公开(公告)号：US20250065776A1

公开(公告)日：2025-02-27

申请号：US18551561

申请日：2022-03-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeshi OSADA ,  Noboru INOUE ,  Haruki KATAGIRI ,  Yosuke TSUKAMOTO ,  Mayumi MIKAMI ,  Kazuki TANEMURA ,  Kousuke SASAKI

IPC: B60L58/22 ,  B60L50/60 ,  B60L58/12 ,  G07C5/00 ,  H01M10/42 ,  H01M50/209 ,  H01M50/211 ,  H01M50/213 ,  H02J7/00

Abstract: A system is provided with which data on the internal state of a storage battery such as SOC-OCV characteristics and FCC can be obtained with high accuracy and highly accurate estimation is possible even in the case of repeating charging and discharging for a long period. The storage battery management system includes a vehicle that includes a unit enabling data transmission and reception; the vehicle includes a storage battery, a balancing circuit electrically connected to the storage battery, and a vehicle control unit having a function of controlling the balancing circuit; the storage battery includes an assembled battery including a plurality of battery cells; the vehicle control unit has a function of selecting an estimated value that most closely shows a state of each of the battery cells included in the assembled battery; and the balancing circuit has a function of being controlled in accordance with the selected estimated value.

公开(公告)号：US20250023362A1

公开(公告)日：2025-01-16

申请号：US18711808

申请日：2022-11-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeshi OSADA ,  Tetsuya KAKEHATA ,  Yosuke TSUKAMOTO ,  Shigeru ONOYA ,  Noboru INOUE ,  Shunpei YAMAZAKI

IPC: H02J7/00 ,  B60R25/045 ,  B62J43/13 ,  B62J43/16 ,  H04L9/40 ,  H04W12/06

Abstract: An electric vehicle and a system that easily recognize theft of a secondary battery of an electric vehicle typified by an electrically assisted bicycle and prevent the theft are provided. To prevent the theft of a secondary battery that can be detached from an electric vehicle typified by an electrically assisted bicycle or an electric motorcycle, mutual authentication between an electric vehicle body unit and a secondary battery unit is performed. The secondary battery unit at least includes a first memory portion storing first identification information, an authentication portion, and a wireless communication portion.

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.

公开(公告)号：US20220190270A1

公开(公告)日：2022-06-16

申请号：US17600906

申请日：2020-04-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shigeru ONOYA ,  Noboru INOUE ,  Takahiro FUKUTOME

IPC: H01L51/50 ,  H01L21/8234 ,  H01L27/06 ,  H01L27/07 ,  H01L31/167

Abstract: A solid-state relay having favorable electrical characteristics is provided. The solid-state relay includes a first circuit and a second circuit. The first circuit includes a first light-emitting element. The second circuit includes a first light-receiving element, a memory, and a first switch. The memory includes a second switch. The second switch includes a second semiconductor layer. The first switch and the first light-emitting element are formed using a first semiconductor layer. The first semiconductor layer and the second semiconductor layer contain gallium, and the second semiconductor layer further contains oxygen. On or off of the first light-emitting element is controlled by a first signal supplied to the first circuit. First data, which is generated when the first light-receiving element converts light emitted by the first light-emitting element into voltage, is supplied to the memory. Conduction or non-conduction of the first switch is controlled by the first data stored in the memory.