Patents by Inventor Kenichi Fujiwara

Kenichi Fujiwara 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).

  • Publication number: 20240123776
    Abstract: A tire assembly includes a tire for mounting on a vehicle, an elastic body disposed on an inner side of the tire, and a power generation body disposed between an inner surface of the tire and the elastic body. The power generation body includes a first member and a second member. The first member has a first insulating film forming a first surface. The second member has a second insulating film forming a second surface that faces the first surface and contacts the first surface. The elastic body biases the power generation body toward the inner surface of the tire.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 18, 2024
    Applicants: Sumitomo Rubber Industries, Ltd., The School Corporation Kansai University
    Inventors: Mutsuki SUGIMOTO, Hiroshi TANI, Kenichi KURODA, Takahiro FUJIWARA, Kyota SUGIOKA
  • Patent number: 11957475
    Abstract: A biometric information processing device (1) includes a brain wave detecting unit (10), a control unit (20), and a movement assisting unit (30). The brain wave detecting unit (10) detects biometric information in at least one brain region from among a plurality of brain regions that are selectable in accordance with a body part that is a target of function recovery or function improvement. The control unit (20) determines, based on the detected biometric information, at least one activity state in the brain including the location of the brain region(s) that is (are) activated in a subject while attempting to move the body part, and an activation level of such activated brain region(s). When the control unit (20) determines that the at least one activated state of the brain satisfies a predetermined condition, the movement assisting unit (30) executes a predetermined motion to assist movement of the body part.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: April 16, 2024
    Assignee: KEIO UNIVERSITY
    Inventors: Junichi Ushiba, Fumio Liu, Kenichi Takasaki, Atsuko Nishimoto, Miho Hiramoto, Katsuhiro Mizuno, Meigen Liu, Toshiyuki Fujiwara
  • Patent number: 11921162
    Abstract: According to one embodiment, the information processing device includes: a first state estimator configured to estimate a state of a target rechargeable battery based on: first data including a charge amount and voltage value of a rechargeable battery; information including a state of the rechargeable battery; and second data including a charge amount and voltage value of the rechargeable battery.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: March 5, 2024
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hisaaki Hatano, Takahiro Yamamoto, Kohei Maruchi, Kenichi Fujiwara, Masatake Sakuma
  • Patent number: 11911821
    Abstract: A compressed powder body comprises metal particles and an interposed substance which is interposed between the metal particles. Each of the metal particles is made of FeSiAl-based soft magnetic alloy and has a flat shape when seen along a predetermined direction. The metal particles include one or more of the metal particles each of which is formed with one or more predetermined holes. Each of the predetermined holes passes through the metal particle in the predetermined direction. Each of the predetermined holes has a maximum width in a predetermined plane perpendicular to the predetermined direction the maximum width being equal to or larger than a thickness of the metal particle with the predetermined hole in the predetermined direction.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: February 27, 2024
    Assignee: TOKIN CORPORATION
    Inventors: Mariko Fujiwara, Kaori Ohdaira, Chieko Fujimoto, Kenichi Chatani
  • Patent number: 11592202
    Abstract: According to one embodiment, a control device for an air conditioner which is communicably connected to first and second terminal devices to be used by first and second users is provided. The control device includes a processor. The processor configured to receive a first personal set temperature which is a temperature set by the first user by operating the first terminal device, receive a second personal set temperature which is a temperature set by the second user by operating the second terminal device, and determine a set value of the air conditioner based on the first personal set temperature and the second personal set temperature.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 28, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoshi Otsuki, Kenichi Fujiwara, Miho Sako
  • Patent number: 11466885
    Abstract: According to one embodiment, an air-conditioning control device includes model storage and a processor. The model storage is configured to store a discomfort probability model which estimates a value of discomfort of an occupant by a pair of time elapsed after an energy-saving operation of an air conditioner is turned on and before the energy-saving operation is turned off by the occupant, and an air-conditioning state at the time when the energy-saving operation is turned off. The processor is configured to acquire a current air-conditioning state during the energy-saving operation of the air conditioner, and turn off the energy-saving operation, based on occupant's discomfort estimated from the discomfort probability model.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: October 11, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Carrier Corporation
    Inventors: Kenichi Fujiwara, Satoko Sugisaki
  • Patent number: 11410059
    Abstract: A bias estimation apparatus according to an embodiment estimates a bias included in a measured values by each sensor. The bias estimation apparatus includes a reference model builder, a temporary bias generator, a corrected measured value calculator, a similarity calculator, a similarity selector, a score calculator, and an estimated bias determiner. The reference model builder builds a reference model of the measured value packs. The temporary bias generator generates a temporary bias pack. The corrected measured value calculator calculates corrected measured value packs. The similarity calculator calculates a similarity of each corrected measured value pack. The similarity selector selects a part of the similarities according to their values from among the similarities. The score calculator calculates a score based on the selected similarities. The estimated bias determiner determines an estimated bias which is an estimated value of the bias based on the score.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: August 9, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takuro Moriyama, Hideyuki Aisu, Hisaaki Hatano, Kenichi Fujiwara
  • Patent number: 11300625
    Abstract: According to one embodiment, an evaluation device for an energy storage device includes first processing circuitry and second processing circuitry. The first processing circuitry acquires data items including an amount of charge and a voltage value measured in a measurement period from the energy storage device, the energy storage device being charge-discharge-controlled according to charge-discharge command values. The second processing circuitry generates a representative data item of voltage values for amounts of charge, based on the data items acquired for the measurement period; and evaluates a degradation state of the energy storage device, based on a relative change between a plurality of the representative data items corresponding to a plurality of the measurement periods.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: April 12, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Takahiro Yamamoto, Hisaaki Hatano, Kenichi Fujiwara, Masatake Sakuma, Kaoru Koiwa, Yasuhiro Ogura, Takenori Kobayashi, Kenji Mitsumoto
  • Patent number: 11274848
    Abstract: According to one embodiment, a terminal device used by a user in an indoor space in which an air conditioner is installed includes a processor. The processor is configured to input position information indicating a position of the user in the indoor space, input first bodily sensation information indicating an air conditioning state felt by the user, and output the input position information and the input first bodily sensation information to an external device.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 15, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenichi Fujiwara, Tomoshi Otsuki, Miho Sako, Takahiro Yamamoto, Eiichi Sunagawa, Shusaku Tsuge
  • Patent number: 11221367
    Abstract: According to one embodiment, an evaluation device includes first processing circuitry and second processing circuitry. The first processing circuitry calculates a feature value of an energy storage device based on voltage values measured from the energy storage device being subjected to charge-discharge-control according to charge-discharge command values. The second processing circuitry derives an evaluation function of a degradation state of the energy storage device according to a difference between a distribution of the charge-discharge command values and a reference distribution. The second processing circuitry evaluates the degradation state of the energy storage device, based on the evaluation function and the calculated feature value.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: January 11, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takahiro Yamamoto, Hisaaki Hatano, Masatake Sakuma, Kenichi Fujiwara, Takenori Kobayashi, Tomohiro Toyosaki, Yoshiyuki Sakamoto
  • Publication number: 20210405120
    Abstract: According to one embodiment, the information processing device includes: a first state estimator configured to estimate a state of a target rechargeable battery based on: first data includes a charge amount and voltage value of a rechargeable battery; information including a state of the rechargeable battery; and second data including a charge amount and voltage value of the rechargeable battery.
    Type: Application
    Filed: September 8, 2021
    Publication date: December 30, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hisaaki HATANO, Takahiro YAMAMOTO, Kohei MARUCHI, Kenichi FUJIWARA, Masatake SAKUMA
  • Patent number: 11099240
    Abstract: According to one embodiment, a device for evaluating an energy storage device includes first processing circuitry and second processing circuitry. The first processing circuitry detects a plurality of times at which an amount of charge of the energy storage device satisfies a threshold condition, based on measurement data on the energy storage device in operation, selects a plurality of time intervals, calculates a charge-discharge efficiency in each of the time intervals based on charge-discharge command values belonging to the time interval, and divides a set of the charge-discharge efficiencies into a plurality of clusters and generates characteristic information on the clusters based on at least one of the measurement data and the charge-discharge command values. The second processing circuitry generates output data for displaying: transition data indicating transition of the charge-discharge efficiency belonging to the cluster; and characteristic information on the cluster.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: August 24, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Hisaaki Hatano, Takahiro Yamamoto, Kenichi Fujiwara, Masatake Sakuma, Takenori Kobayashi, Yasuhiro Ogura, Kenji Mitsumoto
  • Publication number: 20210190363
    Abstract: According to one embodiment, a control device for an air conditioner which is communicably connected to first and second terminal devices to be used by first and second users is provided. The control device includes a processor. The processor configured to receive a first personal set temperature which is a temperature set by the first user by operating the first terminal device, receive a second personal set temperature which is a temperature set by the second user by operating the second terminal device, and determine a set value of the air conditioner based on the first personal set temperature and the second personal set temperature.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 24, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoshi OTSUKI, Kenichi FUJIWARA, Miho SAKO
  • Publication number: 20210178927
    Abstract: There is provided a rechargeable battery evaluation device including: a charging controller configured to switch charging current of a rechargeable battery being charged with first current to second current; and a first state estimator configured to estimate a state of the rechargeable battery based on a feature of change in at least one of a voltage and a charging amount of the rechargeable battery due to switching from the charging current to the second current.
    Type: Application
    Filed: February 26, 2021
    Publication date: June 17, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takahiro YAMAMOTO, Kaoru KOIWA, Hisaaki HATANO, Kenichi FUJIWARA, Kohei MARUCHI, Koji TAKAZAWA, Yoshiyuki ISOZAKI, Shun EGUSA, Tomokazu MORITA
  • Publication number: 20200233037
    Abstract: According to one embodiment, an evaluation device for an energy storage device includes first processing circuitry and second processing circuitry. The first processing circuitry acquires data items including an amount of charge and a voltage value measured in a measurement period from the energy storage device, the energy storage device being charge-discharge-controlled according to charge-discharge command values. The second processing circuitry generates a representative data item of voltage values for amounts of charge, based on the data items acquired for the measurement period; and evaluates a degradation state of the energy storage device, based on a relative change between a plurality of the representative data items corresponding to a plurality of the measurement periods.
    Type: Application
    Filed: September 11, 2019
    Publication date: July 23, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Takahiro YAMAMOTO, Hisaaki Tatano, Kenichi Fujiwara, Masatake Sakuma, Kaoru Koiwa, Yasuhiro Ogura, Takenori Kobayashi, Kenji Mitsumoto
  • Publication number: 20200217896
    Abstract: According to one embodiment, a device for evaluating an energy storage device includes first processing circuitry and second processing circuitry. The first processing circuitry detects a plurality of times at which an amount of charge of the energy storage device satisfies a threshold condition, based on measurement data on the energy storage device in operation, selects a plurality of time intervals, calculates a charge-discharge efficiency in each of the time intervals based on charge-discharge command values belonging to the time interval, and divides a set of the charge-discharge efficiencies into a plurality of clusters and generates characteristic information on the clusters based on at least one of the measurement data and the charge-discharge command values. The second processing circuitry generates output data for displaying: transition data indicating transition of the charge-discharge efficiency belonging to the cluster; and characteristic information on the cluster.
    Type: Application
    Filed: September 11, 2019
    Publication date: July 9, 2020
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Hisaaki Hatano, Takahiro Yamamoto, Kenichi Fujiwara, Masatake Sakuma, Takenori Kobayashi, Yasuhiro Ogura, Kenji Mitsumoto
  • Publication number: 20200208863
    Abstract: According to one embodiment, an air-conditioning control device includes model storage and a processor. The model storage is configured to store a discomfort probability model which estimates a value of discomfort of an occupant by a pair of time elapsed after an energy-saving operation of an air conditioner is turned on and before the energy-saving operation is turned off by the occupant, and an air-conditioning state at the time when the energy-saving operation is turned off. The processor is configured to acquire a current air-conditioning state during the energy-saving operation of the air conditioner, and turn off the energy-saving operation, based on occupant's discomfort estimated from the discomfort probability model.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 2, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Carrier Corporation
    Inventors: Kenichi FUJIWARA, Satoko SUGISAKI
  • Patent number: 10641512
    Abstract: An air-conditioning operation condition generation apparatus as an aspect of the present invention generates trial conditions for multiple air conditioners associated with a target space of air-conditioning control, evaluates a trial performed by coordination of the plurality of air conditioners under the trial conditions, and generates actual operation conditions for the plurality of air conditioners to achieve a targeted state in the target space on the basis of evaluation of the trial.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: May 5, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoshi Otsuki, Kenichi Fujiwara, Mamiko Abe, Takahiro Yamamoto
  • Patent number: 10627265
    Abstract: In one embodiment, a sensor assignment apparatus includes a measured value storage, a generator, a calculator, and a selector. The measured value storage stores measured values of a plurality of sensors. The generator generates combinations of sensors and arguments of a function to diagnose sensors by assigning sensors to its arguments. The calculator calculates evaluation values which are based on the function values. The function values are obtained by applying diagnostic functions to measured values for all combinations generated by the generator. The selector selects at least one combination from the resulting set of the generator by considering the evaluation values of combinations calculated by the calculator.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 21, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenichi Fujiwara, Hideyuki Aisu, Hisaaki Hatano
  • Publication number: 20200072487
    Abstract: According to one embodiment, a terminal device used by a user in an indoor space in which an air conditioner is installed includes a processor. The processor is configured to input position information indicating a position of the user in the indoor space, input first bodily sensation information indicating an air conditioning state felt by the user, and output the input position information and the input first bodily sensation information to an external device.
    Type: Application
    Filed: March 13, 2019
    Publication date: March 5, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenichi FUJIWARA, Tomoshi Otsuki, Miho Sako, Takahiro Yamamoto, Eiichi Sunagawa, Shusaku Tsuge