Patents by Inventor Jun Kadowaki

Jun Kadowaki 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: 11755144
    Abstract: A sensor system includes first sensor electrode groups and a first integrated circuit, and second sensor electrode groups and a second integrated circuit. The first integrated circuit and the second integrated circuit are controlled such that a first uplink signal, which is transmitted from the first integrated circuit via the first sensor electrode groups, and a second uplink signal, which is transmitted from the second integrated circuit via the second sensor electrode groups, are not transmitted at the same time.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: September 12, 2023
    Assignee: Wacom Co., Ltd.
    Inventors: Haruhiko Hisano, Sadao Yamamoto, Jun Kadowaki
  • Patent number: 11755160
    Abstract: Electronic equipment includes a touch sensor including a plurality of electrodes arranged in a plane shape and separated from each other in an array direction, a differential amplifier that amplifies a difference between a positive-side signal and a negative-side signal selectively output from the plurality of electrodes and that outputs the difference, a position detection unit that detects a touch position in a sensor area that is formed by the touch sensor, based on an output signal from the differential amplifier, and a conductive part that is a part made of a conductive material or contains a conductive material and that is arranged to partially overlap the sensor area in plan view. The conductive part is arranged such that an outermost end point thereof in the array direction is positioned on one of the plurality of electrodes.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: September 12, 2023
    Assignee: Wacom Co., Ltd.
    Inventor: Jun Kadowaki
  • Publication number: 20230273689
    Abstract: A sensor is provided for detecting a pen signal transmitted from a pen. The sensor includes a touch sensor, flexible printed circuit (FPC) connector terminals, and a detection pattern. The touch sensor has linear electrodes, which form a position detection area and are configured to respectively detect the pen signal. The FPC connector terminals are connected to the linear electrodes, respectively, via routing traces arranged outside the position detection area. The detection pattern is arranged in a region outside the position detection area, near the FPC connector terminals, and is configured to detect the pen signal.
    Type: Application
    Filed: May 4, 2023
    Publication date: August 31, 2023
    Inventors: Jun KADOWAKI, Yutaka KAMIOKA
  • Patent number: 11740733
    Abstract: A position detection device includes a first sensor electrode and a second sensor electrode adjacent to the first sensor electrode, first and second connection wires connected to the first and second sensor electrodes, respectively, a sensor controller connected to the connection wires, and a first extension line; and a second extension line. Some of the plurality of connection wires, including the first connection wire, extend at regular intervals in a first region. The connection wires, including the second connection wire, are arranged to extend at regular intervals in a second region different from the first region. The first extension line extends along the second connection wire in the second region and is electrically connected to the first sensor electrode. The second extension line extends along the first connection wire in the first region and is electrically connected to the second sensor electrode.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: August 29, 2023
    Assignee: Wacom Co., Ltd.
    Inventors: Jun Kadowaki, Ryutaro Nitobe
  • Publication number: 20230259233
    Abstract: Provided is a system for a touch pad used by both a finger and a pen to input operations to a computer. The system includes a sensor electrode group, an integrated circuit, and a memory storing a device driver. The sensor electrode group is configured to be placed over a touch surface that is different from a display surface of the computer. The integrated circuit uses the sensor electrode group to detect a touch position on the touch surface where the finger is in contact and a pen position on the touch surface where the pen is in contact and supplies the detected touch position and pen position to the device driver. The device driver is configured to convert the touch position into relative coordinates when the device driver receives the touch position, and convert the pen position into absolute coordinates when the device driver receives the pen position.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 17, 2023
    Inventor: Jun KADOWAKI
  • Patent number: 11698689
    Abstract: A sensor panel is overlaid on a display apparatus and connected to an integrated circuit that detects a position of an active pen in an active region of the display apparatus. The sensor panel includes first electrodes that extend in a first direction. The sensor panel also includes second electrodes that extend in a second direction. The first electrodes include first and second outer electrodes that are located at the outermost edges of the first electrodes and first inner electrodes disposed between the first and second outer electrodes. A width of at least one of the first and second outer electrodes in the second direction is smaller than a width of each of the first inner electrodes in the second direction.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: July 11, 2023
    Assignee: Wacom Co., Ltd.
    Inventor: Jun Kadowaki
  • Patent number: 11687173
    Abstract: A sensor is provided for detecting a pen signal transmitted from a pen. The sensor includes a touch sensor, flexible printed circuit (FPC) connector terminals, and a detection pattern. The touch sensor has linear electrodes, which form a position detection area and are configured to respectively detect the pen signal. The FPC connector terminals are connected to the linear electrodes, respectively, via routing traces arranged outside the position detection area. The detection pattern is arranged in a region outside the position detection area, near the FPC connector terminals, and is configured to detect the pen signal.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: June 27, 2023
    Assignee: Wacom Co., Ltd.
    Inventors: Jun Kadowaki, Yutaka Kamioka
  • Publication number: 20230195266
    Abstract: A cover film used together with a pen sensor including a plurality of sensor electrodes, and a sensor controller which detects a position of an active pen in reference to a distribution of signal levels each corresponding to an amount of electric charge induced in an individual one of the plurality of sensor electrodes by a pen signal transmitted from a pen tip electrode disposed at a tip of the active pen. The cover film includes a conductive resin that covers an effective area formed by the sensor electrodes for detection of the position of the active pen and that includes a substantially uniform resistance component at least within a range of the effective area. The cover film is arranged, without via a cover glass, on an upper surface of a sensor electrode group including the plurality of sensor electrodes.
    Type: Application
    Filed: February 23, 2023
    Publication date: June 22, 2023
    Inventor: Jun KADOWAKI
  • Patent number: 11669200
    Abstract: Provided is a system for a touch pad used by both a finger and a pen to input operations to a computer. The system includes a sensor electrode group, an integrated circuit, and a memory storing a device driver. The sensor electrode group is configured to be placed over a touch surface that is different from a display surface of the computer. The integrated circuit uses the sensor electrode group to detect a touch position on the touch surface where the finger is in contact and a pen position on the touch surface where the pen is in contact and supplies the detected touch position and pen position to the device driver. The device driver is configured to convert the touch position into relative coordinates when the device driver receives the touch position, and convert the pen position into absolute coordinates when the device driver receives the pen position.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: June 6, 2023
    Assignee: Wacom Co., Ltd.
    Inventor: Jun Kadowaki
  • Publication number: 20230068170
    Abstract: A position detection device includes sensor electrodes including a first sensor electrode and a second sensor electrode that are adjacent to each other, connection wires connected to the respective sensor electrodes and including first and second connection wires connected to the first and second sensor electrodes, respectively, a sensor controller connected to the connection wires, and a first extension line; and a second extension line. Some of the plurality of connection wires, including the first connection wire, extend at regular intervals in a first region. The connection wires, including the second connection wire, are arranged to extend at regular intervals in a second region different from the first region. The first extension line extends along the second connection wire in the second region and is electrically connected to the first sensor electrode. The second extension line extends along the first connection wire in the first region and is electrically connected to the second sensor electrode.
    Type: Application
    Filed: June 22, 2022
    Publication date: March 2, 2023
    Inventors: Jun KADOWAKI, Ryutaro NITOBE
  • Publication number: 20230030832
    Abstract: A sensor panel includes a detection area and is coupleable to an integrated circuit (IC) for detecting a position of an active stylus in the detection area. The sensor panel includes a plurality of first electrodes which are elongated and extending along a first direction in the detection area, wherein the plurality of first electrodes are arrayed along a second direction that is transverse to the first direction; a plurality of first routing traces associated respectively with the first electrodes and connected respectively to the first electrodes; and a plurality of first terminals associated respectively with the first routing traces and connecting the first routing traces to the IC. The first routing traces include extension lines formed in an area farther distanced from the first terminals along the second direction, than locations of junctions between the first routing traces and the first electrodes relative to the first terminals.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 2, 2023
    Inventor: Jun KADOWAKI
  • Publication number: 20220404922
    Abstract: A touch pad is configured to receive input operations using objects including a finger and a stylus. The touch pad includes a touch screen including a touch detection surface that serves as a button and as a position detection region for detecting positions of the objects. The touch pad includes an integrated circuit having an object detection function of detecting the positions of the objects on the touch detection surface and a button function of detecting a press state of the button based on a force applied to the touch detection surface. The touch pad includes a button function stop unit configured to cause, according to an operation state of the stylus or according to a setting related to an input operation of the stylus, the integrated circuit to stop outputting a button press state value indicative of the press state detected by the button function.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 22, 2022
    Inventor: Jun KADOWAKI
  • Publication number: 20220391068
    Abstract: A touch sensor includes a display panel that includes a plurality of pixel electrodes each provided in a corresponding one of a plurality of pixels, and a common electrode shared by the plurality of pixels. The touch sensor also includes a touch panel that detects a position of at least either a finger or a pen. The display panel and the touch panel are superimposed on each other in a vertical direction. The common electrode includes a conductor-area-reduction portion that reduces an area of the common electrode.
    Type: Application
    Filed: August 22, 2022
    Publication date: December 8, 2022
    Inventor: Jun KADOWAKI
  • Patent number: 11507223
    Abstract: A sensor panel is provided which is coupleable to a sensor controller for detecting the position of an active stylus in a detection area of the sensor panel. The detection area includes a plurality of linear electrodes extending in an x direction and arrayed in a y direction transverse to the x direction, and a plurality of routing traces associated respectively with the linear electrodes and connected respectively to the linear electrodes. The sensor panel includes a plurality of FPC (flexible printed circuit) connection terminals associated respectively with the routing traces and connecting the routing traces to the sensor controller. The routing traces have respective routing lines connected at an angle, which is not zero degrees, respectively to trunk lines that are directly connected to the corresponding linear electrodes. The trunk lines of the linear routing traces have substantially equal lengths.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: November 22, 2022
    Assignee: Wacom Co., Ltd.
    Inventor: Jun Kadowaki
  • Patent number: 11460934
    Abstract: A touch pad is configured to receive input operations using objects including a finger and a stylus. The touch pad includes a touch screen including a touch detection surface that serves as a button and as a position detection region for detecting positions of the objects. The touch pad includes an integrated circuit having an object detection function of detecting the positions of the objects on the touch detection surface and a button function of detecting a press state of the button based on a force applied to the touch detection surface. The touch pad includes a button function stop unit configured to cause, according to an operation state of the stylus or according to a setting related to an input operation of the stylus, the integrated circuit to stop outputting a button press state value indicative of the press state detected by the button function.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: October 4, 2022
    Assignee: Wacom Co., Ltd.
    Inventor: Jun Kadowaki
  • Publication number: 20220276730
    Abstract: A sensor panel is overlaid on a display apparatus and connected to an integrated circuit that detects a position of an active pen in an active region of the display apparatus. The sensor panel includes first electrodes that extend in a first direction. The sensor panel also includes second electrodes that extend in a second direction. The first electrodes include first and second outer electrodes that are located at the outermost edges of the first electrodes and first inner electrodes disposed between the first and second outer electrodes. A width of at least one of the first and second outer electrodes in the second direction is smaller than a width of each of the first inner electrodes in the second direction.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Inventor: Jun Kadowaki
  • Patent number: 11360581
    Abstract: A sensor panel is overlaid on a display apparatus and connected to an integrated circuit that detects a position of an active pen in an active region of the display apparatus. The sensor panel includes first electrodes that extend in a first direction. The sensor panel also includes second electrodes that extend in a second direction. The first electrodes include first and second outer electrodes that are located at the outermost edges of the first electrodes and first inner electrodes disposed between the first and second outer electrodes. A width of at least one of the first and second outer electrodes in the second direction is smaller than a width of each of the first inner electrodes in the second direction.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: June 14, 2022
    Assignee: Wacom Co., Ltd.
    Inventor: Jun Kadowaki
  • Publication number: 20220164086
    Abstract: A method performed by a sensor controller detects coordinates of a pen including one or more electrodes that transmit a signal. The method includes a first scanning step of performing an operation of detecting a signal transmitted from an electrode in contact with a panel surface at each of three or more first reference positions at which signal levels can be detected, from the signal detected in a sensor electrode group included in a first range, among plural juxtaposed reference positions. The method includes a second scanning step of performing an operation of detecting a signal transmitted from an electrode not in contact with the panel surface at each of three or more second reference positions at which signal levels can be detected, from the signal detected in a sensor electrode group included in a second range greater than the first range, among the plural reference positions.
    Type: Application
    Filed: October 21, 2021
    Publication date: May 26, 2022
    Inventors: Jun KADOWAKI, Chengliang HSIEH, Chung-Nien LANG
  • Publication number: 20220147166
    Abstract: A sensor is provided for detecting a pen signal transmitted from a pen. The sensor includes a touch sensor, flexible printed circuit (FPC) connector terminals, and a detection pattern. The touch sensor has linear electrodes, which form a position detection area and are configured to respectively detect the pen signal. The FPC connector terminals are connected to the linear electrodes, respectively, via routing traces arranged outside the position detection area. The detection pattern is arranged in a region outside the position detection area, near the FPC connector terminals, and is configured to detect the pen signal.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Jun KADOWAKI, Yutaka KAMIOKA
  • Publication number: 20220137778
    Abstract: A sensor system includes first sensor electrode groups and a first integrated circuit, and second sensor electrode groups and a second integrated circuit. The first integrated circuit and the second integrated circuit are controlled such that a first uplink signal, which is transmitted from the first integrated circuit via the first sensor electrode groups, and a second uplink signal, which is transmitted from the second integrated circuit via the second sensor electrode groups, are not transmitted at the same time.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Inventors: Haruhiko HISANO, Sadao YAMAMOTO, Jun KADOWAKI