Patents by Inventor Kei Kimura
Kei Kimura 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: 20210264853Abstract: A display apparatus includes a pixel array section that has pixels arranged in a row direction and a column direction in a two-dimensional matrix pattern, each of the pixels including a display element; a scanning line provided for each of the pixel rows arranged in the row direction; and a data line provided for each of the pixel columns arranged in the column direction. With the data line in a state of holding a video signal voltage, the voltage of a scanning line different from the scanning line of the pixel targeted for writing is changed so as to vary the voltage of the data line via a capacity between the data line and the scanning line. The scanning line of the pixel targeted for writing is thereafter driven to write the voltage of the data line to the pixel.Type: ApplicationFiled: July 19, 2019Publication date: August 26, 2021Inventor: Kei Kimura
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Publication number: 20210235999Abstract: An electrocardiogram analyzer includes: an electrocardiogram measuring unit configured to measure an electrocardiogram based on an electrocardiographic signal of an electrode attached to a subject; a motion measuring unit configured to measure motion based on motion information of a sensor attached to the subject; and an analyzer configured to analyze occurrence of serious arrhythmia based on the electrocardiogram measured by the electrocardiogram measuring unit and the motion measured by the motion measuring unit.Type: ApplicationFiled: January 20, 2021Publication date: August 5, 2021Inventors: Masafumi NAGASAWA, Kazuhiro SEKIKAWA, Kei KIMURA
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Publication number: 20210217366Abstract: A display element includes a light-emitting unit of a current drive type, and a drive unit that drives the light-emitting unit, in which the drive unit includes a capacitance unit, a drive transistor that causes a current corresponding to a voltage held by the capacitance unit to flow through the light-emitting unit, and a write transistor that writes a signal voltage to the capacitance unit, the drive transistor and the write transistor are formed in a state of being separated by an element isolation region, on a semiconductor substrate, and a capacitance generated in a portion where the drive transistor and the write transistor face each other through the element isolation region functions as at least a part of the capacitance unit.Type: ApplicationFiled: March 19, 2021Publication date: July 15, 2021Inventor: Kei Kimura
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Patent number: 10984729Abstract: A gray-scale voltage generating circuit includes: a ladder resistor circuit including a plurality of resistors connected in series to one another, and configured to output a plurality of gray-scale voltages with different voltage values from ends of the respective resistors; and a constant current source configured to be connected in series to the ladder resistor circuit, in which the constant current source includes a current source transistor configured to be connected in series to the ladder resistor circuit, and a voltage setting section configured to select one voltage from the plurality of voltages and set the selected voltage as a voltage determining a current that is to flow through the current source transistor.Type: GrantFiled: February 27, 2018Date of Patent: April 20, 2021Assignee: SONY CORPORATIONInventors: Kei Kimura, Yusuke Onoyama, Junichi Yamashita
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Patent number: 10971073Abstract: A display element includes a light-emitting unit of a current drive type, and a drive unit that drives the light-emitting unit, in which the drive unit includes a capacitance unit, a drive transistor that causes a current corresponding to a voltage held by the capacitance unit to flow through the light-emitting unit, and a write transistor that writes a signal voltage to the capacitance unit, the drive transistor and the write transistor are formed in a state of being separated by an element isolation region, on a semiconductor substrate, and a capacitance generated in a portion where the drive transistor and the write transistor face each other through the element isolation region functions as at least a part of the capacitance unit.Type: GrantFiled: August 29, 2018Date of Patent: April 6, 2021Assignee: Sony CorporationInventor: Kei Kimura
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Publication number: 20210087368Abstract: The antivibration rubber composition of the present invention contains a styrene-butadiene rubber (A) having a polystyrene-equivalent weight-average molecular weight of 700,000 or more, and a liquid styrene-butadiene rubber (B) having a polystyrene-equivalent weight-average molecular weight of 12,000 or less, wherein the total amount of the vinyl bond content in the rubber (A) and the vinyl bond content in the liquid rubber (B) relative to the total amount of the rubber (A) and the liquid rubber (B) is 25% by mass or more. The antivibration rubber using the composition exhibits ultra-low spring property and high durability.Type: ApplicationFiled: December 11, 2018Publication date: March 25, 2021Applicant: BRIDGESTONE CORPORATIONInventors: Nahoko ITO, Yasuo HORIKAWA, Kei KIMURA, Kazutaka OTSU
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Publication number: 20200323457Abstract: A heartbeat analyzer analyzes heartbeats of a living body to which a pacing device for outputting pacing pulses to cause a heart to beat is placed. The heartbeat analyzer includes: a heartbeat detecting section that detects the heartbeats; a pulse detecting section that detects outputs of the pacing pulses; a heartbeat determining section that determines whether the heartbeats are paced beats due to the pacing pulses or not, based on detection timings of the pacing pulses; a tachycardia determining section that, in a case where the paced beats are in a number that is equal to or larger than a predetermined heart rate, and are contained in the heartbeats at a predetermined ratio or more, determines that pacing tachycardia caused by the pacing pulses occurs in the living body; and a notifying section that notifies of the occurrence of the pacing tachycardia.Type: ApplicationFiled: March 26, 2020Publication date: October 15, 2020Inventors: Masafumi NAGASAWA, Kazuhiro SEKIKAWA, Kei KIMURA
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Publication number: 20200286433Abstract: A display element includes a light-emitting unit of a current drive type, and a drive unit that drives the light-emitting unit, in which the drive unit includes a capacitance unit, a drive transistor that causes a current corresponding to a voltage held by the capacitance unit to flow through the light-emitting unit, and a write transistor that writes a signal voltage to the capacitance unit, the drive transistor and the write transistor are formed in a state of being separated by an element isolation region, on a semiconductor substrate, and a capacitance generated in a portion where the drive transistor and the write transistor face each other through the element isolation region functions as at least a part of the capacitance unit.Type: ApplicationFiled: August 29, 2018Publication date: September 10, 2020Inventor: Kei Kimura
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Publication number: 20190385538Abstract: Provided is a source driver that is used for supplying a voltage corresponding to a gradation value of a video signal to a data line of a display unit, the source driver including: a resistor having an end to which a predetermined power supply voltage is applied; and a current source that is connected to another end of the resistor, the amount of current of the current source being controlled according to the gradation value of the video signal, the voltage corresponding to the gradation value of the video signal being supplied from the other end of the resistor.Type: ApplicationFiled: January 16, 2017Publication date: December 19, 2019Inventor: Kei Kimura
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Publication number: 20190156762Abstract: Provided is a display device including a driving transistor, a switching unit, and a control unit. The driving transistor includes a control terminal, a first terminal, and a second terminal, and controls supply of current to a light emitting element, which is connected to the first terminal and emits light in accordance with the current amount, in accordance with a signal voltage applied to the control terminal. The switching unit can switch a conduction and non-conduction state, and, by being brought in the conduction state, forms a path that bypasses the light emitting element so that the current is not supplied to the light emitting element. The control unit performs control so that the switching unit is brought in the non-conduction state after the signal voltage is written into the control terminal, and controls a potential of the control terminal in synchronization with the control of the switching unit.Type: ApplicationFiled: January 21, 2019Publication date: May 23, 2019Inventors: Kei Kimura, Yusuke Onoyama
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Patent number: 10210813Abstract: Provided is a display device including a driving transistor, a switching unit, and a control unit. The driving transistor includes a control terminal, a first terminal, and a second terminal, and controls supply of current to a light emitting element, which is connected to the first terminal and emits light in accordance with the current amount, in accordance with a signal voltage applied to the control terminal. The switching unit can switch a conduction and non-conduction state, and, by being brought in the conduction state, forms a path that bypasses the light emitting element so that the current is not supplied to the light emitting element. The control unit performs control so that the switching unit is brought in the non-conduction state after the signal voltage is written into the control terminal, and controls a potential of the control terminal in synchronization with the control of the switching unit.Type: GrantFiled: March 13, 2017Date of Patent: February 19, 2019Assignee: Sony CorporationInventors: Kei Kimura, Yusuke Onoyama
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Publication number: 20180247587Abstract: A display device of the present disclosure includes: a pixel array unit in which pixels each including a light emitting portion are arranged in a matrix form; and a video signal supply unit adapted to supply a video signal to a signal line provided for each pixel column of the pixel array unit. Additionally, the video signal supply unit includes drivers of a plurality of systems provided in a manner corresponding to a plurality of adjacent signal lines. An electronic apparatus of the present disclosure includes the display device having the above-described configuration.Type: ApplicationFiled: April 20, 2016Publication date: August 30, 2018Inventor: Kei Kimura
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Publication number: 20180190208Abstract: A gray-scale voltage generating circuit includes: a ladder resistor circuit including a plurality of resistors connected in series to one another, and configured to output a plurality of gray-scale voltages with different voltage values from ends of the respective resistors; and a constant current source configured to be connected in series to the ladder resistor circuit, in which the constant current source includes a current source transistor configured to be connected in series to the ladder resistor circuit, and a voltage setting section configured to select one voltage from the plurality of voltages and set the selected voltage as a voltage determining a current that is to flow through the current source transistor.Type: ApplicationFiled: February 27, 2018Publication date: July 5, 2018Inventors: KEI KIMURA, YUSUKE ONOYAMA, JUNICHI YAMASHITA
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Patent number: 9953582Abstract: A gray-scale voltage generating circuit includes a ladder resistor circuit and a constant current source. The ladder resistor circuit includes a plurality of resistors connected in series to one another, and is configured to output a plurality of gray-scale voltages with different voltage values from ends of the respective resistors. The constant current source is configured to be connected in series to the ladder resistor circuit.Type: GrantFiled: February 20, 2014Date of Patent: April 24, 2018Assignee: SONY CORPORATIONInventors: Kei Kimura, Junichi Yamashita
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Patent number: 9940877Abstract: A gray-scale voltage generating circuit includes: a ladder resistor circuit including a plurality of resistors connected in series to one another, and configured to output a plurality of gray-scale voltages with different voltage values from ends of the respective resistors; and a constant current source configured to be connected in series to the ladder resistor circuit, in which the constant current source includes a current source transistor configured to be connected in series to the ladder resistor circuit, and a voltage setting section configured to select one voltage from the plurality of voltages and set the selected voltage as a voltage determining a current that is to flow through the current source transistor.Type: GrantFiled: February 26, 2014Date of Patent: April 10, 2018Assignee: SONY CORPORATIONInventors: Kei Kimura, Yusuke Onoyama, Junichi Yamashita
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Publication number: 20170243544Abstract: Provided is a display device including a driving transistor, a switching unit, and a control unit. The driving transistor includes a control terminal, a first terminal, and a second terminal, and controls supply of current to a light emitting element, which is connected to the first terminal and emits light in accordance with the current amount, in accordance with a signal voltage applied to the control terminal. The switching unit can switch a conduction and non-conduction state, and, by being brought in the conduction state, forms a path that bypasses the light emitting element so that the current is not supplied to the light emitting element. The control unit performs control so that the switching unit is brought in the non-conduction state after the signal voltage is written into the control terminal, and controls a potential of the control terminal in synchronization with the control of the switching unit.Type: ApplicationFiled: March 13, 2017Publication date: August 24, 2017Inventors: Kei Kimura, Yusuke Onoyama
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Patent number: 9633604Abstract: Provided is a display device including a pixel array unit that is made by arranging a drive transistor to drive a light emitting unit, a sampling transistor to sample a signal voltage, and a pixel circuit having a storage capacitor to store the signal voltage which is written by sampling with the sampling transistor, and a drive unit that makes a gate node and a source node of the drive transistor be in a floating state up to performing writing of the signal voltage with the sampling transistor, after writing an initialization voltage in the gate node when the source node of the drive transistor is in a non-floating state.Type: GrantFiled: November 14, 2016Date of Patent: April 25, 2017Assignee: Sony CorporationInventors: Kei Kimura, Yusuke Onoyama, Naobumi Toyomura, Junichi Yamashita
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Patent number: 9626904Abstract: Provided is a display device including a driving transistor, a switching unit, and a control unit. The driving transistor includes a control terminal, a first terminal, and a second terminal, and controls supply of current to a light emitting element, which is connected to the first terminal and emits light in accordance with the current amount, in accordance with a signal voltage applied to the control terminal. The switching unit can switch a conduction and non-conduction state, and, by being brought in the conduction state, forms a path that bypasses the light emitting element so that the current is not supplied to the light emitting element. The control unit performs control so that the switching unit is brought in the non-conduction state after the signal voltage is written into the control terminal, and controls a potential of the control terminal in synchronization with the control of the switching unit.Type: GrantFiled: October 7, 2014Date of Patent: April 18, 2017Assignee: Sony CorporationInventors: Kei Kimura, Yusuke Onoyama
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Publication number: 20170061887Abstract: Provided is a display device including a pixel array unit that is made by arranging a drive transistor to drive a light emitting unit, a sampling transistor to sample a signal voltage, and a pixel circuit having a storage capacitor to store the signal voltage which is written by sampling with the sampling transistor, and a drive unit that makes a gate node and a source node of the drive transistor be in a floating state up to performing writing of the signal voltage with the sampling transistor, after writing an initialization voltage in the gate node when the source node of the drive transistor is in a non-floating state.Type: ApplicationFiled: November 14, 2016Publication date: March 2, 2017Inventors: Kei Kimura, Yusuke Onoyama, Naobumi Toyomura, Junichi Yamashita
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Patent number: 9524673Abstract: Provided is a display device including a pixel array unit that is made by arranging a drive transistor to drive a light emitting unit, a sampling transistor to sample a signal voltage, and a pixel circuit having a storage capacitor to store the signal voltage which is written by sampling with the sampling transistor, and a drive unit that makes a gate node and a source node of the drive transistor be in a floating state up to performing writing of the signal voltage with the sampling transistor, after writing an initialization voltage in the gate node when the source node of the drive transistor is in a non-floating state.Type: GrantFiled: July 9, 2014Date of Patent: December 20, 2016Assignee: Sony CorporationInventors: Kei Kimura, Yusuke Onoyama, Naobumi Toyomura, Junichi Yamashita