Patents by Inventor Yoshio Nomura

Yoshio Nomura 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).

  • Publication number: 20210286453
    Abstract: A pointer position detection method includes detecting one or more candidate touch positions by detecting one or more changes in capacitances in a touch sensor, detecting one or more candidate pen positions based on a level of a downlink signal in each of a plurality of sensor electrodes, and determining a pen position from the one or more candidate pen positions, in which each of the one or more candidate pen positions having a corresponding candidate touch position that has not been detected is not determined as the pen position.
    Type: Application
    Filed: January 27, 2021
    Publication date: September 16, 2021
    Inventors: Yoshio Nomura, Thilo Naoki Hornung
  • Publication number: 20210232239
    Abstract: A stylus capable of bidirectionally communicating with a sensor controller includes a receiver that receives an uplink signal sent by the sensor controller, a controller that determines whether a signal having a predetermined waveform is to be continuously sent over a second time period or to be continuously sent over a first time period longer than the second time period, on the basis of the uplink signal, and a transmitter that continuously sends the signal having the predetermined waveform over the first time period or the second time period on the basis of the result of determination by the controller. As a result, the sensor controller can detect a burst signal from the stylus over a wide range in a sensor touch surface, to thereby reduce the possibility that the sensor controller may fail to detect the burst signal.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Hideyuki Hara, Yoshio Nomura
  • Publication number: 20210223875
    Abstract: Disclosed herein is a sensor system that detects a stylus on at least one panel surface having an effective region. The sensor system includes a memory device including computer-executable instructions, and a processor. The processor, when loaded with the computer-executable instructions, performs: and obtaining a position of the stylus and a pen pressure value indicating a pressure applied to a pen tip of the stylus; outputting the position and the pen pressure value to a host processor. In response to the position being outside the effective region, the processor performs processing to conceal from the host processor occurrence of at least one of a pen-down indicating the stylus contacting the panel surface and a pen-up indicating the stylus being removed from the panel surface.
    Type: Application
    Filed: December 7, 2020
    Publication date: July 22, 2021
    Inventors: Yoshio NOMURA, Yuhi HATANO
  • Publication number: 20210216189
    Abstract: A touch detection method is performed by a controller of a touch sensor of a capacitive type including sensor electrodes. The touch detection method includes acquiring detection values at crossing positions of the sensor electrodes, acquiring capacitance values for the crossing positions, calculating difference values for the crossing positions, each of the detection values being obtained by subtracting the moving average for one of the crossing positions from one of the difference values for the one of the crossing positions, acquiring a maximum value among the detection values at the crossing positions, determining a first threshold value by subtracting a subtraction value, which is a fixed value or a value that decreases as the maximum value increases, from the maximum value, and deriving a position of the indicator based on the detection values at the crossing positions with reference to the first threshold value.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Inventors: Yoshio Nomura, Kazuhiro Miyoshi, Sadao Yamamoto
  • Publication number: 20210157419
    Abstract: An interface device includes an on-panel pad and a sensor controller. The interface device is used to perform an input to an electronic device in response to an operation by a user on a capacitive touch panel display of the electronic device. The on-panel pad causes sensor electrodes included in the touch panel display to generate a two-dimensional pattern of capacitance while the on-panel pad is on the touch panel display. When the two-dimensional pattern generated while the on-panel pad is on the touch panel display has been detected, the sensor controller generates or outputs data including operation information in response to a change in capacitance in a region that is associated with the two-dimensional pattern and that receives an operation of the on-panel pad, the operation information indicating an operation state of the on-panel pad.
    Type: Application
    Filed: February 3, 2021
    Publication date: May 27, 2021
    Inventors: Thilo Naoki Hornung, Jui Min Liu, Yoshio Nomura, Kazuhiro Miyoshi, Shigeyuki Sano
  • Patent number: 10990224
    Abstract: A touch detection method is performed by a controller of a touch sensor of a capacitive type including sensor electrodes. The touch detection method includes acquiring detection values at crossing positions of the sensor electrodes, each detection value corresponding to a capacitance between an indicator and the touch sensor at one of the crossing positions, acquiring a maximum value among the detection values at the crossing positions, determining a first threshold value by subtracting a subtraction value, which is a fixed value or a value that decreases as the maximum value increases, from the maximum value, and deriving a position of the indicator based on the detection values at the crossing positions with reference to the first threshold value.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: April 27, 2021
    Assignee: Wacom Co., Ltd.
    Inventors: Yoshio Nomura, Kazuhiro Miyoshi, Sadao Yamamoto
  • Patent number: 10976839
    Abstract: A stylus capable of bidirectionally communicating with a sensor controller includes a receiver that receives an uplink signal sent by the sensor controller, a controller that determines whether a signal having a predetermined waveform is to be continuously sent over a second time period or to be continuously sent over a first time period longer than the second time period, on the basis of the uplink signal, and a transmitter that continuously sends the signal having the predetermined waveform over the first time period or the second time period on the basis of the result of determination by the controller. As a result, the sensor controller can detect a burst signal from the stylus over a wide range in a sensor touch surface, to thereby reduce the possibility that the sensor controller may fail to detect the burst signal.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: April 13, 2021
    Assignee: Wacom Co., Ltd.
    Inventors: Hideyuki Hara, Yoshio Nomura
  • Publication number: 20210072876
    Abstract: A touch controller includes a processor and a memory coupled to the processor. The memory stores instructions that, when executed by the processor, cause the touch controller to: operate in an uplink power saving mode in which an uplink signal is transmitted with reduced power in response to reception of a suspend order from a host computer, and operate in a normal mode in which the uplink signal is transmitted with normal power in response to detection of a predetermined trigger during operation in the uplink power saving mode.
    Type: Application
    Filed: August 18, 2020
    Publication date: March 11, 2021
    Inventor: Yoshio Nomura
  • Publication number: 20210064208
    Abstract: A method performed by a device (e.g., touch controller) includes deriving a pen position, and transmitting a report indicating the derived pen position to a host computer. The report includes a first area storing position data indicating the derived position and a second area storing non-position data different from the position data. The method includes securing a buffer area for retaining a plurality of the reports in a memory, deriving the pen position at each determined scanning time, and generating a report including the position data indicating the derived position. The method includes storing the report in the buffer area and, in response to obtaining the non-position data, writing the non-position data in the second area of each of one or more of the reports stored in the buffer area. The method includes transmitting the plurality of the reports stored in the buffer area to the host computer.
    Type: Application
    Filed: July 30, 2020
    Publication date: March 4, 2021
    Inventors: Sadao YAMAMOTO, Yoshio NOMURA
  • Publication number: 20200333939
    Abstract: A pen state detection circuit that is connected to a touch sensor of a capacitance type and adapted to detect a state of an electronic pen in accordance with an output signal from the touch sensor. The touch sensor includes sensor electrodes disposed in a planar manner, and the electronic pen includes a first electrode and a second electrode. The pen state detection circuit includes a processor configured to sequentially and repeatedly: acquire first and second coordinate values in a sensor coordinate system, the coordinate system being defined on a detection surface of the touch sensor, the first coordinate values indicating a projected position of the first electrode, the second coordinate values indicating a projected position of the second electrode; calculate an inclination value indicative of an inclination of the electronic pen from the acquired first and second coordinate values in accordance with calculation rules; and output the inclination value.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 22, 2020
    Inventor: Yoshio Nomura
  • Publication number: 20200081577
    Abstract: A pointer position detection method performed by a sensor controller connected to a sensor pattern includes: detecting a pen signal transmitted via a pen electrode provided at a distal end of an active pen, detecting a position of the active pen based on a level of the pen signal detected; detecting one or more candidate touch positions of a passive pointer that does not transmit a signal by detecting one or more changes of one or more capacitances of the sensor pattern, and outputting, as the position of the passive pointer, the one or more candidate touch positions remaining after excluding the position of the active pen from the one or more candidate touch positions.
    Type: Application
    Filed: November 14, 2019
    Publication date: March 12, 2020
    Inventors: Yoshio NOMURA, Yasuo ODA
  • Publication number: 20190171304
    Abstract: A stylus capable of bidirectionally communicating with a sensor controller includes a receiver that receives an uplink signal sent by the sensor controller, a controller that determines whether a signal having a predetermined waveform is to be continuously sent over a second time period or to be continuously sent over a first time period longer than the second time period, on the basis of the uplink signal, and a transmitter that continuously sends the signal having the predetermined waveform over the first time period or the second time period on the basis of the result of determination by the controller. As a result, the sensor controller can detect a burst signal from the stylus over a wide range in a sensor touch surface, to thereby reduce the possibility that the sensor controller may fail to detect the burst signal.
    Type: Application
    Filed: February 4, 2019
    Publication date: June 6, 2019
    Inventors: Hideyuki Hara, Yoshio Nomura
  • Patent number: 10198093
    Abstract: A stylus capable of bidirectionally communicating with a sensor controller includes a receiver that receives an uplink signal sent by the sensor controller, a controller that determines whether a signal having a predetermined waveform is to be continuously sent over a second time period or to be continuously sent over a first time period longer than the second time period, on the basis of the uplink signal, and a transmitter that continuously sends the signal having the predetermined waveform over the first time period or the second time period on the basis of the result of determination by the controller. As a result, the sensor controller can detect a burst signal from the stylus over a wide range in a sensor touch surface, to thereby reduce the possibility that the sensor controller may fail to detect the burst signal.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 5, 2019
    Assignee: Wacom Co., Ltd.
    Inventors: Hideyuki Hara, Yoshio Nomura
  • Publication number: 20180181255
    Abstract: A touch detection method is performed by a controller of a touch sensor of a capacitive type including sensor electrodes. The touch detection method includes acquiring detection values at crossing positions of the sensor electrodes, each detection value corresponding to a capacitance between an indicator and the touch sensor at one of the crossing positions, acquiring a maximum value among the detection values at the crossing positions, determining a first threshold value by subtracting a subtraction value, which is a fixed value or a value that decreases as the maximum value increases, from the maximum value, and deriving a position of the indicator based on the detection values at the crossing positions with reference to the first threshold value.
    Type: Application
    Filed: February 21, 2018
    Publication date: June 28, 2018
    Inventors: Yoshio Nomura, Kazuhiro Miyoshi, Sadao Yamamoto
  • Publication number: 20180113523
    Abstract: A stylus capable of bidirectionally communicating with a sensor controller includes a receiver that receives an uplink signal sent by the sensor controller, a controller that determines whether a signal having a predetermined waveform is to be continuously sent over a second time period or to be continuously sent over a first time period longer than the second time period, on the basis of the uplink signal, and a transmitter that continuously sends the signal having the predetermined waveform over the first time period or the second time period on the basis of the result of determination by the controller. As a result, the sensor controller can detect a burst signal from the stylus over a wide range in a sensor touch surface, to thereby reduce the possibility that the sensor controller may fail to detect the burst signal.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 26, 2018
    Inventors: Hideyuki Hara, Yoshio Nomura
  • Patent number: 8876542
    Abstract: A connector for connecting an electric-power-transmission power cable to an electric device installed in a vehicle, includes a device socket, a cable plug that is plugged in or unplugged from the device socket, and a detection switch that is electrically turned on or off by a mechanical contact point provided on the device socket and a mechanical contact point provided on the cable plug. The device socket includes a contact terminal of the detection switch. The cable plug includes a plug housing that is electrically grounded by being connected to the device socket and a cover plate that covers an opening of the plug housing. The cover plate includes an insulative plate body and a contact conductor that contacts with the contact terminal of the detection switch. The plate body and the contact conductor are integrally molded.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: November 4, 2014
    Assignee: Komatsu Ltd.
    Inventors: Yoshio Nomura, Tomohiro Yoshino, Kazuo Ohta
  • Publication number: 20140148026
    Abstract: A connector for connecting an electric-power-transmission power cable to an electric device installed in a vehicle, includes a device socket, a cable plug that is plugged in or unplugged from the device socket, and a detection switch that is electrically turned on or off by a mechanical contact point provided on the device socket and a mechanical contact point provided on the cable plug. The device socket includes a contact terminal of the detection switch. The cable plug includes a plug housing that is electrically grounded by being connected to the device socket and a cover plate that covers an opening of the plug housing. The cover plate includes an insulative plate body and a contact conductor that contacts with the contact terminal of the detection switch. The plate body and the contact conductor are integrally molded.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 29, 2014
    Applicant: KOMATSU LTD.
    Inventors: Yoshio Nomura, Tomohiro Yoshino, Kazuo Ohta
  • Patent number: 6594292
    Abstract: A saturable reactor is in a conductive state or has a magnetic switching function depending on the direction of the current flowing through it. Also provided is a power source apparatus for pulse laser utilizing the satiable reactor.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: July 15, 2003
    Assignee: Komatsu Ltd.
    Inventors: Yasufumi Kawasuji, Masao Hagiwara, Yasuhiko Matsuki, Yoshio Nomura
  • Publication number: 20020176460
    Abstract: A saturable reactor is in a conductive state or has a magnetic switching function depending on the direction of the current flowing through it. Also provided is a power source apparatus for pulse laser utilizing the satiable reactor.
    Type: Application
    Filed: July 13, 1999
    Publication date: November 28, 2002
    Inventors: YASUFUMI KAWASUJI, MASAO HAGIWARA, YASUHIKO MATSUKI, YOSHIO NOMURA
  • Patent number: 5275184
    Abstract: A dipping type wafer treatment apparatus includes a treatment solution bath capable of forming a uniform rising flow of a treatment solution inside from an inlet to an outlet, a treatment solution supplying unit for supplying a treatment solution at a constant velocity to the inlet of the treatment solution bath to form a uniform rising flow of the treatment solution inside the treatment solution bath and a device for dipping and retrieving the wafer into and out of the uniform flow of the treatment solution. The treatment solution is supplied from the inlet in the treatment solution bath and drown off through an outlet of the treatment solution bath. Accordingly, the treatment solution can be rapidly substituted, and the wafers to no experience contact with air during replacement of the treatment solutions.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: January 4, 1994
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Hisao Nishizawa, Yoshio Nomura, Hiroyuki Araki