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公开(公告)号：US20190051928A1
公开(公告)日：2019-02-14
申请号：US16079676
申请日：2017-02-22
Applicant: NEC Corporation
Inventor： Daisuke KAWASAKI , Takashi OHTSUKA , Suguru TAMAI , Noboru YOSHIDA , Shinya SUDO
IPC: H01M10/0525 , H01M10/0566 , H01M4/583 , H01M4/62 , H01M4/38 , H01M10/058
Abstract: A negative electrode active material constituting a lithium ion secondary battery having high energy density and excellent cycle characteristics, and a negative electrode and a lithium ion secondary battery comprising the same are provided. The present invention relates to a negative electrode active material comprising graphite particles and crystalline silicon particles, wherein a median diameter of the crystalline silicon particles is 0.7 μm or less, and a weight ratio of the crystalline silicon particles to the total weight of the graphite particles and the crystalline silicon particles is 1 wt % or more and 25 wt % or less.
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公开(公告)号：US20180115015A1
公开(公告)日：2018-04-26
申请号：US15560833
申请日：2016-03-24
Applicant: NEC Corporation
Inventor： Kazuhiko INOUE , Kenichi SHIMURA , Daisuke KAWASAKI , Noboru YOSHIDA
CPC classification number: H01M10/0525 , B60L50/64 , H01M2/16 , H01M2/1653 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/364 , H01M4/38 , H01M4/386 , H01M4/48 , H01M4/483 , H01M4/587 , H01M10/058 , H01M2004/027 , H01M2220/20 , Y02T10/7011
Abstract: Provided is a lithium ion secondary battery with high safety and high energy density which solves a concern about the safety, when a large amount of metal is used in a negative electrode active materials to achieve higher energy density and therefore an acceptable amount of lithium in a carbon material of the negative electrode is smaller than a releasable amount of lithium in a positive electrode active material. The present invention relates to a lithium ion secondary battery, wherein the positive electrode has a charge capacity per unit area of 3 mAh/cm2 or more, the negative electrode comprises a metal and/or a metal oxide and a carbon as negative electrode active materials, the acceptable amount of lithium in the carbon in the negative electrode is less than the releasable amount of lithium from the positive electrode, and the separator has a thermal shrinkage coefficient of less than 3% at a boiling point of the electrolyte solution in the electrolyte solution.
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公开(公告)号：US20180076479A1
公开(公告)日：2018-03-15
申请号：US15560373
申请日：2016-03-22
Applicant: NEC CORPORATION
Inventor： Daisuke KAWASAKI , Kenichi SHlMURA , Noboru YOSHIDA , Kazuhiko INOUE , Jiro IRIYAMA
CPC classification number: H01M10/0525 , H01M2/145 , H01M2/1626 , H01M2/1633 , H01M2/1653 , H01M4/02 , H01M4/131 , H01M4/364 , H01M4/38 , H01M4/525 , H01M10/04 , H01M10/0567 , H01M10/058 , Y02T10/7011
Abstract: The present invention relates to a lithium ion secondary battery comprising an electrode element comprising a positive electrode, a negative electrode and a separator, and an electrolyte solution, wherein the separator has a shrinking ratio of 2% or less by heat treatment at 90 ° C. for 6 hours, and a contest of physically adsorbed water of the electrode element is 2% by mass or less, or a content of chemically adsorbed water in a positive electrode active material layer of the positive electrode is 1% by mass or less.
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公开(公告)号：US20170149097A1
公开(公告)日：2017-05-25
申请号：US15319345
申请日：2015-06-16
Applicant: NEC Corporation
Inventor： Noboru YOSHIDA , Ikiko SHIMANUKI , Shinsaku SAITHO , Hitoshi ISHIKAWA
IPC: H01M10/42 , H01M4/587 , H01M10/0525 , H01M4/525 , H01M10/0569 , H01M10/0567 , H01M10/0568 , H01M4/505
CPC classification number: H01M10/4235 , H01M4/505 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M2300/0037 , Y02T10/7011
Abstract: The present invention relates to an electrolytic solution comprising a cyclic dicarboxylic acid ester represented by the specific formula, and the secondary battery comprising the same. According to the present invention, the electrolytic solution comprising an additive which can improve a characteristics in a secondary battery and a secondary battery comprising the same can be provided.
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公开(公告)号：US20160028123A1
公开(公告)日：2016-01-28
申请号：US14771749
申请日：2014-02-28
Applicant: NEC CORPORATION
Inventor： Daisuke KAWASAKI , Ikiko SHIMANUKI , Noboru YOSHIDA
IPC: H01M10/0569 , H01M10/0525
CPC classification number: H01M10/0569 , H01M4/364 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M2300/0034 , Y02T10/7011
Abstract: A nonaqueous electrolyte solution secondary battery having an electrode element having a positive electrode and a negative electrode disposed so as to face each other, a nonaqueous electrolyte solution, and an outer package housing the electrode element and the nonaqueous electrolyte solution, wherein the nonaqueous electrolyte solution contains a cyclic sulfonic acid ester represented by the general formula (1), and a positive electrode active material in the positive electrode is a mixture of a lithium manganese composite oxide having a spinel structure and a lithium transition metal composite compound having a layered rock salt structure. wherein, in the formula (1), R1 and R2 are each independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen group or an amino group with the proviso that R1 and R2 are not hydrogen atoms at the same time; R3 represents a linkage group selected from the group consisting of an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, and a divalent group having 2 to 6 carbon atoms in which alkylene units or fluoroalkylene units are bonded through an ether group.
Abstract translation: 一种非水电解液二次电池，具有将正极和负极相对配置的电极元件，非水电解质溶液和容纳电极元件和非水电解质溶液的外包装体，其中，非水电解液 含有由通式（1）表示的环状磺酸酯，正极中的正极活性物质是具有尖晶石结构的锂锰复合氧化物和具有层状岩盐的锂过渡金属复合化合物的混合物 结构体。 其中，在式（1）中，R 1和R 2各自独立地为氢原子，具有1至5个碳原子的烷基，卤素基团或氨基，条件是R 1和R 2不在相同的氢原子 时间; R3表示选自碳原子数1〜5的亚烷基，羰基，磺酰基，碳原子数1〜6的氟代亚烷基，碳原子数2〜6的2价的基团的连接基团， 哪个亚烷基单元或氟亚烷基单元通过醚基键合。
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Patent Agency Ranking
26.发明申请公开(公告)号：US20250095189A1
公开(公告)日：2025-03-20
申请号：US18832563
申请日：2022-02-07
Applicant: NEC Corporation
Inventor： Ryo KAWAI , Noboru YOSHIDA , Satoshi YAMAZAKI , Tingting DONG , Jianquan LIU , Karen STEPHEN , Naoki SHINDOU , Yuta NAMIKI , Youhei SASAKI
IPC: G06T7/70 , G06T7/20 , G06V10/764 , G06V40/16
Abstract: An information processing apparatus (10) according to the present invention includes: an extraction unit (11) that extracts, using an image analysis technique, a scene of interest from a portion of a first moving image acquired by capturing a player, the portion being determined based on a specified time point; and an output unit (12) that outputs information indicating a position of the scene of interest within the first moving image.
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27.发明申请公开(公告)号：US20250029423A1
公开(公告)日：2025-01-23
申请号：US18711934
申请日：2021-11-29
Applicant: NEC Corporation
Inventor： Ryo KAWAI , Noboru YOSHIDA , Jianquan LIU
IPC: G06V40/20 , G06Q10/0639 , G06T7/246 , G06V10/62
Abstract: An action evaluation system includes at least one memory storing instructions, and at least one processor configured to execute the instructions to detect a predetermined unit action associated with a posture of a worker from skeleton data about a structure of a body of the worker extracted from image data obtained by capturing a series of work actions performed by the worker on a work object, determine whether or not the unit action is similar to a predetermined registration action and output a result of the determination.
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28.发明申请公开(公告)号：US20250014312A1
公开(公告)日：2025-01-09
申请号：US18711663
申请日：2021-12-08
Applicant: NEC Corporation
Inventor： Noboru YOSHIDA , Ryo Kawai , Jianquan Liu , Kazuki Ogata , Nacki Sugaya , Nobuyuki Tozawa
Abstract: An image processing system includes a first terminal and a second terminal communicably connected to each other. The first terminal includes an image data acquisition unit configured to acquire image data related to an image of a predetermined space from a camera that photographs the predetermined space. At least one of the first terminal or the second terminal includes an analysis unit configured to analyze whether skeletal data relating to a structure of a body of a person included in the image are similar to predetermined reference skeletal data. The second terminal includes a detection unit configured to detect a predetermined event based on a result of the analysis, and an output unit configured to output result information that is a result of the detection.
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29.发明公开公开(公告)号：US20240112364A1
公开(公告)日：2024-04-04
申请号：US17769103
申请日：2019-11-11
Applicant: NEC Corporation
Inventor： Noboru YOSHIDA
CPC classification number: G06T7/73 , G06T7/11 , G06T7/62 , G06V10/25 , G06T2207/20044 , G06V2201/07
Abstract: A person state detection apparatus (10) according to the present disclosure includes a skeleton detection unit (11) for detecting a two-dimensional skeletal structure of a person based on a two-dimensional image acquired from a camera, an aggregation unit (12) for aggregating skeleton information based on the two-dimensional skeletal structure detected by the detection unit (11) for each predetermined area in the two-dimensional image, and a state detection unit (13) for detecting a state of a target person for each predetermined area in the two-dimensional image based on the skeleton information aggregated by the aggregation unit (12).
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30.发明公开公开(公告)号：US20240087353A1
公开(公告)日：2024-03-14
申请号：US17766809
申请日：2019-10-31
Applicant: NEC Corporation
Inventor： Noboru YOSHIDA , Shoji NISHIMURA
IPC: G06V40/10 , G06T7/60 , G06T7/73 , G06V10/32 , G06V10/764
CPC classification number: G06V40/103 , G06T7/60 , G06T7/73 , G06V10/32 , G06V10/764 , G06V20/52
Abstract: An image processing apparatus (10) according to the present disclosure includes: a skeleton detection unit (11) configured to detect a two-dimensional skeleton structure of a person based on an acquired two-dimensional image; an estimation unit (12) configured to estimate the height of the person when the person stands upright in a two-dimensional image space based on the two-dimensional skeleton structure detected by the skeleton detection unit (11); and a normalizing unit (13) configured to normalize the two-dimensional skeleton structure detected based on the height of the person when the person stands upright estimated by the estimation unit (12).
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