公开(公告)号：US20240257975A1

公开(公告)日：2024-08-01

申请号：US18560462

申请日：2021-05-21

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Zhenwei WANG ,  Kenichiro FUKUSHI ,  Fumiyuki NIHEY ,  Hiroshi KAJITANI ,  Kentaro NAKAHARA

IPC: G16H50/20 ,  A61B5/00 ,  A61B5/103 ,  A61B5/11 ,  G16H50/30 ,  G16H50/70

CPC classification number: G16H50/20 ,  A61B5/1036 ,  A61B5/1121 ,  A61B5/6807 ,  A61B5/743 ,  G16H50/30 ,  G16H50/70 ,  A61B2503/08 ,  A61B2560/045 ,  A61B2560/0462 ,  A61B2562/0219 ,  A61B2562/0247

Abstract: To estimate the body condition according to the attributes on the basis of sensor data measured while a user is walking, this estimation device comprises: a feature amount extraction unit that extracts, from a walking waveform extracted from time-series data of sensor data based on the movement of user's legs, a feature amount according to user's attributes in a section in which features of the body condition of the user according to the user's attributes are exhibited; and an estimation unit that estimates the user's body condition using the feature amount extracted according to the user's attributes.

公开(公告)号：US20240138757A1

公开(公告)日：2024-05-02

申请号：US18410330

申请日：2024-01-11

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：US20220391010A1

公开(公告)日：2022-12-08

申请号：US17769827

申请日：2019-10-31

Applicant: NEC Corporation

Inventor： Kenichiro FUKUSHI ,  Hiroaki Nakano ,  Toshinori TAKEMURA ,  Kentaro NAKAHARA ,  Hannah POKKA ,  Itsumi KATO ,  Akira KAMEI ,  Chenhui HUANG ,  Hiroshi KAJITANI ,  Zhenwei WANG ,  Koichi MORIKAWA ,  Hiroshi OKUDA

IPC: G06F3/01

Abstract: An information processing system includes an acquisition unit configured to acquire sensing data from a sensor device used for a foot, and a determination unit configured to determine an attached state of the sensor device to the foot according to a motion of the foot calculated using the sensing data.

公开(公告)号：US20170283265A1

公开(公告)日：2017-10-05

申请号：US15506817

申请日：2014-08-29

Applicant: NEC Corporation

Inventor： Qian CHENG ,  Noriyuki TAMURA ,  Kentaro NAKAHARA

IPC: H01M10/0525 ,  H01M4/62 ,  C01B31/04 ,  H01M4/38

CPC classification number: H01M10/0525 ,  C01B32/05 ,  C01B32/182 ,  C01P2004/61 ,  H01M4/131 ,  H01M4/364 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/027

Abstract: The present invention provides a novel carbon material comprising a three-dimensional graphene network constituting a plurality of cells interconnecting as a whole, where at least one of the cells has single-layer graphene wall. The carbon material is suitable for a lithium ion battery.

公开(公告)号：US20160190562A1

公开(公告)日：2016-06-30

申请号：US14910045

申请日：2014-08-20

Applicant: NEC CORPORATION

Inventor： Noriyuki TAMURA ,  Ryota YUGE ,  Qian CHENG ,  Kentaro NAKAHARA

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/38 ,  H01M4/525

CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/386 ,  H01M4/483 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027

Abstract: A negative electrode for a lithium ion secondary battery, including a negative electrode active material layer containing a negative electrode active material including silicon (Si) as a constituent element, in which a coating including iron (Fe), manganese (Mn) and oxygen (O) as constituent elements is formed on a surface of the negative electrode active material layer.

Abstract translation: 一种锂离子二次电池用负极，其包含含有作为构成元素的硅（Si）的负极活性物质的负极活性物质层，其中包含铁（Fe），锰（Mn）和氧（ O）作为构成元素形成在负极活性物质层的表面上。

公开(公告)号：US20160126549A1

公开(公告)日：2016-05-05

申请号：US14895650

申请日：2014-06-05

Applicant: NEC CORPORATION

Inventor： Ryota YUGE ,  Kentaro NAKAHARA ,  Sadanori HATTORI

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

CPC classification number: H01M4/525 ,  C01G53/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2004/84 ,  H01M4/0428 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/505 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30

Abstract: The present invention relates to a lithium manganese composite oxide having a metal-containing compound film and a carbon coating, in which at least a part of a surface of the lithium manganese composite oxide represented by Formula (1) is coated with the metal-containing compound film, and at least a part of the surface thereof is further coated with the carbon coating. The present invention can provide a positive electrode material capable of improving the discharge characteristics and the capacity retention rate after cycles of lithium ion secondary batteries. Li1+x(FeyNizMn1-y-z)1-xO2  (1), where 0

Abstract translation: 本发明涉及含有金属的化合物膜和碳涂层的锂锰复合氧化物，其中由式（1）表示的锂锰复合氧化物的表面的至少一部分被含金属的 复合膜，并且其表面的至少一部分进一步涂覆有碳涂层。 本发明可以提供能够提高锂离子二次电池的循环后的放电特性和容量保持率的正极材料。 Li1 + x（FeyNizMn1-y-z）1-xO2（1）其中0

公开(公告)号：US20250114018A1

公开(公告)日：2025-04-10

申请号：US18729202

申请日：2022-02-17

Applicant: NEC Corporation

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

IPC: A61B5/11

Abstract: A detection device that includes an acquisition unit that acquires data including a dorsiflexion peak time, a plantarflexion peak time, and travel direction acceleration acquired from sensor data regarding a movement of a foot, a candidate detection unit that detects, as a candidate time for heel strike, a time of a feature signal point extracted from time-series data of the travel direction acceleration in an investigation time period starting from an acceleration peak time detected from the travel direction acceleration based on the dorsiflexion peak time, and an output unit that outputs the detected candidate time as a heel strike time.

公开(公告)号：US20250068923A1

公开(公告)日：2025-02-27

申请号：US18726466

申请日：2022-01-24

Applicant: NEC CORPORATION

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

IPC: G06N3/094 ,  G06N3/045

Abstract: A machine learning device that trains a first encoding model for encoding first sensor data into first code, a second encoding model for encoding second sensor data into second code, and an estimation model for making estimation using the first code and the second code such that an estimation result from the estimation model conforms to correct answer data, trains a first adversarial estimation model that outputs an estimated value of the second code in response to the input of the first code such that the estimated value of the second code estimated by the first adversarial estimation model conforms to the second code outputted from the second encoding model, and trains the first encoding model such that the estimated value of the second code estimated by the first adversarial estimation model does not conform to the second code outputted from the second encoding model.

公开(公告)号：US20240148278A1

公开(公告)日：2024-05-09

申请号：US18411324

申请日：2024-01-12

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Kenichiro FUKUSHI ,  Zhenwei WANG ,  Hiroshi KAJITANI ,  Fumiyuki NIHEY ,  Kentaro NAKAHARA

IPC: A61B5/11 ,  A61B5/107

CPC classification number: A61B5/112 ,  A61B5/1074

Abstract: An estimation device that includes a detection unit that detects a terminal stance period from time-series data of sensor data based on a physical quantity related to movement of a foot measured by a sensor provided at a foot portion, a feature amount extraction unit that extracts a feature amount from an angular waveform in a coronal plane during the terminal stance period, and a presumption unit that estimates a degree of pronation/supination of the foot by using the feature amount extracted from the angular waveform in the coronal plane.

公开(公告)号：US20230188958A1

公开(公告)日：2023-06-15

申请号：US17767501

申请日：2019-10-21

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Yuka IMAI ,  Toshinori TAKEMURA ,  Kentaro NAKAHARA ,  Hannah POKKA ,  Itsumi HANEDA ,  Akira KAMEL ,  Kenichiro FUKUSHI ,  Hiroshi KAJITANl ,  Zhenwei WANG ,  Koichi MORIKAWA ,  Hiroshi OKUDA ,  Hiroaki NAKANO

IPC: H04W4/38 ,  H04W4/029

CPC classification number: H04W4/38 ,  H04W4/029

Abstract: A mobile terminal acquires a schedule of a user using a module device that includes a sensor, and instructs the module device to initiate a process for determining when to start or when to stop transmitting sensing information detected by the sensor to a communication destination, on the basis of the schedule. The module device acquires the sensing information, and initiates the process for determining when to start or when to stop transmitting the sensing information to the communication destination, on the basis of the instruction to initiate the determination process.