公开(公告)号：US20190051928A1

公开(公告)日：2019-02-14

申请号：US16079676

申请日：2017-02-22

申请人： NEC Corporation

发明人： Daisuke KAWASAKI ,  Takashi OHTSUKA ,  Suguru TAMAI ,  Noboru YOSHIDA ,  Shinya SUDO

IPC分类号： H01M10/0525 ,  H01M10/0566 ,  H01M4/583 ,  H01M4/62 ,  H01M4/38 ,  H01M10/058

摘要： 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.

公开(公告)号：US20180115015A1

公开(公告)日：2018-04-26

申请号：US15560833

申请日：2016-03-24

申请人： NEC Corporation

发明人： Kazuhiko INOUE ,  Kenichi SHIMURA ,  Daisuke KAWASAKI ,  Noboru YOSHIDA

IPC分类号： H01M10/0525 ,  H01M4/587 ,  H01M4/38 ,  H01M4/36 ,  H01M4/48 ,  H01M2/16 ,  B60L11/18

CPC分类号： 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

摘要： 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.

公开(公告)号：US20180076479A1

公开(公告)日：2018-03-15

申请号：US15560373

申请日：2016-03-22

申请人： NEC CORPORATION

发明人： Daisuke KAWASAKI ,  Kenichi SHlMURA ,  Noboru YOSHIDA ,  Kazuhiko INOUE ,  Jiro IRIYAMA

IPC分类号： H01M10/0525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/02 ,  H01M2/14 ,  H01M2/16

CPC分类号： 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

摘要： 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.

公开(公告)号：US20170149097A1

公开(公告)日：2017-05-25

申请号：US15319345

申请日：2015-06-16

申请人： NEC Corporation

发明人： Noboru YOSHIDA ,  Ikiko SHIMANUKI ,  Shinsaku SAITHO ,  Hitoshi ISHIKAWA

IPC分类号： H01M10/42 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/525 ,  H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/505

CPC分类号： H01M10/4235 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037 ,  Y02T10/7011

摘要： 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.

公开(公告)号：US20160028123A1

公开(公告)日：2016-01-28

申请号：US14771749

申请日：2014-02-28

申请人： NEC CORPORATION

发明人： Daisuke KAWASAKI ,  Ikiko SHIMANUKI ,  Noboru YOSHIDA

IPC分类号： H01M10/0569 ,  H01M10/0525

CPC分类号： H01M10/0569 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2300/0034 ,  Y02T10/7011

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20240096182A1

公开(公告)日：2024-03-21

申请号：US18274620

申请日：2021-07-28

申请人： NEC Corporation

发明人： Ryo KAWAI ,  Noboru YOSHIDA ,  Jianquan LIU ,  Shunsuke TSUDA ,  Yuki TSURUOKA

IPC分类号： G07G1/00 ,  A47F9/04 ,  G06V20/40

CPC分类号： G07G1/0036 ,  A47F9/047 ,  G06V20/44

摘要： An action detection system (10) includes an action specification unit (18) configured to start specification of at least one action ID based on at least part of skeleton information extracted from video data that is a captured video of a user in response to detection of the user visiting checkout machine determined in advance, a determination unit (20) configured to determine whether or not an action sequence including the specified at least one action ID corresponds to registration action sequences registered in advance, and a processing control unit (21) configured to execute processing determined in advance in accordance with a determination result.

公开(公告)号：US20240086455A1

公开(公告)日：2024-03-14

申请号：US18240519

申请日：2023-08-31

申请人： NEC Corporation

发明人： Tingting Dong ,  Noboru YOSHIDA

IPC分类号： G06F16/535

CPC分类号： G06F16/535

摘要： To improve accuracy of processing of searching for an image including a desired person from among a plurality of images, the present invention provides an image search apparatus 10 including an image acquisition unit 11 that acquires a plurality of query images, an attribute information generation unit 12 that generates attribute information from each of a plurality of the query images, an integration unit 13 that generates integrated attribute information by integrating a plurality of pieces of the attribute information generated from each of a plurality of the query images, and a search unit 14 that searches for a target image from a plurality of reference images by using the integrated attribute information.

公开(公告)号：US20240013534A1

公开(公告)日：2024-01-11

申请号：US18215540

申请日：2023-06-28

申请人： NEC Corporation

发明人： Jianquan LIU ,  Ryo KAWAI ,  Noboru YOSHIDA ,  Satoshi YAMAZAKI ,  Tingting DONG ,  Karen STEPHEN ,  Yuta NAMIKI ,  Naoki SHINDOU ,  Youhei SASAKI

IPC分类号： G06V20/40 ,  G06V40/10

CPC分类号： G06V20/40 ,  G06V40/10

摘要： To utilize a result of analyzing an interval between persons included in a video, a video analysis apparatus 100 includes an interval acquisition unit 110 and a display control unit 113. The interval acquisition unit 110 acquires an interval between persons included in a video acquired by photographing a target region. The display control unit 113 causes a display unit to display a time-series transition of first information relating to the number of persons with the acquired interval being equal to or less than a reference value.

公开(公告)号：US20230410361A1

公开(公告)日：2023-12-21

申请号：US18200870

申请日：2023-05-23

申请人： NEC Corporation

发明人： Hiroaki TAKEUCHI ,  Ryo KAWAI ,  Noboru YOSHIDA ,  Jianquan LIU ,  Yuta NAMIKI ,  Naoki SHINDOU ,  Youhei SASAKI

IPC分类号： G06T7/73 ,  G06V10/776 ,  G06V10/94 ,  G06V40/10 ,  G06V10/74

CPC分类号： G06T7/74 ,  G06V10/776 ,  G06V10/95 ,  G06V40/10 ,  G06T2200/24 ,  G06V10/945 ,  G06T2207/30196 ,  G06T2207/20092 ,  G06V10/761

摘要： To achieve faster search processing in the search processing of a similar image, based on a feature value of each of a plurality of keypoints of a human body included in an image, the present invention provides an image processing system 10 including: a target image acquisition unit 11 that acquires a target image; a skeleton structure detection unit 12 that performs processing of detecting a keypoint of a human body included in the target image; a first verification unit 13 that extracts a first reference image whose relationship with the target image satisfies a first extraction condition, from among a plurality of reference images, based on the detected keypoint; and a second verification unit 14 that extracts a second reference image whose relationship with the target image satisfies a second extraction condition, from among the first reference images, based on the detected keypoint.

公开(公告)号：US20230368419A1

公开(公告)日：2023-11-16

申请号：US18030651

申请日：2020-10-13

申请人： NEC Corporation

发明人： Noboru YOSHIDA

IPC分类号： G06T7/73 ,  G06T7/77 ,  G06V10/764 ,  G06V40/10 ,  G06V10/762 ,  G06V10/74 ,  G06V10/75 ,  G06F16/55 ,  G06F16/532

CPC分类号： G06T7/74 ,  G06T7/77 ,  G06V10/764 ,  G06V40/103 ,  G06V10/762 ,  G06V10/761 ,  G06V10/751 ,  G06F16/55 ,  G06F16/532 ,  G06T2207/30196 ,  G06T2207/20092 ,  G06T2207/30232

摘要： A query acquisition unit (610) acquires query information. The query information includes information indicating a relative position of each of a plurality of keypoints. By using the query information and reference pose information, a threshold value setting unit (620) sets a threshold value for selecting at least one target image from a plurality of selection target images. An image selection unit (630) selects at least one target image from the plurality of selection target images. Specifically, the image selection unit (630) selects at least one target image by using relative positions of a plurality of keypoints of a person included in each of the plurality of selection target images, the query information, and the threshold value. The threshold value setting unit (620) may set a threshold value for classifying a plurality of selection target images.