of pillars protruding upward from the base, and spaced apart from each other, the pillars being elastically deformable; and an upper plate portion disposed above the base. The pillars are disposed between the base and the upper plate portion with lower end portions of the pillars fixed to the base and with upper end portions of the pillars fixed to the upper plate portion.
    Type: Application
    Filed: January 22, 2019
    Publication date: January 21, 2021
    Inventors: Kentaro Yahata, Keisuke Kushida, Yohei Yoshida, Akira Morita
  • Patent number: 10887134
    Abstract: A circuit device includes a first terminal, a second terminal, a receiving circuit configured to receive the differential signals via the first terminal and the second terminal, a first signal line connecting a first input terminal of the receiving circuit and the first terminal, a second signal line connecting a second input terminal of the receiving circuit and the second terminal, a first capacitor circuit having one end connected to the first signal line, a second capacitor circuit having one end connected to the second signal line, and a detection circuit configured to detect a duty cycle of an output signal that is output from the receiving circuit.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 5, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshihito Miyashita, Akira Morita
  • Patent number: 10878767
    Abstract: A display driver includes a D/A converter circuit configured to convert display data into a gradation voltage, an amplifier circuit including an input node to which the gradation voltage is input and configured to output data voltage, and a supply circuit configured to supply an auxiliary current or an auxiliary electrical charge to the input node of the amplifier circuit. In an auxiliary period, an output of the D/A converter circuit is in a high impedance state, and the supply circuit supplies the auxiliary current or the auxiliary electrical charge to the input node of the amplifier circuit. In a non-auxiliary period after the auxiliary period, the D/A converter circuit outputs the gradation voltage to the input node of the amplifier circuit.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 29, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Patent number: 10839767
    Abstract: A display driver includes an operational amplifier, a D/A conversion circuit, a resistance circuit, and a resistance element. The D/A conversion circuit includes first and second variable resistance circuits including one end to which first and second voltages are input and another end connected to an inverting input node. The resistance circuit is provided between the inverting input node and an output node. The resistor is provided between the output node and the inverting input node. A resistance value of the first variable resistance circuit is set based on upper bit data of display data. A resistance value of the second variable resistance circuit is set based on lower bit data of the display data.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: November 17, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akira Morita, Takeshi Nomura
  • Publication number: 20200305545
    Abstract: The midsole structure for an athletic shoe includes a midsole body made of foamed resin, and a sheet composite extending at least from the ball of the foot portion to the toe portion in the midsole body and comprising a plurality of foamed rubber sheets that are overlapped and shifted in the longitudinal direction. The sheet composite comprises a single sheet at the toe portion and a plurality of sheets at the ball of the foot portion.
    Type: Application
    Filed: March 17, 2020
    Publication date: October 1, 2020
    Inventors: Kentaro YAHATA, Yohei YOSHIDA, Akira MORITA
  • Patent number: 10713992
    Abstract: A display driver includes a first D/A converter circuit configured to output a gradation voltage corresponding to upper-bit data of display data, a second D/A converter circuit configured to output a reference voltage corresponding to lower-bit data of the display data, and an inverting amplifier circuit configured to amplify the gradation voltage with reference to the reference voltage, and to drive a data line of an electro-optical panel. The second D/A converter circuit includes a first resistor provided between a node of a high potential-side power source and an output node of the reference voltage, a second resistor provided between the output node and a first node, a reference voltage ladder resistance circuit provided between the first node and a node of a low potential-side power source, and a switch circuit.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akira Morita
  • Publication number: 20200184917
    Abstract: A display driver includes an operational amplifier, a D/A conversion circuit, a resistance circuit, and a resistance element. The D/A conversion circuit includes first and second variable resistance circuits including one end to which first and second voltages are input and another end connected to an inverting input node. The resistance circuit is provided between the inverting input node and an output node. The resistor is provided between the output node and the inverting input node. A resistance value of the first variable resistance circuit is set based on upper bit data of display data. A resistance value of the second variable resistance circuit is set based on lower bit data of the display data.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 11, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akira MORITA, Takeshi NOMURA
  • Publication number: 20200184916
    Abstract: A display driver includes a D/A converter circuit for outputting a gradation voltage, and an amplifier circuit that is input with a gradation voltage at an input node. The amplifier circuit includes an operational amplifier, resistance provided between the input node and a node, resistance provided between a node and an output node of the operational amplifier, and an adjustment resistance circuit. The adjustment resistance circuit adjusts a first adjustment resistance value, that is a resistance value between a node and an inverting input node of the operational amplifier, and a second adjustment resistance value, that is a resistance value between the node and the inverting input node.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 11, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akira MORITA
  • Publication number: 20200169437
    Abstract: A circuit device includes a first terminal, a second terminal, a receiving circuit configured to receive the differential signals via the first terminal and the second terminal, a first signal line connecting a first input terminal of the receiving circuit and the first terminal, a second signal line connecting a second input terminal of the receiving circuit and the second terminal, a first capacitor circuit having one end connected to the first signal line, a second capacitor circuit having one end connected to the second signal line, and a detection circuit configured to detect a duty cycle of an output signal that is output from the receiving circuit.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 28, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshihito MIYASHITA, Akira MORITA
  • Publication number: 20200160807
    Abstract: A display driver includes a processing circuit configured to output display data, a D/A conversion circuit configured to D/A-convert the display data output from the processing circuit, a data voltage output terminal, and an amplifier circuit configured to output a data voltage to the data voltage output terminal on the basis of a D/A conversion result output from the D/A conversion circuit. In a pre-charge period, the processing circuit outputs first pre-charge data as pre-charge data for a D/A conversion circuit DACi, and outputs second pre-charge data different from the first pre-charge data as pre-charge data for a D/A conversion circuit DACj.
    Type: Application
    Filed: November 20, 2019
    Publication date: May 21, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akihiro TOMIE, Akira MORITA
  • Patent number: 10647598
    Abstract: An antimicrobial and algicidal agent for cooling water system contains an antimicrobial agent and an isothiazolone-based compound that effectively kill and remove the algae grown in the cooling water system.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: May 12, 2020
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventor: Akira Morita
  • Publication number: 20200093223
    Abstract: A sole structure includes a plate placed between an outsole and a midsole and disposed at the position corresponding to at least the forefoot and the midfoot of a wearer's foot, and a cushioning body disposed so as to face the sole of the wearer's foot at the position corresponding to the midfoot and the hindfoot of the wearer's foot and capable of absorbing a vertical impact on the upper surface of the cushioning body. The cushioning body and the plate body overlap each other in the vertical direction at the position corresponding to the midfoot of the wearer's foot.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 26, 2020
    Inventors: Kazunori Iuchi, Yo Kajiwara, Kouji Ito, Akira Morita, Shingo Sudo
  • Publication number: 20200093218
    Abstract: A sole structure includes an upper midsole made of an elastic material and a lower midsole made of an elastic material and bonded from below to the upper midsole. The upper midsole has first protrusions protruding toward the lower midsole, and the tip ends of the first protrusions are in contact with the lower midsole such that the tip ends of the first protrusions can move with respect to the lower midsole.
    Type: Application
    Filed: September 20, 2019
    Publication date: March 26, 2020
    Inventors: Yo Kajiwara, Kazunori Iuchi, Kouji Ito, Akira Morita, Shingo Sudo
  • Publication number: 20200093219
    Abstract: A sole structure includes a plate placed between an outsole and a midsole. The plate includes a plate body and first openings. The plate body is made of a material less stretchable than the material of the outsole and is in the form of a thin plate. Each of the first openings extends through a part of the plate body in the vertical direction. The first openings are disposed at a position corresponding to the forefoot and the midfoot on the medial side of a wearer's foot and is covered by the outsole from below.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 26, 2020
    Inventors: Kazunori Iuchi, Yo Kajiwara, Kouji Ito, Akira Morita, Shingo Sudo