Patents by Inventor Takeshi Koike

Takeshi Koike 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: 20230151138
    Abstract: Provided are a stereoisomer of an epoxy compound that when contained in a curable composition, can improve the heat resistance and dielectric properties of the cured product of the curable composition, a curable composition containing the stereoisomer, and a cured product of the curable composition. A stereoisomer of an epoxy compound represented by Formula (1) below, the stereoisomer being represented by Formula (2), and a curable composition containing the stereoisomer are used: in which in Formula (1), R1 to R18 are each independently selected from the group consisting of hydrogen, an alkyl group, and an alkoxy group; and in which in Formula (2), R1 to R18 are each the same as in Formula (1).
    Type: Application
    Filed: March 25, 2021
    Publication date: May 18, 2023
    Applicant: ENEOS CORPORATION
    Inventors: Shohei TAKATA, Takeshi KOIKE, Kenta UE
  • Publication number: 20230127561
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 27, 2023
    Inventors: Takeshi Koike, Hideyuki Hara
  • Publication number: 20230023687
    Abstract: The present invention provides an alicyclic epoxy acrylate compound that can have high heat resistance in the form of a cured product when contained in a curable composition, a curable composition, and a cured product. An alicyclic epoxy acrylate compound represented by the following Formula (1) where A denotes an oxygen atom and a curable composition comprising thereof are used: wherein one of R1 and R2 is a (meth)acryloyloxy group, the other of R1 and R2 is a hydrogen atom, R3 to R20 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, and an alkoxy group, and A is an oxygen atom or A is not present, and a carbon atom to which R8 binds and a carbon atom to which R9 binds together form a double bond.
    Type: Application
    Filed: December 1, 2020
    Publication date: January 26, 2023
    Applicant: ENEOS Corporation
    Inventors: Kenta UE, Takeshi KOIKE, Atsushi KAMEYAMA
  • Patent number: 11556204
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: January 17, 2023
    Assignee: Wacom Co., Ltd.
    Inventors: Takeshi Koike, Hideyuki Hara
  • Patent number: 11485717
    Abstract: The invention provides a method for producing an epoxy compound by hydrogen peroxide using an organic compound having a carbon-carbon double bond as a raw material, wherein a by-product is suppressed from being generated and the epoxy compound is produced in a high yield. In particular, the invention provides a method for producing an epoxy compound involving oxidizing a carbon-carbon double bond in an organic compound with hydrogen peroxide in the presence of a catalyst, wherein the catalyst comprises a tungsten compound; a phosphoric acid, a phosphonic acid or salts thereof; and an onium salt having an alkyl sulfate ion represented by formula (I) as an anion: wherein R1 is a linear or branched aliphatic hydrocarbon group having 1 to 18 carbons, which may be substituted with 1 to 3 phenyl groups.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: November 1, 2022
    Assignee: ENEOS CORPORATION
    Inventors: Shohei Takata, Kenta Ue, Takeshi Koike, Atsushi Kameyama
  • Publication number: 20220291797
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Application
    Filed: May 31, 2022
    Publication date: September 15, 2022
    Inventors: Takeshi Koike, Hideyuki Hara
  • Publication number: 20220253163
    Abstract: An active pen includes an integrated circuit that transmits a downlink signal through a first electrode and receives an uplink signal through a second electrode different from the first electrode. The active pen includes a stop filter inserted between the second electrode and the integrated circuit. The integrated circuit, in operation, performs transmission of the downlink signal and the reception of the uplink signal at the same time.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Inventors: Masayuki MIYAMOTO, Takeshi KOIKE, Naoki WATANABE
  • Patent number: 11347346
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: May 31, 2022
    Assignee: Wacom Co., Ltd.
    Inventors: Takeshi Koike, Hideyuki Hara
  • Patent number: 11327581
    Abstract: Active pen includes first and second electrodes provided at different positions, a transmission circuit that uses a booster circuit to cause a change in the first electrode to thereby transmit a downlink signal, a reception circuit that uses the second electrode to detect an uplink signal, and a stop filter that prevents a change in a potential of the first electrode from affecting a potential of the uplink signal detected by the reception circuit.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: May 10, 2022
    Assignee: Wacom Co., Ltd.
    Inventors: Masayuki Miyamoto, Takeshi Koike, Naoki Watanabe
  • PEN
    Publication number: 20220075459
    Abstract: A pen includes: an electrode; a power supply circuit which, in operation, supplies a first voltage; a low voltage integrated circuit (LVIC) coupled to the power supply circuit, wherein the LVIC, in operation, outputs a transmission signal at the first voltage; a high voltage integrated circuit (HVIC) including a level shifter which, in operation, outputs the transmission signal at a second voltage that is higher than the first voltage; an inter-IC wire which, in operation, supplies the transmission signal having the first voltage from the LVIC to the HVIC; an electrode wire which, in operation, supplies the transmission signal having the second voltage from the HVIC to the electrode; and a step-up circuit coupled to the power supply circuit, wherein the HVIC in operation, supplies the second voltage to the level shifter.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Inventor: Takeshi Koike
  • Publication number: 20220057870
    Abstract: Active pen includes first and second electrodes provided at different positions, a transmission circuit that uses a booster circuit to cause a change in the first electrode to thereby transmit a downlink signal, a reception circuit that uses the second electrode to detect an uplink signal, and a stop filter that prevents a change in a potential of the first electrode from affecting a potential of the uplink signal detected by the reception circuit.
    Type: Application
    Filed: April 13, 2021
    Publication date: February 24, 2022
    Inventors: Masayuki MIYAMOTO, Takeshi KOIKE, Naoki WATANABE
  • Publication number: 20220057894
    Abstract: [Object] To allow a pen to properly receive an uplink signal even if there is dullness in a waveform of the uplink signal. [Solution] Provided is an invention of a method of transmitting transmission data from a sensor controller 31 that detects a pen 2 to a pen through a sensor electrode group 30. The pen 2 includes a pen tip electrode arranged near a pen tip, an analog circuit that detects edges of a signal led to the pen tip electrode, and a digital circuit that performs a correlation operation of an output signal of the analog circuit and known patterns to detect transmission data. The sensor controller 31 generates a pulse signal representing the transmission data and transmits the pulse signal, by using a main signal and a sub signal of the pulse signal so as to enhance the edges, thereby transmitting the transmission data through the sensor electrode group.
    Type: Application
    Filed: November 3, 2021
    Publication date: February 24, 2022
    Inventors: Takeshi KOIKE, Haruhiko HISANO
  • Pen
    Patent number: 11181996
    Abstract: A pen includes: an electrode; a power supply circuit which, in operation, supplies a first voltage; a low voltage integrated circuit (LVIC) coupled to the power supply circuit, wherein the LVIC, in operation, outputs a transmission signal at the first voltage; a high voltage integrated circuit (HVIC) including a level shifter which, in operation, outputs the transmission signal at a second voltage that is higher than the first voltage; an inter-IC wire which, in operation, supplies the transmission signal having the first voltage from the LVIC to the HVIC; an electrode wire which, in operation, supplies the transmission signal having the second voltage from the HVIC to the electrode; and a step-up circuit coupled to the power supply circuit, wherein the HVIC in operation, supplies the second voltage to the level shifter.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: November 23, 2021
    Assignee: Wacom Co., Ltd.
    Inventor: Takeshi Koike
  • Publication number: 20210340118
    Abstract: The invention provides a method for producing an epoxy compound by hydrogen peroxide using an organic compound having a carbon-carbon double bond as a raw material, wherein a by-product is suppressed from being generated and the epoxy compound is produced in a high yield. In particular, the invention provides a method for producing an epoxy compound involving oxidizing a carbon-carbon double bond in an organic compound with hydrogen peroxide in the presence of a catalyst, wherein the catalyst comprises a tungsten compound; a phosphoric acid, a phosphonic acid or salts thereof; and an onium salt having an alkyl sulfate ion represented by formula (I) as an anion: wherein R1 is a linear or branched aliphatic hydrocarbon group having 1 to 18 carbons, which may be substituted with 1 to 3 phenyl groups.
    Type: Application
    Filed: August 19, 2019
    Publication date: November 4, 2021
    Applicant: ENEOS CORPORATION
    Inventors: Shohei TAKATA, Kenta UE, Takeshi KOIKE, Atsushi KAMEYAMA
  • Publication number: 20210191592
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Inventors: Takeshi Koike, Hideyuki Hara
  • Patent number: 10942598
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 9, 2021
    Assignee: Wacom Co., Ltd.
    Inventors: Takeshi Koike, Hideyuki Hara
  • Patent number: 10795402
    Abstract: A low-power-consumption, noise-immune analog circuit for a position indicator is provided. The analog circuit provided by the present disclosure is connected to an electrode that receives a control signal by capacitive coupling, and includes an edge detection circuit and a waveform restoration circuit. The edge detection circuit detects rising and falling edges of the control signal received by the electrode. The waveform restoration circuit restores the waveform of the control signal in accordance with the rising and falling edges detected by the edge detection circuit.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: October 6, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Yuji Katsurahira, Takeshi Koike, Hideyuki Hara
  • PEN
    Publication number: 20200225772
    Abstract: A pen includes: an electrode; a power supply circuit which, in operation, supplies a first voltage; a low voltage integrated circuit (LVIC) coupled to the power supply circuit, wherein the LVIC, in operation, outputs a transmission signal at the first voltage; a high voltage integrated circuit (HVIC) including a level shifter which, in operation, outputs the transmission signal at a second voltage that is higher than the first voltage; an inter-IC wire which, in operation, supplies the transmission signal having the first voltage from the LVIC to the HVIC; an electrode wire which, in operation, supplies the transmission signal having the second voltage from the HVIC to the electrode; and a step-up circuit coupled to the power supply circuit, wherein the HVIC in operation, supplies the second voltage to the level shifter.
    Type: Application
    Filed: October 10, 2019
    Publication date: July 16, 2020
    Inventor: Takeshi Koike
  • Publication number: 20190294206
    Abstract: A low-power-consumption, noise-immune analog circuit for a position indicator is provided. The analog circuit provided by the present disclosure is connected to an electrode that receives a control signal by capacitive coupling, and includes an edge detection circuit and a waveform restoration circuit. The edge detection circuit detects rising and falling edges of the control signal received by the electrode. The waveform restoration circuit restores the waveform of the control signal in accordance with the rising and falling edges detected by the edge detection circuit.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 26, 2019
    Inventors: Yuji Katsurahira, Takeshi Koike, Hideyuki Hara
  • Patent number: 10296039
    Abstract: A low-power-consumption, noise-immune analog circuit for a position indicator is provided. The analog circuit provided by the present disclosure is connected to an electrode that receives a control signal by capacitive coupling, and includes an edge detection circuit and a waveform restoration circuit. The edge detection circuit detects rising and falling edges of the control signal received by the electrode. The waveform restoration circuit restores the waveform of the control signal in accordance with the rising and falling edges detected by the edge detection circuit.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: May 21, 2019
    Assignee: Wacom Co., Ltd.
    Inventors: Yuji Katsurahira, Takeshi Koike, Hideyuki Hara