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).
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Patent number: 11938429Abstract: 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: GrantFiled: August 25, 2021Date of Patent: March 26, 2024Assignee: KYOSAN DENKI CO., LTD.Inventors: Takafumi Kato, Toshiaki Agui, Toshiyuki Yonemoto
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Publication number: 20240084339Abstract: 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: ApplicationFiled: January 20, 2022Publication date: March 14, 2024Applicant: KANEKA CORPORATIONInventors: Takafumi IGARI, Takahisa KATO, Masaru HIRANO
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Patent number: 11926336Abstract: 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: GrantFiled: February 11, 2022Date of Patent: March 12, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Satoshi Ohno, Takafumi Kato, Tomoya Toyohira
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Publication number: 20230228443Abstract: 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: ApplicationFiled: March 24, 2023Publication date: July 20, 2023Applicants: DAIKIN INDUSTRIES, LTD., OSAKA UNIVERSITYInventors: Chiaki TSUBOI, Shouta HORI, Takafumi KATO, Mayo KAMIMURA
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Patent number: 11618293Abstract: 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: GrantFiled: March 26, 2020Date of Patent: April 4, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Satoshi Ohno, Takafumi Kato, Tomoya Toyohira, Atsuhiko Yoneda
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Patent number: 11613152Abstract: 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: GrantFiled: February 18, 2022Date of Patent: March 28, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Tomoya Toyohira, Takafumi Kato
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Publication number: 20220305870Abstract: 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: ApplicationFiled: February 18, 2022Publication date: September 29, 2022Inventors: Tomoya Toyohira, Takafumi Kato
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Publication number: 20220306138Abstract: 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: ApplicationFiled: February 11, 2022Publication date: September 29, 2022Inventors: Satoshi Ohno, Takafumi Kato, Tomoya Toyohira
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Publication number: 20220211972Abstract: 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: ApplicationFiled: March 23, 2022Publication date: July 7, 2022Applicants: DAIKIN INDUSTRIES, LTD., OSAKA UNIVERSITYInventors: Chiaki TSUBOI, Satoshi HASHIMOTO, Shouta HORI, Takafumi KATO
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Publication number: 20210379516Abstract: 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: ApplicationFiled: August 25, 2021Publication date: December 9, 2021Inventors: Takafumi KATO, Toshiaki AGUI, Toshiyuki YONEMOTO
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Patent number: 11097587Abstract: 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: GrantFiled: May 30, 2019Date of Patent: August 24, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Tomoya Toyohira, Takafumi Kato, Satoshi Ohno, Atsuhiko Yoneda
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Publication number: 20210008943Abstract: 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: ApplicationFiled: July 10, 2020Publication date: January 14, 2021Inventors: Tomoya TOYOHIRA, Takafumi KATO, Atsuhiko YONEDA
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Publication number: 20200330906Abstract: 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: ApplicationFiled: July 6, 2020Publication date: October 22, 2020Inventors: Takanori TSUNEKAWA, Fumiya KOMINE, Takafumi KATO, Akihiro KIMURA
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Publication number: 20200307338Abstract: 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: ApplicationFiled: March 26, 2020Publication date: October 1, 2020Inventors: Satoshi OHNO, Takafumi KATO, Tomoya TOYOHIRA, Atsuhiko YONEDA
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Patent number: 10752074Abstract: 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: GrantFiled: April 16, 2018Date of Patent: August 25, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Satoshi Ohno, Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda
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Patent number: 10744839Abstract: 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: GrantFiled: May 14, 2018Date of Patent: August 18, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Satoshi Ohno, Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda
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Patent number: 10647172Abstract: 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: GrantFiled: June 12, 2018Date of Patent: May 12, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Satoshi Ohno, Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda
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Publication number: 20190366791Abstract: 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: ApplicationFiled: May 30, 2019Publication date: December 5, 2019Inventors: Tomoya TOYOHIRA, Takafumi KATO, Satoshi OHNO, Atsuhiko YONEDA
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Patent number: 10471788Abstract: 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: GrantFiled: June 12, 2018Date of Patent: November 12, 2019Assignee: HONDA MOTOR CO., LTD.Inventors: Satoshi Ohno, Atsuhiko Yoneda, Takafumi Kato, Tomoya Toyohira
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Patent number: 10457110Abstract: 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: GrantFiled: May 15, 2017Date of Patent: October 29, 2019Assignee: Honda Motor Co., Ltd.Inventors: Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda