公开(公告)号：US20240148317A1

公开(公告)日：2024-05-09

申请号：US18411130

申请日：2024-01-12

Applicant: NEC Corporation

Inventor： Zhenwei WANG ,  Chenhui HUANG ,  Kenichiro FUKUSHI ,  Kazuki IHARA ,  Fumiyuki NIHEY ,  Hiroshi KAJITANI ,  Yoshitaka NOZAKI ,  Kentaro NAKAHARA

IPC: A61B5/00 ,  A61B5/11 ,  G16H40/63

CPC classification number: A61B5/4571 ,  A61B5/112 ,  A61B5/7278 ,  G16H40/63

Abstract: Provided is a pelvic inclination estimation device including a communication unit that acquires feature amount data including a feature amount to be used for estimation of a pelvic inclination, the feature amount being extracted from a gait waveform of a spatial acceleration and a spatial angular velocity included in sensor data related to movement of a foot of a subject, a storage unit that stores an estimation model that outputs an estimation value related to the pelvic inclination according to an input of the feature amount included in the feature amount data, an estimation unit that inputs a feature amount included in the acquired feature amount data to the estimation model and estimate a pelvic inclination of the subject according to the estimation value output from the estimation model, and an output unit that outputs information associated to the pelvic inclination of the subject.

公开(公告)号：US20240122531A1

公开(公告)日：2024-04-18

申请号：US18395817

申请日：2023-12-26

Applicant: NEC Corporation

Inventor： Kazuki IHARA ,  Kenichiro FUKUSHI ,  Zhenwei WANG ,  Chenhui HUANG ,  Hiroshi KAJITANI ,  Fumiyuki NIHEY ,  Yoshitaka NOZAKI ,  Kentaro NAKAHARA

IPC: A61B5/00 ,  A61B5/11

CPC classification number: A61B5/4585 ,  A61B5/112 ,  A61B5/6807 ,  A61B2562/0219

Abstract: An index value estimation device including a data acquisition unit that acquires feature amount data including a feature amount extracted from sensor data related to a motion of a foot of a user and used for estimating an index value indicating a knee state of the user, a storage unit that stores an estimation model that outputs an index value according to an input of the feature amount data, an estimation unit that estimates an output obtained by inputting the acquired feature amount data to the estimation model as an index value indicating the knee state of the user, and an output unit that outputs information about the estimated index value indicating the knee state of the user.

公开(公告)号：US20160218360A1

公开(公告)日：2016-07-28

申请号：US14913892

申请日：2014-08-19

Applicant: NEC CORPORATION ,  TANAKA CHEMICAL CORPORATION

Inventor： Kentaro NAKAHARA ,  Ryota YUGE ,  Noriyuki TAMURA ,  Sadanori HATTORI ,  Kentaro KURATANI ,  Kyousuke DOUMAE ,  Hideka SHIBUYA ,  Mitsuharu TABUCHI

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  Y02T10/7011

Abstract: There is provided a lithium-iron-manganese-based composite oxide capable of providing a lithium-ion secondary battery which has a high capacity retention rate in charge/discharge cycles and in which the generation of a gas caused by charge/discharge cycles is reduced. A lithium-iron-manganese-based composite oxide having a layered rock-salt structure, wherein at least a part of the surface of a lithium-iron-manganese-based composite oxide represented by the following formula (1) is coated with an inorganic material: LixM1(y-p)MnpM2(z-p)FeqO(2-δ) (1) (wherein 1.05≦x≦1.32, 0.33≦y≦0.63, 0.06≦z≦0.50, 0

Abstract translation: 提供一种锂 - 铁 - 锰基复合氧化物，其能够提供在充电/放电循环中具有高容量保持率的锂离子二次电池，并且其中由充电/放电循环引起的气体的产生减少 。 一种具有层状岩盐结构的锂 - 铁 - 锰基复合氧化物，其中由下式（1）表示的锂 - 铁 - 锰基复合氧化物的至少一部分表面被无机 材料：LixM1（yp）MnpM2（zp）FeqO（2-δ）（1）（其中1.05≤x≤1.32,0.33≤y≤0.63,0.06≤z≤0.50,0≤p≤0.63,0.06≤q≤0.50 ，0≤δ≤0.80，y≥p，z≥q; M1为选自Ti和Zr中的至少一种元素; M2为选自Co，Ni和Mn中的至少一种元素）。

公开(公告)号：US20160028119A1

公开(公告)日：2016-01-28

申请号：US14772595

申请日：2014-08-20

Applicant: SEKISUI CHEMICAL CO., LTD. ,  NEC CORPORATION

Inventor： Masaru HEISHI ,  Takuya TOYOKAWA ,  Katsumi MAEDA ,  Noriyuki TAMURA ,  Kentaro NAKAHARA

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/505

CPC classification number: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0025 ,  Y02T10/7011

Abstract: A lithium ion secondary battery comprising: a positive electrode comprising a positive electrode active material; a negative electrode comprised mainly of a material capable of storing and releasing lithium ions; and an electrolytic liquid, the positive electrode active material being a lithium-iron-manganese complex oxide having a layered rock salt structure and represented by a chemical formula: LixFesM1(z-s)M2yO2-δ  wherein 1.05≦x≦1.32, 0.06≦s≦0.50, 0.06≦z≦0.50, 0.33≦y≦0.63, and 0≦δ≦0.80; M1 represents a metal selected from the group consisting of Co, Ni, Mn and a mixture thereof; and M2 represents a metal selected from the group consisting of Mn, Ti, Zr and a mixture thereof, the electrolytic liquid comprising 1,1,2,3,3,3-hexafluoropropyl difluoromethyl ether represented by the following formula (1):

Abstract translation: 一种锂离子二次电池，包括：正极，包括正极活性物质; 主要由能够储存和释放锂离子的材料构成的负极; 和电解液，所​​述正极活性物质是具有层状岩盐结构并由化学式：LixFesM1（zs）M2yO2-δ表示的锂 - 铁 - 锰复合氧化物，其中1.05＆nlE; x＆nlE; 1.32,0.06和nlE; s＆nlE; 0.50,0.06＆nlE; z＆nlE; 0.50,0.33＆nlE; y＆nlE; 0.63和0＆amp; nlE;δ＆nlE; 0.80; M1表示选自Co，Ni，Mn及其混合物的金属; M2表示选自Mn，Ti，Zr及其混合物的金属，电解液包含由下式（1）表示的1,1,2,3,3,3-六氟丙基二氟甲基醚：

公开(公告)号：US20240023835A1

公开(公告)日：2024-01-25

申请号：US18266414

申请日：2021-03-24

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Fumlyuki NIHEY ,  Kentaro NAKAHARA ,  Kenichiro FUKUSHI

IPC: A61B5/11 ,  A61B5/00

CPC classification number: A61B5/112 ,  A61B5/7235

Abstract: Please delete the Abstract of the Disclosure, and replace it with the following: A feature-amount generation device that includes an extraction unit that generates a gait waveform for one gait cycle from time-series data of sensor data related to a motion of a foot, extracts a feature amount from the generated gait waveform, and extracts a gait phase cluster by integrating a plurality of temporally continuous gait phases from each of which a feature amount is extracted, and a generation unit that generates a feature amount of the gait phase cluster using a preset feature-amount constitutive expression, and generates feature-amount data in which the plurality of gait phases constituting the gait phase cluster and the feature amount of the gait phase cluster are associated with each other.

公开(公告)号：US20230389859A1

公开(公告)日：2023-12-07

申请号：US18202829

申请日：2023-05-26

Applicant: NEC Corporation

Inventor： Kazuki IHARA ,  Kenichiro FUKUSHI ,  Zhenwei WANG ,  Chenhui HUANG ,  Hiroshi KAJITANI ,  Fumiyuki NIHEY ,  Yoshitaka NOZAKI ,  Kentaro NAKAHARA

IPC: A61B5/00 ,  A61B5/11

CPC classification number: A61B5/4585 ,  A61B5/112 ,  A61B5/6807 ,  A61B2562/0219

Abstract: An index value estimation device including a data acquisition unit that acquires feature amount data including a feature amount extracted from sensor data related to a motion of a foot of a user and used for estimating an index value indicating a knee state of the user, a storage unit that stores an estimation model that outputs an index value according to an input of the feature amount data, an estimation unit that estimates an output obtained by inputting the acquired feature amount data to the estimation model as an index value indicating the knee state of the user, and an output unit that outputs information about the estimated index value indicating the knee state of the user.

公开(公告)号：US20230371849A1

公开(公告)日：2023-11-23

申请号：US18195232

申请日：2023-05-09

Applicant: NEC Corporation

Inventor： Kazuki IHARA ,  Kenichiro FUKUSHI ,  Zhenwei WANG ,  Hiroshi KAJITANI ,  Fumiyuki NIHEY ,  Chenhui HUANG ,  Yoshitaka NOZAKI ,  Kentaro NAKAHARA

IPC: A61B5/11

CPC classification number: A61B5/112 ,  A61B2562/0219

Abstract: Provided is a gait information generation device including an acquisition unit that acquires gait data including time-series data of a foot position of a subject, a detection unit that detects a start point and an end point of a gait cycle from the time-series data of the foot position included in the gait data, a calculation unit that calculates a first movement amount component related to the start point and a second movement amount component related to the end point, a gait information generation unit that generates gait information about a gait movement path of the subject using the calculated first movement amount component and the calculated second movement amount component, and an output unit that outputs the generated gait information.

公开(公告)号：US20210345960A1

公开(公告)日：2021-11-11

申请号：US17283989

申请日：2018-10-17

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Kenichiro FUKUSHI ,  Hiroshi KAJITANI ,  Kentaro NAKAHARA ,  Takeo NOZAKI

IPC: A61B5/00 ,  A61B5/11 ,  A61B5/103

Abstract: A body weight estimation device includes: a data reception unit that receives gait data including the gait characteristics of a walking person; a first calculation unit that extracts a feature quantity based on the gait characteristics of the walking person from the gait data; a second calculation unit that generates a learning model by learning a correlation between the feature quantity extracted by the first calculation unit and body weight information about the walking person, using the gait data as sample data; and an estimation unit that estimates the body weight information associated with the gait data of an estimation target by inputting the gait data of the estimation target to the learning model.

公开(公告)号：US20170288224A1

公开(公告)日：2017-10-05

申请号：US15506813

申请日：2014-08-29

Applicant: NEC Corporation

Inventor： Qian CHENG ,  Noriyuki TAMURA ,  Kentaro NAKAHARA

IPC: H01M4/587 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/38 ,  H01M4/36 ,  H01M4/1393

CPC classification number: H01M4/587 ,  C01B32/00 ,  C01B32/182 ,  C01B2204/22 ,  C01P2004/61 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027

Abstract: The present invention provides an anode material for a lithium-ion battery comprising a carbon particle having a particle size of 5 μm to 30 μm, and including defective portions on a surface of the carbon particle, the defective portions being holes or pores formed by anodic oxidation of the carbon particle.

公开(公告)号：US20160006010A1

公开(公告)日：2016-01-07

申请号：US14765173

申请日：2014-01-16

Applicant: NEC CORPORATION

Inventor： Masahiro SUGURO ,  Midori SHIMURA ,  Noriyuki TAMURA ,  Kentaro NAKAHARA

IPC: H01M2/16

CPC classification number: H01M2/1673 ,  H01M2/1653 ,  H01M4/366 ,  H01M4/62 ,  H01M10/052 ,  H01M10/4235 ,  H01M2004/027

Abstract: The present invention relates to a negative electrode for a lithium secondary battery containing a lithium sulfonate represented by a general formula (I) and provides a secondary battery that is excellent in a cycle characteristic and a storage characteristic under a high temperature environment: wherein R represents an n-valent aliphatic hydrocarbon group having 1 to 30 carbon atoms, an n-valent mononuclear aromatic group or an n-valent binuclear condensed aromatic group, and n represents 1 or 2.

Abstract translation: 本发明涉及一种含有由通式（I）表示的磺酸锂的锂二次电池用负极，提供了在高温环境下的循环特性和储存特性优异的二次电池，其中R表示 n价的碳原子数1〜30的脂肪族烃基，n价的单核芳香族基团或n价的双核稠合芳香族基团，n表示1或2。