Patents by Inventor Fumiyuki Nihey
Fumiyuki Nihey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230397841Abstract: Provided is a harmonic index estimation device including a communication unit that acquires feature amount data including a feature amount used for estimation of a harmonic index related to smoothness of movement of a waist, 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 harmonic index, according to an input of the feature amount included in the feature amount data, an estimation unit that inputs the feature amount included in the feature amount data to the estimation model and estimate a harmonic index of the subject according to the estimation value output from the estimation model, and an output unit that outputs information associated to the harmonic index.Type: ApplicationFiled: May 30, 2023Publication date: December 14, 2023Applicant: NEC CorporationInventors: Chenhui HUANG, Zhenwei Wang, Fumiyuki Nihey
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Publication number: 20230389859Abstract: 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.Type: ApplicationFiled: May 26, 2023Publication date: December 7, 2023Applicant: NEC CorporationInventors: Kazuki IHARA, Kenichiro FUKUSHI, Zhenwei WANG, Chenhui HUANG, Hiroshi KAJITANI, Fumiyuki NIHEY, Yoshitaka NOZAKI, Kentaro NAKAHARA
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Publication number: 20230371849Abstract: 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.Type: ApplicationFiled: May 9, 2023Publication date: November 23, 2023Applicant: NEC CorporationInventors: Kazuki IHARA, Kenichiro FUKUSHI, Zhenwei WANG, Hiroshi KAJITANI, Fumiyuki NIHEY, Chenhui HUANG, Yoshitaka NOZAKI, Kentaro NAKAHARA
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Publication number: 20230368447Abstract: A knee trajectory information generation device which includes an acquisition unit that acquires walking data including time-series data of a foot position and a knee position of a subject, a first calculation unit that calculates a first movement route connecting a start point and an end point of a gait cycle by using time-series data of the foot position included in the walking data, a second calculation unit that calculates a second movement route corresponding to a trajectory of the knee position between the start point and the end point of the gait cycle by using time-series data of the knee position included in the walking data, an information generation unit that calculates a difference between the first movement route and the second movement route and generate knee trajectory information including visual information corresponding to the calculated difference, and an output unit that outputs the generated knee trajectory information.Type: ApplicationFiled: April 26, 2023Publication date: November 16, 2023Applicant: NEC CorporationInventors: Kazuki IHARA, Kenichiro FUKUSHI, Zhenwei WANG, Hiroshi KAJITANI, Fumiyuki NIHEY, Chenhui HUANG, Yoshitaka NOZAKI, Kentaro NAKAHARA
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Publication number: 20230329585Abstract: In order to estimate the degree of supination/pronation of a foot through a simple configuration, an estimation device comprises a detection unit for detecting the period of a stance end phase from time-series data of sensor data based on a physical quantity relating to foot movement measured by a sensor installed on a foot part, a feature quantity extraction unit for extracting a feature quantity from the angular waveform in the coronal plane during the period of the stance end phase, and an assessment unit for assessing the degree of supination/pronation of the foot using the feature quantity extracted from the angular waveform in the coronal plane.Type: ApplicationFiled: October 2, 2020Publication date: October 19, 2023Applicant: NEC CorporationInventors: Chenhui Huang, Kenichiro Fukushi, Zhenwei Wang, Hiroshi Kajitani, Fumiyuki Nihey, Kentaro Nakahara
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Publication number: 20230329586Abstract: Provided is a gait information generation device including an acquisition unit that acquires waist position information including time-series data of a waist position of a subject in a predetermined gait cycle, a waist oscillation calculation unit that calculates, for a plurality of gait phases included in the predetermined gait cycle, a waist oscillation corresponding to a distance between a reference line set for the time-series data of the waist position of the subject and the waist position in each of the plurality of gait phases, a gait information generation unit that generates gait information according to the waist oscillation calculated with respect to the predetermined gait cycle, and an output unit that outputs the generated gait information.Type: ApplicationFiled: March 31, 2023Publication date: October 19, 2023Applicant: NEC CorporationInventors: Zhenwei WANG, Kenichiro Fukushi, Kazuki Ihara, Kentaro Nakahara, Fumiyuki Nihey, Hiroshi Kajitani, Chenhui Huang, Yoshitaka Nozaki
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Publication number: 20230259595Abstract: Provided is an identification device for identifying an individual on the basis of gait irrespective of the type of footwear, the identification device comprising a detection unit that detects a walking event on the basis of a walking waveform of a user, a waveform processing unit that normalizes the walking waveform on the basis of the detected walking event and generates a normalized waveform, and an identification unit that identifies the user on the basis of the normalized waveform.Type: ApplicationFiled: July 22, 2020Publication date: August 17, 2023Applicant: NEC CorporationInventors: Chenhui Huang, Kenichiro Fukushi, Zhenwei Wang, Fumiyuki Nihey
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Publication number: 20230139218Abstract: A data processing device that includes a classification unit that classifies at least one piece of living-body information data into at least one group based on an attribute of at least one user, the at least one piece of living-body information data including a sensor value relating to a living body of the user, and a measurement time and a measurement position of the sensor value, and a learning unit that generates, for each of the group, a model for estimating interpolation data for interpolating a deficit of the living-body information data using a correlation among the sensor value included in the living-body information data, the measurement time, and the measurement position.Type: ApplicationFiled: April 16, 2020Publication date: May 4, 2023Applicant: NEC CorporationInventors: Kenichiro Fukushi, Chenhui Huang, Zhenwei Wang, Fumiyuki Nihey, Kentaro Nakahara
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Patent number: 11583804Abstract: A nanocarbon separation method includes a step of preparing a dispersion liquid having nanocarbons dispersed therein; a step of injecting a liquid including the dispersion liquid into an electrophoresis tank so that a pH of the liquid increases from a bottom to a top in a direction of gravitational force; and a step of applying a direct current to electrodes disposed in an upper part and a lower part of the electrophoresis tank.Type: GrantFiled: February 28, 2017Date of Patent: February 21, 2023Assignee: NEC CORPORATIONInventor: Fumiyuki Nihey
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Patent number: 11511229Abstract: A nanocarbon separation method includes: a step of preparing a plurality of liquids with different specific gravities in which at least one of the plurality of liquids is a dispersion liquid in which a mixture of nanocarbons with different properties is dispersed; a step of sequentially injecting the plurality of liquids into an electrophoresis tank so that the specific gravities of the liquids decrease from a bottom to a top of the liquids in a direction of gravitational force; and a step of separating the mixture of the nanocarbons by moving a part of the mixture toward an electrode side disposed in an upper part of the electrophoresis tank and moving a remainder of the mixture toward an electrode side disposed in a lower part of the electrophoresis tank by applying a direct current voltage to the electrodes.Type: GrantFiled: September 29, 2017Date of Patent: November 29, 2022Assignee: NEC CORPORATIONInventors: Fumiyuki Nihey, Hideaki Numata, Yuki Kuwahara, Takeshi Saito, Fusako Sasaki
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Patent number: 11485640Abstract: A single-walled carbon nanotube separation apparatus includes: a separation tank accommodating a single-walled carbon nanotube dispersion liquid containing: metallic single-walled carbon nanotubes; and semiconducting single-walled carbon nanotubes; a first electrode and a second electrode that are installed in the separation tank; and a partition wall installed between the first electrode and the second electrode in the separation tank and below the separation tank in a height direction thereof.Type: GrantFiled: February 28, 2017Date of Patent: November 1, 2022Assignee: NEC CORPORATIONInventor: Fumiyuki Nihey
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Patent number: 11383984Abstract: A nanocarbon separation device includes a separation tank which is configured to accommodate a dispersion liquid including a nanocarbon, a first electrode that is provided at an upper part in the separation tank, a second electrode that is provided at a lower part in the separation tank, and a partition member that is provided between the first electrode and the second electrode in the separation tank, and the partition member partitions the separation tank into a plurality of regions.Type: GrantFiled: October 10, 2017Date of Patent: July 12, 2022Assignee: NEC CORPORATIONInventors: Kazuki Ihara, Mayumi Kosaka, Ryota Yuge, Hideaki Numata, Fumiyuki Nihey
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Patent number: 11280725Abstract: A measurement device includes: a measurement unit which is configured to measure an absorption spectrum of a dispersion liquid in which nanocarbons are dispersed; a separation unit which is configured to separate an absorption spectrum of a dispersant from the absorption spectrum of the dispersion liquid; and a calculation unit which is configured to calculate a concentration of the dispersant from the absorption spectrum of the dispersant.Type: GrantFiled: September 29, 2017Date of Patent: March 22, 2022Assignee: NEC CORPORATIONInventor: Fumiyuki Nihey
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Publication number: 20200283296Abstract: A nanocarbon separation device includes a separation tank which is configured to accommodate a dispersion liquid including a nanocarbon, a first electrode that is provided at an upper part in the separation tank, a second electrode that is provided at a lower part in the separation tank, and a partition member that is provided between the first electrode and the second electrode in the separation tank, and the partition member partitions the separation tank into a plurality of regions.Type: ApplicationFiled: October 10, 2017Publication date: September 10, 2020Applicant: NEC CORPORATIONInventors: Kazuki IHARA, Mayumi KOSAKA, Ryota YUGE, Hideaki NUMATA, Fumiyuki NIHEY
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Publication number: 20200284718Abstract: A measurement device includes: a measurement unit which is configured to measure an absorption spectrum of a dispersion liquid in which nanocarbons are dispersed; a separation unit which is configured to separate an absorption spectrum of a dispersant from the absorption spectrum of the dispersion liquid; and a calculation unit which is configured to calculate a concentration of the dispersant from the absorption spectrum of the dispersant.Type: ApplicationFiled: September 29, 2017Publication date: September 10, 2020Applicant: NEC CORPORATIONInventor: Fumiyuki NIHEY
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Publication number: 20200277194Abstract: A nanocarbon separation method includes: preparing a nanocarbon dispersion liquid in which nanocarbons and a non-ionic surfactant are dispersed in a solvent; injecting the nanocarbon dispersion liquid into a separation tank; applying a direct current voltage to a first electrode provided at an upper part of the interior of the separation tank and a second electrode provided at a lower part of the interior of the separation tank and generating a pH gradient in the nanocarbon dispersion liquid inside the separation tank, and separating metallic nanocarbons and semiconductor nanocarbons included in the nanocarbon dispersion liquid.Type: ApplicationFiled: September 29, 2017Publication date: September 3, 2020Applicant: NEC CORPORATIONInventors: Fumiyuki NIHEY, Hideaki NUMATA
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Patent number: 10713930Abstract: In order to detect a behavioral state of an evacuee in a facility and provide, for an evacuee, an evacuation instruction according to the behavioral state, the present invention provides an evacuation guidance system including: a storage means; an analysis control means for acquiring pressure data generated by at least one pressure sensor installed on an evacuation route in a facility and storing the pressure data in the storage means, and also for comparing a plurality of pieces of the pressure data generated in a verification time period, analyzing a temporal change in the pressure data, and analyzing a state of a person located on the pressure sensor; and an evacuation instruction means for generating evacuation instruction information based on an analysis result of the analysis control means.Type: GrantFiled: September 18, 2019Date of Patent: July 14, 2020Assignee: NEC CORPORATIONInventors: Fumiyuki Nihey, Takashi Manako, Hiroyuki Endoh, Noriyuki Tonouchi
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Publication number: 20200108347Abstract: A nanocarbon separation method includes a step of preparing a dispersion liquid having nanocarbons dispersed therein; a step of injecting a liquid including the dispersion liquid into an electrophoresis tank so that a pH of the liquid increases from a bottom to a top in a direction of gravitational force; and a step of applying a direct current to electrodes disposed in an upper part and a lower part of the electrophoresis tank.Type: ApplicationFiled: February 28, 2017Publication date: April 9, 2020Applicant: NEC CorporationInventor: Fumiyuki NIHEY
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Publication number: 20200061540Abstract: A nanocarbon separation apparatus includes: an electrophoresis tank; electrodes disposed in an upper part and a lower part of the electrophoresis tank; a first injection port through which a liquid is injected into the electrophoresis tank; a second injection port which is provided below the first injection port and through which a liquid having a pH lower than a pH of the liquid injected through the first injection port is injected into the electrophoresis tank; and a recovery port provided in a surface facing a surface having the first injection port and the second injection port, wherein the liquid injected through at least one of the first injection port and the second injection port is a dispersion liquid having nanocarbons dispersed therein.Type: ApplicationFiled: February 28, 2017Publication date: February 27, 2020Applicant: NEC CORPORATIONInventors: Fumiyuki NIHEY, Yuki KUWAHARA, Takeshi SAITO, Fusako SASAKI
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Publication number: 20200047122Abstract: A nanocarbon separation method includes: a step of preparing a plurality of liquids with different specific gravities in which at least one of the plurality of liquids is a dispersion liquid in which a mixture of nanocarbons with different properties is dispersed; a step of sequentially injecting the plurality of liquids into an electrophoresis tank so that the specific gravities of the liquids decrease from a bottom to a top of the liquids in a direction of gravitational force; and a step of separating the mixture of the nanocarbons by moving a part of the mixture toward an electrode side disposed in an upper part of the electrophoresis tank and moving a remainder of the mixture toward an electrode side disposed in a lower part of the electrophoresis tank by applying a direct current voltage to the electrodes.Type: ApplicationFiled: September 29, 2017Publication date: February 13, 2020Applicant: NEC CORPORATIONInventors: Fumiyuki NIHEY, Hideaki NUMATA, Yuki KUWAHARA, Takeshi SAITO, Fusako SASAKI