Patents by Inventor Haruo Hayashi

Haruo Hayashi 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: 11606051
    Abstract: A motor driving circuit includes a stepping motor driving circuit that controls driving of a stepping motor, a DC motor driving circuit that controls driving of a DC motor, and a control circuit that controls the stepping motor driving circuit and the DC motor driving circuit. The control circuit, upon accepting a driving instruction for driving the stepping motor in the middle of the DC motor driving circuit performing driving of the DC motor, stops driving of the DC motor by the DC motor driving circuit, and starts driving of the stepping motor by the stepping motor driving circuit.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: March 14, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Motoaki Nishimura, Haruo Hayashi, Makoto Katase, Yusuke Sano
  • Patent number: 11476756
    Abstract: A circuit device includes a pulse signal output circuit and a driving circuit. The pulse signal output circuit, when a detection voltage has decreased below a reference voltage, changes a pulse signal to an active level at which a switching element is turned on. The pulse signal output circuit, after the detection voltage has decreased below the reference voltage, performs monitoring as to whether or not the detection voltage has exceeded the reference voltage, and upon detecting that the detection voltage has exceeded the reference voltage, changes the pulse signal to an inactive level at which the switching element is turned off. The driving circuit outputs a driving signal based on the pulse signal to the switching element.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: October 18, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Makoto Katase, Haruo Hayashi, Motoaki Nishimura, Yusuke Sano, Yoshifumi Sakamoto
  • Patent number: 11404979
    Abstract: A motor driving circuit includes a first motor driving circuit that controls driving of a first motor is disposed, a second motor driving circuit that controls driving of a second motor is disposed, and a constant current generation circuit that generates a constant current is disposed, and the constant current generation circuit is disposed at a position deviating from between the first motor driving circuit and the second motor driving circuit.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: August 2, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Haruo Hayashi, Motoaki Nishimura, Makoto Katase, Yusuke Sano
  • Publication number: 20210135607
    Abstract: A motor driving circuit includes a first motor driving circuit that controls driving of a first motor is disposed, a second motor driving circuit that controls driving of a second motor is disposed, and a constant current generation circuit that generates a constant current is disposed, and the constant current generation circuit is disposed at a position deviating from between the first motor driving circuit and the second motor driving circuit.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventors: Haruo Hayashi, Motoaki Nishimura, Makoto Katase, Yusuke Sano
  • Publication number: 20210135610
    Abstract: A motor driving circuit includes a stepping motor driving circuit that controls driving of a stepping motor, a DC motor driving circuit that controls driving of a DC motor, and a control circuit that controls the stepping motor driving circuit and the DC motor driving circuit. The control circuit, upon accepting a driving instruction for driving the stepping motor in the middle of the DC motor driving circuit performing driving of the DC motor, stops driving of the DC motor by the DC motor driving circuit, and starts driving of the stepping motor by the stepping motor driving circuit.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventors: Motoaki Nishimura, Haruo Hayashi, Makoto Katase, Yusuke Sano
  • Publication number: 20210126530
    Abstract: A circuit device includes a pulse signal output circuit and a driving circuit. The pulse signal output circuit, when a detection voltage has decreased below a reference voltage, changes a pulse signal to an active level at which a switching element is turned on. The pulse signal output circuit, after the detection voltage has decreased below the reference voltage, performs monitoring as to whether or not the detection voltage has exceeded the reference voltage, and upon detecting that the detection voltage has exceeded the reference voltage, changes the pulse signal to an inactive level at which the switching element is turned off. The driving circuit outputs a driving signal based on the pulse signal to the switching element.
    Type: Application
    Filed: October 27, 2020
    Publication date: April 29, 2021
    Inventors: Makoto Katase, Haruo Hayashi, Motoaki Nishimura, Yusuke Sano, Yoshifumi Sakamoto
  • Patent number: 10599186
    Abstract: An electronic device is provided. The electronic device includes a housing. The housing includes at least one open surface, a display disposed in an interior space of the housing. At least a portion of the display is exposed through the opened surface of the housing, and at least one electronic component is disposed between the display and the housing. The housing includes at least one slit passing through at least a partial area of a first side surface, a lower surface, and a second surface facing the first side surface with a specific width and extending from the first side surface to the second side surface via a first periphery of the lower surface and a second periphery facing the first periphery.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: March 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Sin Cho, Sun Woong Ham, Haruo Hayashi
  • Patent number: 10510284
    Abstract: A display driver includes a drive circuit that receives input of a first reference voltage to an nth reference voltage (where n is an integer of two or more), and outputs a drive voltage that is based on a grayscale voltage obtained by voltage division of an ith reference voltage and an (i+1)th reference voltage (where i is an integer of n?1 or less), and a control circuit that utilizes frame rate control on first display data corresponding to a grayscale voltage obtained by voltage division of the first reference voltage and a second reference voltage to generate second display data, and supplies the second display data to the drive circuit.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: December 17, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Haruo Hayashi, Akihiko Ito
  • Patent number: 10506156
    Abstract: According to various examples of the present invention, an electronic device having a first camera module comprises: a housing; a lens assembly arranged in the inside of the housing and including at least one wide-angle lens; an image sensor arranged at the lower part of the lens assembly and converting a semi-spherical optical image, which is transferred from the lens assembly, into an electric signal; a base arranged at the lower part of the housing and having the image sensor or a printed circuit unit mounted therein; and a combination unit arranged at one surface of the base so as to induce coupling with an external device, and including at least one magnet. According to various examples of the present invention, a user can conveniently acquire a desired image when photographing an object, by designing the electronic device having the camera of which an angle of view can be readily switched to 180° or 360°.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: December 10, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joo-Hyung Kim, Woo-Jung Moon, Haruo Hayashi, Jong-Yun Jeoung
  • Publication number: 20180352159
    Abstract: According to various examples of the present invention, an electronic device having a first camera module comprises: a housing; a lens assembly arranged in the inside of the housing and including at least one wide-angle lens; an image sensor arranged at the lower part of the lens assembly and converting a semi-spherical optical image, which is transferred from the lens assembly, into an electric signal; a base arranged at the lower part of the housing and having the image sensor or a printed circuit unit mounted therein; and a combination unit arranged at one surface of the base so as to induce coupling with an external device, and including at least one magnet. According to various examples of the present invention, a user can conveniently acquire a desired image when photographing an object, by designing the electronic device having the camera of which an angle of view can be readily switched to 180° or 360°.
    Type: Application
    Filed: December 26, 2016
    Publication date: December 6, 2018
    Inventors: Joo-Hyung KIM, Woo-Jung MOON, Haruo HAYASHI, Jong-Yun JEOUNG
  • Publication number: 20180075796
    Abstract: A display driver includes a drive circuit that receives input of a first reference voltage to an nth reference voltage (where n is an integer of two or more), and outputs a drive voltage that is based on a grayscale voltage obtained by voltage division of an ith reference voltage and an (i+1)th reference voltage (where i is an integer of n?1 or less), and a control circuit that utilizes frame rate control on first display data corresponding to a grayscale voltage obtained by voltage division of the first reference voltage and a second reference voltage to generate second display data, and supplies the second display data to the drive circuit.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Haruo HAYASHI, Akihiko ITO
  • Publication number: 20180032107
    Abstract: An electronic device is provided. The electronic device includes a housing. The housing includes at least one open surface, a display disposed in an interior space of the housing. At least a portion of the display is exposed through the opened surface of the housing, and at least one electronic component is disposed between the display and the housing. The housing includes at least one slit passing through at least a partial area of a first side surface, a lower surface, and a second surface facing the first side surface with a specific width and extending from the first side surface to the second side surface via a first periphery of the lower surface and a second periphery facing the first periphery.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Inventors: Chang Sin CHO, Sun Woong HAM, Haruo HAYASHI
  • Patent number: 9621035
    Abstract: Provided are a control circuit for a switching regulator that can switch off a transistor that drives an inductor at high speed, an integrated circuit device, the switching regulator, an electronic device, and the like. A control circuit (100) includes a signal generation circuit (10) and an output circuit (20). The signal generation circuit (10) generates a control signal (SG) for a switching regulator. Upon receiving the control signal (SG), the output circuit (20) outputs a drive signal (GD) to a gate of an N-type transistor (30) that drives an inductor (40). The output circuit (20) outputs a voltage level lower than a source voltage of the N-type transistor (30) as an off-voltage level of the drive signal (GD) for switching off the N-type transistor (30).
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 11, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Motoaki Nishimura, Haruo Hayashi
  • Patent number: D719505
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: December 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Geun Kim, Haruo Hayashi
  • Patent number: D722953
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: February 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Haruo Hayashi
  • Patent number: D728652
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Haruo Hayashi
  • Patent number: D728659
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Haruo Hayashi
  • Patent number: D766353
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: September 13, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Haruo Hayashi
  • Patent number: D813864
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunwoong Ham, Haruo Hayashi
  • Patent number: D828429
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: September 11, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woojung Moon, Joohyung Kim, Woohyeok Jeong, Haruo Hayashi