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).
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Publication number: 20240111386Abstract: An electronic pen is provided which indicates a position on a plane-shaped sensor through communication with an electronic device including the plane-shaped sensor. The electronic pen includes a reception circuit configured to receive a signal transmitted from the electronic device, a pen pressure sensor configured to output a detection signal correlated with an amount of pen pressure exerted on a pen tip of the electronic pen, and a value conversion circuit configured to convert, according to a conversion rule, a detection value indicated by the detection signal output from the pen pressure sensor, into a conversion value indicating a magnitude of the amount of pen pressure. The value conversion circuit adjusts, according to a strength of the signal received by the reception circuit, rising sensitivity at which the amount of pen pressure transitions from zero to non-zero on a conversion characteristic curve identified by the conversion rule.Type: ApplicationFiled: July 28, 2023Publication date: April 4, 2024Inventor: Takeshi KOIKE
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Patent number: 11929201Abstract: A surface mount inductor includes a coil including a wound portion and a feeder end portion drawn out from the wound portion, a compact that contains a magnetic powder and that encapsulates the coil, and an external terminal disposed on the compact and connected to the coil. The compact has surfaces including two pressed surfaces, opposing each other in a direction of an axis of the wound portion and formed by being pressed in the direction of the axis, and a non-pressed surface, adjacent to the two surfaces and not pressed. The coil is disposed so that the axis of the wound portion is parallel to a mount surface of the compact. The mount surface is included in the non-pressed surface, the feeder end portion is exposed from the mount surface, and the external terminal is formed on only the non-pressed surface and connected to the feeder end portion.Type: GrantFiled: March 7, 2023Date of Patent: March 12, 2024Assignee: Murata Manufacturing Co., Ltd.Inventors: Yuki Kitashima, Masaki Kitajima, Takeo Ohaga, Takeshi Shimada, Yoshiaki Hirama, Daigo Mizumura, Ryota Watanabe, Masato Koike, Yuusuke Morita
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Patent number: 11913400Abstract: During a predetermined operation state in which the opening degree of a throttle valve is fixed, an air flow meter positioned more on the upstream side than a pressure control valve detects a first intake air amount when the opening degree of the pressure control valve positioned on the upstream side of the throttle valve is set to a predetermined first valve opening degree and a second intake air amount when the opening degree of the pressure control valve is set to a predetermined second valve opening degree smaller than the first valve opening degree. On the basis of the first intake air amount and the second intake air amount, a diagnosis is made regarding whether there is an abnormality in a first pipe, a second pipe, a third pipe and the like which are included in a blow-by gas recirculation system for blow-by gas treatment.Type: GrantFiled: March 2, 2020Date of Patent: February 27, 2024Assignee: NISSAN MOTOR CO., LTD.Inventors: Yusuke Koike, Takeshi Miyamoto, Hitoshi Ishii
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Patent number: 11899861Abstract: 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: GrantFiled: November 15, 2021Date of Patent: February 13, 2024Assignee: Wacom Co., Ltd.Inventor: Takeshi Koike
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Publication number: 20240007126Abstract: A delta-sigma modulation circuit is enabled to be used to detect a pen signal. An integrated circuit according to the present disclosure is a sensor controller that detects pen signals transmitted from an active pen. The integrated circuit includes a delta-sigma modulation circuit including a subtractor that subtracts a feedback signal from a received signal input from a sensor, an integrator that integrates an output signal of the subtractor, a quantizer that quantizes an output signal of the integrator, and a digital analog converter that generates the feedback signal based on an output value of the quantizer. The integrated circuit also has a processor that detects a level of the received signal based on an output value of the delta-sigma modulation circuit, and a gain controller that a level of the feedback signal based on the level of the received signal detected by the processor.Type: ApplicationFiled: August 18, 2023Publication date: January 4, 2024Inventor: Takeshi KOIKE
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Publication number: 20230350523Abstract: A method is provided for transmitting transmission data from a sensor controller that detects a pen to the pen through a sensor electrode group. The pen includes a pen tip electrode arranged near a pen tip, and an analog circuit that detects edges of a signal led to the pen tip electrode. The pen also includes a digital circuit that performs a correlation operation of an output signal of the analog circuit and known patterns to detect the transmission data. The sensor controller is configured to generate a pulse signal representing the transmission data. The sensor controller is configured to transmit 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: ApplicationFiled: May 3, 2023Publication date: November 2, 2023Inventors: Takeshi KOIKE, Haruhiko HISANO
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Publication number: 20230266834Abstract: 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: ApplicationFiled: May 2, 2023Publication date: August 24, 2023Inventors: Masayuki MIYAMOTO, Takeshi KOIKE, Naoki WATANABE
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Publication number: 20230241703Abstract: This learning model generation method is for generating a learning model for learning by taking, as teaching data, image data from a visual sensor and welding information extracted from the image data, wherein: a plurality of welding conditions to be used for generating the learning model correspond to the difference in setting pertaining to at least one item; the image data corresponding to each of the plurality of welding conditions includes at least one of a molten pool, a welding wire, and an arc; the welding information includes at least one of information pertaining to the behavior of the molten pool, information pertaining to the position of the welding wire, and information pertaining to the arc; and the learning model which receives the image data as an input and outputs the welding information is generated.Type: ApplicationFiled: March 29, 2021Publication date: August 3, 2023Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Naohide FURUKAWA, Keito ISHIZAKI, Takeshi KOIKE, Yuji KIMURA, Akira OKAMOTO, Keita OZAKI
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Publication number: 20230195245Abstract: A transmission driver receives an input signal, a first voltage, and a second voltage higher than the first voltage, and transmits a transmission signal according to the input signal, the transmission driver includes an output terminal that outputs the transmission signal and circuitry that is coupled to the output terminal and that operates in a first mode of transmitting the transmission signal with a first voltage range that ranges from the first voltage to the second voltage, and a second mode of transmitting the transmission signal with a second voltage range that ranges from the first voltage to a third voltage higher than the second voltage.Type: ApplicationFiled: December 8, 2022Publication date: June 22, 2023Inventor: Takeshi KOIKE
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Patent number: 11675463Abstract: [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: GrantFiled: November 3, 2021Date of Patent: June 13, 2023Assignee: Wacom Co., Ltd.Inventors: Takeshi Koike, Haruhiko Hisano
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Patent number: 11675447Abstract: 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: GrantFiled: April 26, 2022Date of Patent: June 13, 2023Assignee: Wacom Co., Ltd.Inventors: Masayuki Miyamoto, Takeshi Koike, Naoki Watanabe
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Publication number: 20230151138Abstract: 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: ApplicationFiled: March 25, 2021Publication date: May 18, 2023Applicant: ENEOS CORPORATIONInventors: Shohei TAKATA, Takeshi KOIKE, Kenta UE
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Publication number: 20230127561Abstract: 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: ApplicationFiled: December 19, 2022Publication date: April 27, 2023Inventors: Takeshi Koike, Hideyuki Hara
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Publication number: 20230023687Abstract: 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: ApplicationFiled: December 1, 2020Publication date: January 26, 2023Applicant: ENEOS CorporationInventors: Kenta UE, Takeshi KOIKE, Atsushi KAMEYAMA
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Patent number: 11556204Abstract: 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: GrantFiled: May 31, 2022Date of Patent: January 17, 2023Assignee: Wacom Co., Ltd.Inventors: Takeshi Koike, Hideyuki Hara
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Patent number: 11485717Abstract: 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: GrantFiled: August 19, 2019Date of Patent: November 1, 2022Assignee: ENEOS CORPORATIONInventors: Shohei Takata, Kenta Ue, Takeshi Koike, Atsushi Kameyama
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Publication number: 20220291797Abstract: 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: ApplicationFiled: May 31, 2022Publication date: September 15, 2022Inventors: Takeshi Koike, Hideyuki Hara
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Publication number: 20220253163Abstract: 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: ApplicationFiled: April 26, 2022Publication date: August 11, 2022Inventors: Masayuki MIYAMOTO, Takeshi KOIKE, Naoki WATANABE
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Patent number: 11347346Abstract: 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: GrantFiled: March 8, 2021Date of Patent: May 31, 2022Assignee: Wacom Co., Ltd.Inventors: Takeshi Koike, Hideyuki Hara
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Patent number: 11327581Abstract: 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: GrantFiled: April 13, 2021Date of Patent: May 10, 2022Assignee: Wacom Co., Ltd.Inventors: Masayuki Miyamoto, Takeshi Koike, Naoki Watanabe