Patents by Inventor Takafumi Kato

Takafumi Kato 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).

  • Patent number: 11938429
    Abstract: The filter device includes a case, an element, and a water separator. The case accommodates the element and the water separator. The element removes solid particulates from the fuel. The element can be replaced by opening the case. The water separator removes water content from the fuel. The water separator is held in the case. The water separator is movable relative to the case. The water separator is movable within a movable range. The element and the water separator are provided with a passage connecting member for connecting a fuel passages.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: March 26, 2024
    Assignee: KYOSAN DENKI CO., LTD.
    Inventors: Takafumi Kato, Toshiaki Agui, Toshiyuki Yonemoto
  • Publication number: 20240084339
    Abstract: An object of the present invention is to provide a culture device capable of accurately detecting the gas-liquid interface of a culture solution in a fermenter. The above problem is solved by provided a culture device that includes: a liquid surface sensor for detecting a foam layer height from the bottom of the fermenter to the top of a foam layer; and a pressure sensor for detecting a liquid surface height from the bottom of the fermenter to a gas-liquid interface, the culture device having installed at least two pressure sensors below the gas-liquid interface, the at least two pressure sensors each being the pressure sensor.
    Type: Application
    Filed: January 20, 2022
    Publication date: March 14, 2024
    Applicant: KANEKA CORPORATION
    Inventors: Takafumi IGARI, Takahisa KATO, Masaru HIRANO
  • Patent number: 11926336
    Abstract: An electric suspension control, in a vehicle including an electric suspension apparatus driven with a motor, short-circuits the motor and limits a vehicle speed to a predetermined speed or less, in a case where an abnormality occurs in the electric suspension apparatus.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: March 12, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Ohno, Takafumi Kato, Tomoya Toyohira
  • Publication number: 20230228443
    Abstract: The derivation unit determines the stability of a parasympathetic nerve activity of the sleeper for each environment temperature, and derives a correspondence relationship between the environment temperature and the stability of the parasympathetic nerve activity of the sleeper. An estimation unit estimates an appropriate value of the environment temperature suitable for the sleeper based on the correspondence relationship derived by the derivation unit.
    Type: Application
    Filed: March 24, 2023
    Publication date: July 20, 2023
    Applicants: DAIKIN INDUSTRIES, LTD., OSAKA UNIVERSITY
    Inventors: Chiaki TSUBOI, Shouta HORI, Takafumi KATO, Mayo KAMIMURA
  • Patent number: 11618293
    Abstract: Included are an electromagnetic actuator which includes an electric motor configured to generate drive forces for a damping operation and a telescopic operation; an information acquirer which acquires a stroke velocity of the electromagnetic actuator; a drive force arithmetic part which includes a damping force calculator configured to calculate a target damping force and a telescopic force calculator configured to calculate a target telescopic force, and which obtains a target drive force based on the target damping force and the target telescopic force; and a drive controller which controls drive of the electric motor using the target drive force. The drive force arithmetic part includes an adjuster which performs an adjustment to reduce a telescopic control amount for the target telescopic force based on the stroke velocity acquired by the information acquirer.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: April 4, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Ohno, Takafumi Kato, Tomoya Toyohira, Atsuhiko Yoneda
  • Patent number: 11613152
    Abstract: An electric suspension apparatus includes electric actuators provided for a plurality of wheels, respectively, an acceleration sensor disposed in each of the electric actuators, the acceleration sensor detecting a first acceleration, and an electric suspension control ECU controlling each of the electric actuators based on the first acceleration, and the electric suspension control ECU decreases a control amount to the electric actuator, in a case where a first speed based on the first acceleration in an up-down direction is equal to or less than a predetermined speed.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: March 28, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tomoya Toyohira, Takafumi Kato
  • Publication number: 20220305870
    Abstract: An electric suspension apparatus includes electric actuators provided for a plurality of wheels, respectively, an acceleration sensor disposed in each of the electric actuators, the acceleration sensor detecting a first acceleration, and an electric suspension control ECU controlling each of the electric actuators based on the first acceleration, and the electric suspension control ECU decreases a control amount to the electric actuator, in a case where a first speed based on the first acceleration in an up-down direction is equal to or less than a predetermined speed.
    Type: Application
    Filed: February 18, 2022
    Publication date: September 29, 2022
    Inventors: Tomoya Toyohira, Takafumi Kato
  • Publication number: 20220306138
    Abstract: An electric suspension control, in a vehicle including an electric suspension apparatus driven with a motor, short-circuits the motor and limits a vehicle speed to a predetermined speed or less, in a case where an abnormality occurs in the electric suspension apparatus.
    Type: Application
    Filed: February 11, 2022
    Publication date: September 29, 2022
    Inventors: Satoshi Ohno, Takafumi Kato, Tomoya Toyohira
  • Publication number: 20220211972
    Abstract: An environment control device includes a determination unit and a supply unit. The determination unit determines the type of symptom that disturbs sleep of a sleeper. The supply unit supplies the sleeper with a stimulus that reduces the symptom, according to the type of the symptom, disturbing the sleep, determined by the determination unit. The symptom includes at least snoring, and the determination unit determines whether the snoring is due to nasal congestion or due to constriction of the throat.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., OSAKA UNIVERSITY
    Inventors: Chiaki TSUBOI, Satoshi HASHIMOTO, Shouta HORI, Takafumi KATO
  • Publication number: 20210379516
    Abstract: The filter device includes a case, an element, and a water separator. The case accommodates the element and the water separator. The element removes solid particulates from the fuel. The element can be replaced by opening the case. The water separator removes water content from the fuel. The water separator is held in the case. The water separator is movable relative to the case. The water separator is movable within a movable range. The element and the water separator are provided with a passage connecting member for connecting a fuel passages.
    Type: Application
    Filed: August 25, 2021
    Publication date: December 9, 2021
    Inventors: Takafumi KATO, Toshiaki AGUI, Toshiyuki YONEMOTO
  • Patent number: 11097587
    Abstract: The electromagnetic suspension apparatus includes: an electromagnetic actuator provided in parallel with a spring member between a vehicle body and a wheel of a vehicle and configured to generate driving force involving vibration damping of the vehicle body; an information acquisition unit configured to acquire, through a high-pass filter, time-series information about a stroke position of the electromagnetic actuator; and an ECU configured to calculate target driving force of the electromagnetic actuator and use the calculated target driving force to execute driving force control of the electromagnetic actuator.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: August 24, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tomoya Toyohira, Takafumi Kato, Satoshi Ohno, Atsuhiko Yoneda
  • Publication number: 20210008943
    Abstract: An electric suspension device, includes: an electromagnetic actuator which is arranged in parallel to a spring member provided between a body and a wheel of a vehicle and produces a drive force concerning damping operation and expansion-contraction operation; an information acquisition section which acquires roll velocity of the vehicle; a damping force calculation section which calculates a target damping force as a target value for the damping operation of the electromagnetic actuator; and an ECU which performs drive control for the electromagnetic actuator using a target drive force based on the calculated target damping force.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Inventors: Tomoya TOYOHIRA, Takafumi KATO, Atsuhiko YONEDA
  • Publication number: 20200330906
    Abstract: A filter device comprises a case and a filter element. The case has a fixed cylinder and a movable cylinder. The fixed cylinder and the movable cylinder provide a valve mechanism. A biasing member is arranged between the fixed cylinder and the movable cylinder. The filter element and the support cylinder are meshed with each other by a meshing mechanism. The meshing mechanism is provided by a movable cylinder meshing portion and a frame meshing portion. The meshing mechanism prevents rotation of the filter element with respect to the tightening direction.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Inventors: Takanori TSUNEKAWA, Fumiya KOMINE, Takafumi KATO, Akihiro KIMURA
  • Publication number: 20200307338
    Abstract: Included are an electromagnetic actuator which includes an electric motor configured to generate drive forces for a damping operation and a telescopic operation; an information acquirer which acquires a stroke velocity of the electromagnetic actuator; a drive force arithmetic part which includes a damping force calculator configured to calculate a target damping force and a telescopic force calculator configured to calculate a target telescopic force, and which obtains a target drive force based on the target damping force and the target telescopic force; and a drive controller which controls drive of the electric motor using the target drive force. The drive force arithmetic part includes an adjuster which performs an adjustment to reduce a telescopic control amount for the target telescopic force based on the stroke velocity acquired by the information acquirer.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Inventors: Satoshi OHNO, Takafumi KATO, Tomoya TOYOHIRA, Atsuhiko YONEDA
  • Patent number: 10752074
    Abstract: An electromagnetic suspension device includes: an electromagnetic actuator which is disposed side by side with a spring member provided between a body and a wheel of a vehicle and which produces a driving force for damping operation and extending and contracting operation; an information acquisition unit which acquires the stroke position of the electromagnetic actuator; and an ECU which sets a target damping force and a target stretching force and controls a driving force of the electromagnetic actuator by using a target driving force based on the set target damping force and target stretching force. When the stroke position acquired by the information acquisition unit is in an end region close to a stroke end, the ECU corrects the target driving force such that the stroke position shifts from the end region toward a neutral region.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 25, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Ohno, Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda
  • Patent number: 10744839
    Abstract: Provided is an electromagnetic suspension apparatus capable of achieving both of vibration isolation performance and road holding performance. The electromagnetic suspension apparatus includes an electromagnetic actuator, an information acquisition unit that acquires information on a stroke speed of the electromagnetic actuator and a state quantity of the vehicle, a plurality of filters in which individual gain characteristics are respectively set, a filter setting unit that selectively sets a filter having a gain characteristic suitable for the state quantity of the vehicle from among the plurality of filters, a filter processing unit that performs a filtering process on a stroke speed signal using the filter set by the filter setting unit, and a drive control unit that controls driving of the electromagnetic actuator based on relationship information between the stroke speed after the filtering process and a damping force corresponding to the stroke speed.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: August 18, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Ohno, Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda
  • Patent number: 10647172
    Abstract: An object of the present invention is to obtain an electromagnetic suspension apparatus capable of meeting a request to improve ride comfort irrespective of a magnitude of a spring constant preset in a spring member. The electromagnetic suspension apparatus includes an electromagnetic actuator that generates a driving force related to vibration damping of the vehicle body, an information acquisition unit that acquires information on a stroke position of the electromagnetic actuator, and an ECU that calculates a target driving force of the electromagnetic actuator and controls a driving force of the electromagnetic actuator using the calculated target driving force. When the stroke position acquired by the information acquisition unit is in a neutral range including a neutral position, the ECU corrects the target driving force so as to reduce a spring force related to the spring member as compared with when the stroke position is in a non-neutral range.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: May 12, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Ohno, Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda
  • Publication number: 20190366791
    Abstract: The electromagnetic suspension apparatus includes: an electromagnetic actuator provided in parallel with a spring member between a vehicle body and a wheel of a vehicle and configured to generate driving force involving vibration damping of the vehicle body; an information acquisition unit configured to acquire, through a high-pass filter, time-series information about a stroke position of the electromagnetic actuator; and an ECU configured to calculate target driving force of the electromagnetic actuator and use the calculated target driving force to execute driving force control of the electromagnetic actuator.
    Type: Application
    Filed: May 30, 2019
    Publication date: December 5, 2019
    Inventors: Tomoya TOYOHIRA, Takafumi KATO, Satoshi OHNO, Atsuhiko YONEDA
  • Patent number: 10471788
    Abstract: An object of the present invention is to obtain an electromagnetic suspension apparatus capable of quickly reducing an influence of a mechanical frictional force generated in each part of an electromagnetic actuator. The electromagnetic suspension apparatus includes an electromagnetic actuator that generates a driving force related to a damping operation and an expansion and contraction, an information acquisition unit that acquires vehicle state information including a stroke speed of the electromagnetic actuator, an equivalent frictional force calculation unit that calculates an equivalent frictional force of the electromagnetic actuator based on the vehicle state information, and an ECU that calculates a target driving force of the electromagnetic actuator and controls the driving force of the electromagnetic actuator using the calculated target driving force. The ECU corrects the target driving force based on the equivalent frictional force calculated by the equivalent frictional force calculation unit.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: November 12, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Ohno, Atsuhiko Yoneda, Takafumi Kato, Tomoya Toyohira
  • Patent number: 10457110
    Abstract: A vehicle suspension system (3) is provided that allows attention eliciting information such as rumble strips, bumps and road markers to be conveyed to the vehicle operator substantially without detracting from the performance of the vehicle suspension system. A control unit (10) determines if a prescribed warning condition exists according to vehicle information and/or road surface information acquired by an information acquiring unit, and performs a warning control including an extending and retracting movement of the actuator interposed between an sprung member (8) and an unsprung member (9) of the vehicle at a prescribed frequency when the warning condition is determined.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: October 29, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda