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).
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Publication number: 20250251830Abstract: 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: ApplicationFiled: April 24, 2025Publication date: August 7, 2025Inventor: Jun KADOWAKI
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Publication number: 20250251819Abstract: Provided is a sensor including sensor electrodes disposed from a first end to a second end in a first direction in a touch surface, terminals that are each disposed for a corresponding one of sets of sensor electrodes among the sensor electrodes and connected to a sensor controller, and routing lines that connect each of the sensor electrodes to one of the terminals corresponding to one of the sensor electrodes. An interconnect resistance per unit length of each of the sensor electrodes becomes lower continuously or in a stepwise manner, according to an interconnect distance from a portion connecting with one of the routing lines corresponding to one of the sensor electrodes, and a difference in the interconnect resistances between any two sensor electrodes among the sensor electrodes is smaller than a case in which an interconnect resistance per unit length in each of the routing lines is constant.Type: ApplicationFiled: January 30, 2025Publication date: August 7, 2025Inventors: Jun KADOWAKI, Ryutaro NITOBE
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Patent number: 12353652Abstract: Disclosed herein is a coordinate output device that outputs absolute coordinates indicating a position in a predetermined region or relative coordinates, according to a position indicated by a position indicator. The coordinate output device continues to output the relative coordinates while the absolute coordinates are not acquired, and starts output of the absolute coordinates and stops the output of the relative coordinates in response to acquisition of the absolute coordinates.Type: GrantFiled: October 24, 2023Date of Patent: July 8, 2025Assignee: Wacom Co., Ltd.Inventors: Gen Igarashi, Jun Kadowaki, Masayuki Miyamoto, Hideki Fujimaki, Tsukasa Nomi
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Publication number: 20250189574Abstract: Provided is an evaluation method for an electronic pen by an evaluation system including a planar sensor and a movement mechanism, the evaluation method including disposing the planar sensor such that a direction of a third axis orthogonal to each of a first axis and a second axis in a three-dimensional machine coordinate system defined for controlling driving of the movement mechanism is orthogonal to a sensor coordinate plane formed by a first axis and a second axis of a two-dimensional sensor coordinate system defined in the planar sensor, performing angle adjustment by causing an orientation of a machine coordinate plane to correspond with an orientation of the sensor coordinate plane by rotating the planar sensor disposed, with a direction normal to the planar sensor being an axis of rotation, and performing position adjustment by causing a sensor reference point to correspond with a machine reference point.Type: ApplicationFiled: February 14, 2025Publication date: June 12, 2025Inventor: Jun KADOWAKI
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Publication number: 20250181187Abstract: 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: ApplicationFiled: February 3, 2025Publication date: June 5, 2025Inventors: Haruhiko HISANO, Sadao YAMAMOTO, Jun KADOWAKI
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Patent number: 12314512Abstract: 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: GrantFiled: May 28, 2024Date of Patent: May 27, 2025Assignee: Wacom Co., Ltd.Inventor: Jun Kadowaki
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Patent number: 12299241Abstract: Provided is a wire mesh sensor including one or more wire meshes provided in a planar shape. Each of the one or more wire meshes includes a plurality of effective elements forming a band-shaped electrode extending in one direction by a combination of a plurality of line elements or a plurality of point elements, and a plurality of dummy elements isolated from the effective elements. At least the effective elements have a pattern shape that is asymmetric with respect to a first center line along the direction in which the band-shaped electrode extends, as viewed in a plan view. A line symmetry degree of the pattern shape with respect to the first center line is greater than or equal to 0.8.Type: GrantFiled: July 12, 2023Date of Patent: May 13, 2025Assignee: Wacom Co., Ltd.Inventor: Jun Kadowaki
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Publication number: 20250085793Abstract: 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: ApplicationFiled: November 22, 2024Publication date: March 13, 2025Inventor: Jun Kadowaki
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Patent number: 12242691Abstract: 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: GrantFiled: August 1, 2023Date of Patent: March 4, 2025Assignee: Wacom Co., Ltd.Inventors: Haruhiko Hisano, Sadao Yamamoto, Jun Kadowaki
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Publication number: 20250068278Abstract: A position detection device includes first and second sensor electrodes 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: ApplicationFiled: November 13, 2024Publication date: February 27, 2025Inventors: Jun KADOWAKI, Ryutaro NITOBE
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Publication number: 20250068271Abstract: Provided is an active pen used with electronic equipment including a touch sensor that is of a capacitive system and that includes sensor electrodes, the active pen including a receiving circuit that receives an uplink signal from the electronic equipment, a transmitting circuit that transmits a downlink signal to the electronic equipment, an attendant function circuit that performs an attendant function different from reception of the uplink signal and transmission of the downlink signal, and a controller that controls operation of the receiving circuit, the transmitting circuit, or the attendant function circuit according to a plurality of kinds of operation modes including a normal mode and a low power consumption mode.Type: ApplicationFiled: August 20, 2024Publication date: February 27, 2025Inventors: Yoshio NOMURA, Masafumi UTSUGI, Jun KADOWAKI, Ryutaro NITOBE, Susumu YAMADA, Haruhiko HISANO, Hideyuki HARA, Naoki WATANABE
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Publication number: 20250060850Abstract: Provided is a pen sensor for use in detecting an active pen. The pen sensor includes a first layer including a group of first sensor electrodes and a group of first dummy patterns, and a second layer including a group of second sensor electrodes and a group of second dummy patterns. The first dummy patterns and the second dummy patterns are overlaid with each other when viewed from above the pen sensor.Type: ApplicationFiled: May 14, 2024Publication date: February 20, 2025Inventor: Jun KADOWAKI
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Publication number: 20250036221Abstract: 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: ApplicationFiled: October 16, 2024Publication date: January 30, 2025Inventor: Jun KADOWAKI
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Publication number: 20250021175Abstract: 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: ApplicationFiled: September 27, 2024Publication date: January 16, 2025Inventors: Jun KADOWAKI, Yutaka KAMIOKA
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Publication number: 20240427466Abstract: 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: ApplicationFiled: September 10, 2024Publication date: December 26, 2024Inventor: Jun KADOWAKI
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Patent number: 12175027Abstract: 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: GrantFiled: June 12, 2023Date of Patent: December 24, 2024Assignee: Wacom Co., Ltd.Inventor: Jun Kadowaki
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Patent number: 12169605Abstract: A position detection device includes first and second sensor electrodes 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: GrantFiled: July 13, 2023Date of Patent: December 17, 2024Assignee: Wacom Co., Ltd.Inventors: Jun Kadowaki, Ryutaro Nitobe
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Publication number: 20240402817Abstract: A system includes a pen and a pen position detection apparatus. The pen includes a signal transmitter that transmits a pen signal, a signal receiver that receives a vibration control signal, and a haptic element that is activated in response to the vibration control signal. The pen position detection apparatus is configured to detect the pen signal to derive a pen position, detect occurrence of an event that a drawing line indicated by a series of derived pen positions crosses or comes into contact with a predetermined line segment, and transmit the vibration control signal to activate the haptic element in response to the detection of the occurrence of the event.Type: ApplicationFiled: August 9, 2024Publication date: December 5, 2024Inventors: Jun KADOWAKI, Kizuku ISHIMARU, Mu-Tzu CHEN, Noboru YAMAGUCHI
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Patent number: 12147617Abstract: 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: GrantFiled: September 7, 2023Date of Patent: November 19, 2024Assignee: Wacom Co., Ltd.Inventor: Jun Kadowaki
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Publication number: 20240361868Abstract: 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: ApplicationFiled: July 9, 2024Publication date: October 31, 2024Inventor: Jun KADOWAKI