Patents by Inventor Yousuke Nakamura
Yousuke Nakamura 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: 20240411402Abstract: A display device with a touch panel starts a first touch detection process within an extension period, and ends the first touch detection process before a normal drive period starts. The display device with a touch panel performs a process of outputting first report data when a length of the extension period is equal to or longer than a predetermined length. The display device with a touch panel performs, after the normal drive period starts, a second touch detection process, a writing process, and a process of outputting second report data.Type: ApplicationFiled: May 9, 2024Publication date: December 12, 2024Inventors: Daisuke Suehiro, Daiji Kitagawa, Jin Miyazawa, Yousuke Nakamura
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Patent number: 12026334Abstract: A touch panel display driver includes a source driver circuit, a touch detection circuit, a selector circuit, a register a plurality of source terminals, a plurality of touch detection terminals, and a plurality of selection terminals. The selector circuit electrically connects the source driver circuit to each of the source terminals, electrically connects the touch detection circuit to each of the touch detection terminals, and electrically connects each of the selection terminals to the source driver circuit or the touch detection circuit.Type: GrantFiled: April 14, 2023Date of Patent: July 2, 2024Assignee: Sharp Display Technology CorporationInventors: Daisuke Suehiro, Daiji Kitagawa, Noriyuki Tanaka, Tatsuhiko Suyama, Jin Miyazawa, Yousuke Nakamura
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Publication number: 20240211066Abstract: A display device with a touch panel includes a touch panel including a pixel electrode, and a control unit executing a write process of writing a data signal on the pixel electrode and a touch detection process by the touch panel. The control unit determines an executable number of times of the touch detection process based on the length of the pause period, alternately executes the touch detection process and the write process in the display period, and executes the touch detection process a number of times equal to or less than the determined executable number of times in the pause period.Type: ApplicationFiled: November 20, 2023Publication date: June 27, 2024Inventors: Daiji KITAGAWA, Jin Miyazawa, Yousuke Nakamura, Daisuke Suehiro
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Patent number: 12020647Abstract: A display device is provided with: a display portion including a plurality of scanning lines, a plurality of data lines, and a plurality of pixel circuits; a scanning line drive circuit; and a data line drive circuit. The level of a data voltage applied to the data line decreases when a frame frequency is switched higher, and increases when the frame frequency is switched lower. This can prevent a display flicker when the frame frequency is switched. The level of the data voltage may change when the frame frequency is switched, and may return to its initial level over a plurality of frame periods. The timing of the control signal used to drive the display portion may change in accordance with the frame frequency to cause the length of the charging period of the pixel circuit to change in accordance with the frame frequency.Type: GrantFiled: January 13, 2021Date of Patent: June 25, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Kazuo Nakamura, Noriyuki Tanaka, Masaaki Nishio, Yousuke Nakamura, Tatsuhiko Suyama
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Patent number: 11935473Abstract: In a display device that changes the number of light emissions per frame period, a display control circuit outputs a control signal specifying an emission period included in a frame period to an emission control line driver circuit. The emission control line driver circuit adds sequential delays to the control signal and thereby generates signals to be applied to the emission control lines. When leading and trailing frame periods have the same proportion of emission periods but include different numbers of emission periods, the leading and trailing frame periods are intervened by a transition frame period having a different proportion of emission periods from the leading frame period. This configuration prevents flickering caused by the changing of the number of light emissions per frame period.Type: GrantFiled: January 31, 2020Date of Patent: March 19, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Yousuke Nakamura, Masaaki Nishio, Noriyuki Tanaka, Hongbing Weng
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Patent number: 11928283Abstract: A display device includes: a display panel including a sensor unit configured to detect a touch operation; a first control unit configured to supply a first signal to the display panel; and a second control unit configured to calculate touch information related to the touch operation and to supply the touch information to the first control unit. The first control unit includes: a signal generator configured to generate the first signal based on an image signal supplied from an external image signal supply source; and an overdrive circuit configured to perform a process of increasing an amplitude of the first signal generated by the signal generator. The overdrive circuit is actuated based on the touch information from the second control unit. The first control unit, in response to the actuation of the overdrive circuit, supplies the first signal having the amplitude increased by the overdrive circuit to the display panel.Type: GrantFiled: January 10, 2023Date of Patent: March 12, 2024Assignee: Sharp Display Technology CorporationInventors: Jin Miyazawa, Noriyuki Tanaka, Daiji Kitagawa, Tatsuhiko Suyama, Yousuke Nakamura, Daisuke Suehiro
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Publication number: 20240078975Abstract: A display device is provided with: a display portion including a plurality of scanning lines, a plurality of data lines, and a plurality of pixel circuits; a scanning line drive circuit; and a data line drive circuit. The level of a data voltage applied to the data line decreases when a frame frequency is switched higher, and increases when the frame frequency is switched lower. This can prevent a display flicker when the frame frequency is switched. The level of the data voltage may change when the frame frequency is switched, and may return to its initial level over a plurality of frame periods. The timing of the control signal used to drive the display portion may change in accordance with the frame frequency to cause the length of the charging period of the pixel circuit to change in accordance with the frame frequency.Type: ApplicationFiled: January 13, 2021Publication date: March 7, 2024Inventors: Kazuo NAKAMURA, Noriyuki TANAKA, Masaaki NISHIO, Yousuke NAKAMURA, Tatsuhiko SUYAMA
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Publication number: 20240033681Abstract: A carbon dioxide recovery system includes a main controller and unit controllers. The main controller provides guidelines to the unit controllers for a plurality of recovery units. The guideline serves as a guideline for controlling operations of components including an electrochemical cell, a channel on/off valve, a pump, and a channel switching valve. Each one of the unit controllers determines a control content for each one of components based on the guideline.Type: ApplicationFiled: July 26, 2023Publication date: February 1, 2024Inventors: Hiroki AOSHIMA, Yousuke NAKAMURA, Hiroyuki TAKIKAWA
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Publication number: 20240017211Abstract: A carbon dioxide recovery system capable of effectively suppressing deterioration of the carbon dioxide adsorption performance of an electrochemical cell is provided. The carbon dioxide recovery system includes a control unit which is configured to perform as an information acquisition unit. The information acquisition unit acquires information about a substance contained in the atmosphere that may adhere to an electrochemical cell. Then, the control device is configured to switch between execution and non-execution of at least carbon dioxide recovery control based on the information acquired by the information acquisition unit.Type: ApplicationFiled: July 6, 2023Publication date: January 18, 2024Inventors: HIROKI AOSHIMA, YOUSUKE NAKAMURA, HIROYUKI TAKIKAWA
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Publication number: 20240001294Abstract: In an adsorption mode, a control device applies an adsorption potential between a working electrode and a counter electrode only during an adsorption time. The adsorption time corresponds to a target carbon dioxide adsorption amount, which an adsorbent can adsorb. In a desorption mode, the control device applies a desorption potential only during a recovery time corresponding to a recovery amount. At this time, the control device acquires an optimum desorption time which is a desorption time associated with a carbon dioxide desorption amount equivalent to a target carbon dioxide recovery amount RVCO2 in a desorption amount change map data. Then, the control device applies the desorption potential only during the optimum desorption time in the desorption mode.Type: ApplicationFiled: June 26, 2023Publication date: January 4, 2024Inventors: HIROKI AOSHIMA, YOUSUKE NAKAMURA, HIROYUKI TAKIKAWA
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Publication number: 20230351960Abstract: In a display device that changes the number of light emissions per frame period, a display control circuit outputs a control signal specifying an emission period included in a frame period to an emission control line driver circuit. The emission control line driver circuit adds sequential delays to the control signal and thereby generates signals to be applied to the emission control lines. When leading and trailing frame periods have the same proportion of emission periods but include different numbers of emission periods, the leading and trailing frame periods are intervened by a transition frame period having a different proportion of emission periods from the leading frame period. This configuration prevents flickering caused by the changing of the number of light emissions per frame period.Type: ApplicationFiled: January 31, 2020Publication date: November 2, 2023Inventors: Yousuke NAKAMURA, Masaaki NISHIO, Noriyuki TANAKA, Hongbing WENG
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Publication number: 20230338894Abstract: In a carbon dioxide recovery system. an electrochemical cell of a recovery device includes a working electrode having an adsorbent capable of adsorbing carbon dioxide, and a counter electrode paired with the working electrode. A sensor detects a recovery amount that is an amount of carbon dioxide recovered in the recovery device and sent to a carbon dioxide recovery tank. A controller applies a first potential between the electrodes only for an adsorption time period in an adsorption mode such that the adsorbent adsorbs carbon dioxide. The adsorption time period corresponds to a target adsorption amount that is an amount of carbon dioxide that can be adsorbed by the adsorbent. The controller applies a second potential between the electrodes in a recovery mode such that the adsorbed carbon dioxide is desorbed. The controller acquires the target adsorption amount as a correlation value correlated with the detected recovery amount.Type: ApplicationFiled: April 5, 2023Publication date: October 26, 2023Inventors: HIROKI AOSHIMA, YOUSUKE NAKAMURA, HIROYUKI TAKIKAWA
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Publication number: 20230338893Abstract: In a carbon dioxide recovery system. an electrochemical cell of a recovery device includes a working electrode having an adsorbent capable of adsorbing carbon dioxide, and a counter electrode. A sensor detects a recovery amount of carbon dioxide recovered and sent to a carbon dioxide recovery tank. A controller applies a first potential between the electrodes only for a time period in an adsorption mode. The time period corresponds to a target amount of carbon dioxide that can be adsorbed by the adsorbent. A storage unit stores multiple adsorption-amount change data indicating association between the target amount and the time period. The controller acquires the target amount correlated with the detected recovery amount, acquires the time period by using the acquired target amount, and selects data from among the multiple adsorption-amount change data according to the recovery amount as in-use data for acquisition of the time period.Type: ApplicationFiled: April 5, 2023Publication date: October 26, 2023Inventors: HIROKI AOSHIMA, YOUSUKE NAKAMURA, HIROYUKI TAKIKAWA
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Publication number: 20230333679Abstract: A touch panel display driver includes a source driver circuit, a touch detection circuit, a selector circuit, a register a plurality of source terminals, a plurality of touch detection terminals, and a plurality of selection terminals. The selector circuit electrically connects the source driver circuit to each of the source terminals, electrically connects the touch detection circuit to each of the touch detection terminals, and electrically connects each of the selection terminals to the source driver circuit or the touch detection circuit.Type: ApplicationFiled: April 14, 2023Publication date: October 19, 2023Applicant: Sharp Display Technology CorporationInventors: Daisuke SUEHIRO, Daiji KITAGAWA, Noriyuki TANAKA, Tatsuhiko SUYAMA, Jin MIYAZAWA, Yousuke NAKAMURA
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Publication number: 20230320037Abstract: To obtain a heatsink having a plurality of components firmly joined together. The heatsink includes a tabular base part having an electronic component contact surface on one side in the thickness direction thereof to make contact with an electronic component, a tabular column portion arranged in parallel on the other side of the base part across a heat dissipation space, and the column portions provided between the base part and the heat dissipating part. The heat dissipating part, the column portions, and the base part are provided with insertion holes that extend therethrough, and the heat dissipating part, the column portions, and the base part are fixed together by an inner member inserted into the insertion holes.Type: ApplicationFiled: November 25, 2020Publication date: October 5, 2023Applicant: KAGA, INC.Inventors: Masaaki NOZAKI, Yuji TANAKA, Shu MATSUURA, Yousuke NAKAMURA
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Publication number: 20230273697Abstract: A display device includes: a display panel including a sensor unit configured to detect a touch operation; a first control unit configured to supply a first signal to the display panel; and a second control unit configured to calculate touch information related to the touch operation and to supply the touch information to the first control unit. The first control unit includes: a signal generator configured to generate the first signal based on an image signal supplied from an external image signal supply source; and an overdrive circuit configured to perform a process of increasing an amplitude of the first signal generated by the signal generator. The overdrive circuit is actuated based on the touch information from the second control unit. The first control unit, in response to the actuation of the overdrive circuit, supplies the first signal having the amplitude increased by the overdrive circuit to the display panel.Type: ApplicationFiled: January 10, 2023Publication date: August 31, 2023Inventors: Jin MIYAZAWA, Noriyuki TANAKA, Daiji KITAGAWA, Tatsuhiko SUYAMA, Yousuke NAKAMURA, Daisuke SUEHIRO
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Patent number: 11675460Abstract: A control circuit of an in-cell touch panel device associates a touch position P1 and a touch position P2 with each other when a refresh rate is F1 and a touch-to-touch distance d1 between the successive touch positions P1 and P2 is equal to or less than a determination distance D1. The control circuit associates a touch position P3 and a touch position P4 with each other when a touch-to-touch distance d2 between the touch position P3 detected last in a period in which the refresh rate is F2 lower than F1 and the touch position P4 detected first since a period in which the refresh rate is F1 starts is equal to or less than a determination distance D2 greater than the determination distance D1.Type: GrantFiled: September 20, 2022Date of Patent: June 13, 2023Assignee: Sharp Display Technology CorporationInventors: Daiji Kitagawa, Jin Miyazawa, Yousuke Nakamura, Daisuke Suehiro
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Patent number: 11651094Abstract: A communication control device configured to access an information processing apparatus in which data is stored. The device and method acquires an operational condition of an information processing apparatus, and notifies the information processing apparatus of a security command for causing the information processing apparatus to execute a security process on the data in an event that an operational condition is activated and, in an event that the operational condition is a standby mode, a hibernate mode, or a shutdown mode, notifies the information processing apparatus of an activation command for activating the information processing apparatus, and notifies of a security command for causing the information processing apparatus to execute a security process on the data.Type: GrantFiled: December 29, 2015Date of Patent: May 16, 2023Assignee: FUJITSU LIMITEDInventors: Kazuaki Nimura, Yousuke Nakamura, Kouichi Yasaki, Fumio Honda
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Publication number: 20230104048Abstract: A control circuit of an in-cell touch panel device associates a touch position P1 and a touch position P2 with each other when a refresh rate is F1 and a touch-to-touch distance d1 between the successive touch positions P1 and P2 is equal to or less than a determination distance D1. The control circuit associates a touch position P3 and a touch position P4 with each other when a touch-to-touch distance d2 between the touch position P3 detected last in a period in which the refresh rate is F2 lower than F1 and the touch position P4 detected first since a period in which the refresh rate is F1 starts is equal to or less than a determination distance D2 greater than the determination distance D1.Type: ApplicationFiled: September 20, 2022Publication date: April 6, 2023Inventors: Daiji KITAGAWA, Jin MIYAZAWA, Yousuke NAKAMURA, Daisuke SUEHIRO
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Patent number: 11604537Abstract: A display device includes a touch panel, a panel control unit, and a storage unit configured to store an image signal. The panel control unit provides control to perform a touch detection operation and a write operation in an alternating manner in an image input period and to perform at least the touch detection operation at regular intervals in a suspension period. When an image input period starts, the panel control unit provides control to perform the write operation after an ongoing or subsequent touch detection operation finishes.Type: GrantFiled: March 9, 2022Date of Patent: March 14, 2023Assignee: SHARP DISPLAY TECHNOLOGY CORPORATIONInventors: Yousuke Nakamura, Daiji Kitagawa, Jin Miyazawa, Daisuke Suehiro