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公开(公告)号：US20240244732A1
公开(公告)日：2024-07-18
申请号：US18289069
申请日：2022-05-11
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takashi SHINGU , Tsunenori SUZUKI , Satoshi SEO , Haruki KATAGIRI , Noboru INOUE , Kazuhiko FUJITA , Toshiki SASAKI , Hideko YOSHIZUMI
IPC: H05B47/165 , F21V1/14 , F21Y115/15
CPC classification number: H05B47/165 , F21V1/146 , F21Y2115/15
Abstract: Provided is a novel light adjustment program that can make a human feel at ease. Provided is the light adjustment program that includes the steps of obtaining basic data having 1/f fluctuation characteristics; generating first smoothed data and second smoothed data by performing moving average processing with different periods on the basic data having 1/f fluctuation characteristics; generating light adjustment data by subjecting the first smoothed data and the second smoothed data to arithmetic processing; and changing luminance of a light-emitting device in time series in accordance with the light adjustment data.
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公开(公告)号：US20230004207A1
公开(公告)日：2023-01-05
申请号：US17781172
申请日：2020-11-25
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Haruki KATAGIRI , Kyoichi MUKAO , Taiki NONAKA , Kazuhiko FUJITA , Yuta ISHIKAWA
IPC: G06F1/3237 , G06V40/12 , G06F21/32
Abstract: The power consumption of a control device or a data processing system is reduced. Safety is enhanced. An electronic device is operated in a simple way. A control device includes an arithmetic circuit, an input unit, and a power management unit. The input unit includes a sensor element. The power management unit has a function of controlling supply and shutdown of power to the arithmetic circuit. The power management unit has a function of supplying power to the arithmetic circuit in response to a detection signal output from the sensor element. The sensor element includes one or more selected from an acceleration sensor, an angular velocity sensor, and a magnetic sensor. The arithmetic circuit includes a register. The register includes a first circuit and a second circuit. The register has a function of storing, in the second circuit, first data stored in the first circuit in a period during which the power management unit supplies power to the arithmetic circuit and retaining the first data, in a period during which the power management unit stops power supply to the arithmetic circuit. The arithmetic circuit has a function of generating second data with use of signal data output from the sensor element and the first data.
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公开(公告)号：US20230328905A1
公开(公告)日：2023-10-12
申请号：US18204089
申请日：2023-05-31
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Masaaki HIROKI , Haruki KATAGIRI , Shinya OKANO
CPC classification number: H05K5/0086 , G04G17/04 , H05K7/02 , G06F1/163 , G04G17/08
Abstract: An electronic device of a novel embodiment, specifically an arm-worn electronic device used while being worn on an arm, is provided. An arm-worn secondary battery used while being worn on an arm is provided. An electronic device is provided, which includes a structure body having a curved surface as a support structure body, a flexible secondary battery including a film as an exterior body over the curved surface of the support structure body, and a display portion including a plurality of display elements between a pair of films over the secondary battery. The plurality of display elements and the secondary battery overlap with each other at least partly. It is possible to provide an electronic device which has a small maximum thickness of 1 cm or less and a light weight of 50 g or less even when an arm-worn secondary battery is provided with a display portion.
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公开(公告)号：US20220368149A1
公开(公告)日：2022-11-17
申请号：US17771970
申请日：2020-10-19
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Haruki KATAGIRI , Kyoichi MUKAO , Motohiro ENDO
Abstract: Power consumption of a power storage device is reduced. A highly safe power storage device is provided. Safety of a battery monitored by a semiconductor device is improved. Power consumption is reduced; for example, power in a resting state is reduced. Time needed to perform processing for transition from a resting state to a normal state is shortened or energy is reduced. A power storage device includes a battery, a control circuit, and a converter circuit. The converter circuit has a function of supplying a voltage to the battery; and the control circuit has a function of measuring data of a voltage of the battery and a function of retaining the data of the voltage of the battery.
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公开(公告)号：US20170347471A1
公开(公告)日：2017-11-30
申请号：US15646400
申请日：2017-07-11
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Masaaki HIROKI , Haruki KATAGIRI , Shinya OKANO
CPC classification number: H05K5/0086 , G04G17/04 , G04G17/08 , H05K7/02
Abstract: An electronic device of a novel embodiment, specifically an arm-worn electronic device used while being worn on an arm, is provided. An arm-worn secondary battery used while being worn on an arm is provided. An electronic device is provided, which includes a structure body having a curved surface as a support structure body, a flexible secondary battery including a film as an exterior body over the curved surface of the support structure body, and a display portion including a plurality of display elements between a pair of films over the secondary battery. The plurality of display elements and the secondary battery overlap with each other at least partly. It is possible to provide an electronic device which has a small maximum thickness of 1 cm or less and a light weight of 50 g or less even when an arm-worn secondary battery is provided with a display portion.
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Patent Agency Ranking
公开(公告)号：US20250142740A1
公开(公告)日：2025-05-01
申请号：US19005382
申请日：2024-12-30
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Masaaki HIROKI , Haruki KATAGIRI , Shinya OKANO
Abstract: An electronic device of a novel embodiment, specifically an arm-worn electronic device used while being worn on an arm, is provided. An arm-worn secondary battery used while being worn on an arm is provided. An electronic device is provided, which includes a structure body having a curved surface as a support structure body, a flexible secondary battery including a film as an exterior body over the curved surface of the support structure body, and a display portion including a plurality of display elements between a pair of films over the secondary battery. The plurality of display elements and the secondary battery overlap with each other at least partly. It is possible to provide an electronic device which has a small maximum thickness of 1 cm or less and a light weight of 50 g or less even when an arm-worn secondary battery is provided with a display portion
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公开(公告)号：US20240170993A1
公开(公告)日：2024-05-23
申请号：US18548353
申请日：2022-02-24
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazuki TANEMURA , Mayumi MIKAMI , Takeshi OSADA , Yohei MOMMA , Tetsuji ISHITANI , Haruki KATAGIRI
CPC classification number: H02J7/04 , H01M4/525 , H01M10/443 , H02J7/0047 , H02J7/007182
Abstract: A power storage system with a high energy density is provided. A power storage system with a high degree of safety is provided. A secondary battery with a high energy density is provided. A secondary battery with a high degree of safety is provided. A charging unit has a function of controlling start and stop of charge of a secondary battery and a function of controlling a charge current of the secondary battery. The secondary battery includes a positive electrode, the positive electrode includes a positive electrode active material particle, the positive electrode active material particle is lithium cobalt oxide to which magnesium is added. The charging unit has a function of controlling charge of the secondary battery by a first step of starting constant current charge of the secondary battery at a time t1; and a second step of stopping the charge at a time t2. A crystal structure of the lithium cobalt oxide at the time t2, which is determined by powder X-ray diffraction, is a crystal structure represented by a space group R-3m.
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公开(公告)号：US20240036117A1
公开(公告)日：2024-02-01
申请号：US18359999
申请日：2023-07-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazuki TANEMURA , Mayumi MIKAMI , Kazuki HIGASHI , Haruki KATAGIRI , Kyoichi MUKAO
IPC: G01R31/3835 , G01R31/36
CPC classification number: G01R31/3835 , G01R31/3646 , G01R31/3648
Abstract: A battery evaluation system that performs evaluation by easily linking a plurality of measurement methods relating to a secondary battery is provided. A charge and discharge device is configured to perform, in a first period, either or both of charge and discharge of a secondary battery. The first measurement device is configured to perform, in the first period, measurement of a spectrum a plurality of times. The arithmetic portion is configured to generate a first graph using the plurality of measured spectra. The arithmetic portion is configured to generate data of a second graph using a set of data including a voltage and the time of measurement of the voltage. A display portion is configured to display the first graph and the second graph at the same time. The battery evaluation system is configured to set a first area in one of the first graph and the second graph and to display a second area corresponding to the first area in the other of the first graph and the second graph.
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公开(公告)号：US20240396357A1
公开(公告)日：2024-11-28
申请号：US18687412
申请日：2022-08-22
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takeshi OSADA , Haruki KATAGIRI , Kyoichi MUKAO , Mayumi MIKAMI , Kazutaka KURIKI , Kazuki TANEMURA
Abstract: A secondary battery management system for achieving a secondary battery capable of being used even at low temperatures. The secondary battery management system includes a secondary battery that is charged and discharged at higher than or equal to −50° C. and lower than or equal to 0° C., a first circuit having a function of measuring a voltage of the secondary battery, a second circuit having a function of measuring a current of the secondary battery, and a control circuit to which information on voltage from the first circuit or information on current from the second circuit is input. The control circuit starts charging to the secondary battery. The control circuit performs arithmetic operation of data showing battery characteristics on the basis of a value input from the first circuit or the second circuit. The control circuit detects a local maximum value of the data. The control circuit stops the charging when detecting the local maximum value.
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公开(公告)号：US20220334632A1
公开(公告)日：2022-10-20
申请号：US17636039
申请日：2020-08-20
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Haruki KATAGIRI , Yosuke TSUKAMOTO , Daisuke FURUMATSU , Kyoichi MUKAO , Motohiro ENDO
IPC: G06F1/3215 , G06F1/3234
Abstract: Power consumption is reduced. A semiconductor device includes a sensor circuit including a sensor element, a power management unit, and an arithmetic processing circuit. The power management unit has a function of controlling power supply to the arithmetic processing circuit. The arithmetic processing circuit includes a first circuit including a first storage circuit and a second circuit including a second storage circuit. The first circuit has a function of retaining first data in the first storage circuit during a period where electric power is supplied to the arithmetic processing circuit. The second circuit has a function of reading out the first data retained in the first storage circuit and writing the first data to the second storage circuit during a period where electric power is supplied to the arithmetic processing circuit, and a function of retaining the first data in the second storage circuit during a period where power supply to the arithmetic processing circuit is stopped. The sensor circuit has a function of judging a sensed signal of the sensor element and supplying second data to the power management unit in accordance with the judgment result. The power management unit has a function of restarting or stopping power supply to the arithmetic processing circuit in accordance with the second data.
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