Patents by Inventor Hideki Seki

Hideki Seki 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: 20250392164
    Abstract: A portable charging terminal includes a case, a power storage device, a charging interface, and a substrate. The case includes a power receiving wall and a charging wall. The power receiving wall and the charging wall define two planes of the case that face each other. The charging interface is configured to supply power from the power storage device to an external terminal. A power receiving antenna and a power receiving circuit are disposed on the substrate. The power storage device and the charging interface are arranged facing the charging wall. The substrate is arranged so that the power receiving antenna faces the power receiving wall. The power receiving antenna includes a circular polarized antenna element.
    Type: Application
    Filed: June 9, 2025
    Publication date: December 25, 2025
    Inventors: Tsubasa SUZUKI, Atsushi SUGIHARA, Hideki SEKI, Yuki TOKUYAMA, Tomokazu SAKAI, Shinichiro FUKI
  • Patent number: 12365218
    Abstract: A heater device includes a heat generating part that generates heat by energization, and a detection unit. The detection unit detects whether or not a distance between an object around the heat generating part and the heat generating part is equal to or less than a first detection distance with a first detection sensitivity, and whether or not the distance between the object around the heat generating part and the heat generating part is equal to or less than a second detection distance shorter than the first detection distance with a second detection sensitivity that is less sensitive than the first detection sensitivity.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: July 22, 2025
    Assignee: DENSO CORPORATION
    Inventors: Hideki Seki, Yusuke Tanaka, Kimitake Ishikawa
  • Patent number: 12331937
    Abstract: A heater device includes a first detection pattern that is arranged on an insulating substrate and detects a change in capacitance between a first transmitting electrode and a first receiving electrode for detecting an object, a second detection pattern that is arranged on the insulating substrate and detects the change in capacitance between a second transmitting electrode and a second receiving electrode for detecting the object, a capacitance determination unit that determines whether one of the change in capacitance between the first transmitting electrode and the first receiving electrode and the change in capacitance between the second transmitting electrode and the second receiving electrode is equal to or higher than a first threshold value and the other is lower than a second threshold value, and a disconnection determination unit that determines a disconnection in the first or the second detection pattern, when result of the capacitance determination unit is positive.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: June 17, 2025
    Assignee: DENSO CORPORATION
    Inventors: Kimitake Ishikawa, Yusuke Tanaka, Hideki Seki, Shuji Ito
  • Patent number: 12328800
    Abstract: A heater device for heating an user's body seated on a seat includes a heat generating portion that is arranged in a recess recessed from a surface of the seat, and generates heat by energization, a distance detection unit that detects a distance between an object around the heat generating portion and the heat generating portion, and a control unit that controls energization of the heat generating portion. A first control portion controls energization amount of the heat generating portion so that the output of the heat generating portion becomes equal to or higher than a predetermined output, when the distance is longer than an offset distance between the heat generating portion and the surface of the seat. A second control portion controls the energization amount so that the output becomes less than the predetermined output, when the distance is equal to or less than the offset distance.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: June 10, 2025
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Tanaka, Hideki Seki, Kimitake Ishikawa
  • Patent number: 12107438
    Abstract: A power receiving device includes a power receiving antenna, a rectifier circuit, and a bias circuit. The power receiving antenna is configured to receive radio waves for supplying power. The rectifier circuit includes a rectifier diode and is configured to convert radio waves received by the power receiving antenna into a DC power. The bias circuit is configured to apply a DC bias to the rectifier diode.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: October 1, 2024
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Hideki Seki, Shinichiro Fuki, Teppei Yamakoshi
  • Patent number: 12016793
    Abstract: A heating and cooling stimulation device includes a stimulation supply unit configured to supply hot stimulation and cold stimulation to a subject; an estimation unit configured to estimate a fatigue level of the subject; and a control unit configured to control an operation of the stimulation supply unit so as to supply the hot stimulation and the cold stimulation alternately to the subject in accordance with the fatigue level estimated by the estimation unit. The control unit controls the operation of the stimulation supply unit such that an amount of the cold stimulation received by the subject increases as the fatigue level estimated by the estimation unit becomes higher.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: June 25, 2024
    Assignee: DENSO CORPORATION
    Inventors: Takashi Matsuoka, Takuya Kataoka, Masaru Kakizaki, Taiji Kawachi, Yuuki Shimizu, Hideki Seki
  • Publication number: 20230283113
    Abstract: A power receiving device includes a power receiving antenna, a rectifier circuit, and a bias circuit. The power receiving antenna is configured to receive radio waves for supplying power. The rectifier circuit includes a rectifier diode and is configured to convert radio waves received by the power receiving antenna into a DC power. The bias circuit is configured to apply a DC bias to the rectifier diode.
    Type: Application
    Filed: February 22, 2023
    Publication date: September 7, 2023
    Inventors: Hideki SEKI, Shinichiro FUKI, Teppei YAMAKOSHI
  • Patent number: 11497084
    Abstract: A heater device includes a heat generation layer that has a heat generation portion configured to generate heat when energized, a pair of electrodes disposed on one side of the heat generation layer and being spaced from each other, a detection portion configured to generate an electric field between the pair of electrodes and detect an object around the pair of electrodes, and a controller configured to control the amount of electric power supplied to the heat generation portion based on a detection result by the detection portion.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: November 8, 2022
    Assignee: DENSO CORPORATION
    Inventors: Hideki Seki, Kimitake Ishikawa, Hirokazu Yamadaki, Yusuke Tanaka
  • Patent number: 11440375
    Abstract: A radiant heater device for generating a radiant heat, includes a substrate portion having a plate shape and made of an electrically insulating material, a surface member having a sheet shape and disposed on one surface side of the substrate portion, and a heat generation portion formed on the other surface side of the substrate portion. The surface member is formed of a fiber fabric that is provided with a space portion recessed toward the substrate portion in a thickness direction of the surface member and that restricts a heat transfer in a surface direction of the surface member by the space portion.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: September 13, 2022
    Assignee: DENSO CORPORATION
    Inventors: Hideki Seki, Kimitake Ishikawa, Hiroyasu Oide, Yusuke Tanaka
  • Patent number: 11440449
    Abstract: A seat air-conditioner includes an inlet portion, a blower, and a door device. The inlet portion is disposed inside a seat and defines a first inlet and a second inlet. The blower is disposed inside the seat. The door device is configured to be moved to open the first inlet while closing the second inlet and to close the first inlet while opening the second inlet. The first inlet is arranged such that an air drawn into the seat through a passenger supporting portion of the seat is drawn into the blower through the first inlet. The second inlet is arranged such that an air drawn into the seat through a portion of the seat other than the passenger supporting portion is more likely to be drawn into the second inlet than into the first inlet.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: September 13, 2022
    Assignee: DENSO CORPORATION
    Inventors: Hideki Seki, Masafumi Kawashima, Shuji Ito, Hironobu Murakami, Takahisa Fujii
  • Publication number: 20220218516
    Abstract: A heating and cooling stimulation device includes a stimulation supply unit configured to supply hot stimulation and cold stimulation to a subject; an estimation unit configured to estimate a fatigue level of the subject; and a control unit configured to control an operation of the stimulation supply unit so as to supply the hot stimulation and the cold stimulation alternately to the subject in accordance with the fatigue level estimated by the estimation unit. The control unit controls the operation of the stimulation supply unit such that an amount of the cold stimulation received by the subject increases as the fatigue level estimated by the estimation unit becomes higher.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Takashi MATSUOKA, Takuya KATAOKA, Masaru KAKIZAKI, Taiji KAWACHI, Yuuki SHIMIZU, Hideki SEKI
  • Patent number: 11382430
    Abstract: A heater device for warming a user has a heater panel including a planar heating element which generates heat by energization, a first heat radiation surface formed on one surface side of the heating element, and a second heat radiation surface formed on the other surface side of the heating element. The temperature of the first heat radiation surface is higher than the temperature of the second heat radiation surface. In the heater panel, the first heat radiation surface is configured as a non-contact heater that warms the user in a non-contact manner, and the second heat radiation surface is configured as a contact heater that warms the user in a contact manner.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: July 12, 2022
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Tanaka, Kimitake Ishikawa, Hiroyasu Oide, Hideki Seki
  • Publication number: 20220007464
    Abstract: A heater device for heating an user's body seated on a seat includes a heat generating portion that is arranged in a recess recessed from a surface of the seat, and generates heat by energization, a distance detection unit that detects a distance between an object around the heat generating portion and the heat generating portion, and a control unit that controls energization of the heat generating portion. A first control portion controls energization amount of the heat generating portion so that the output of the heat generating portion becomes equal to or higher than a predetermined output, when the distance is longer than an offset distance between the heat generating portion and the surface of the seat. A second control portion controls the energization amount so that the output becomes less than the predetermined output, when the distance is equal to or less than the offset distance.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 6, 2022
    Inventors: Yusuke TANAKA, Hideki SEKI, Kimitake ISHIKAWA
  • Publication number: 20220001720
    Abstract: A heater device includes a heat generating part that generates heat by energization, and a detection unit. The detection unit detects whether or not a distance between an object around the heat generating part and the heat generating part is equal to or less than a first detection distance with a first detection sensitivity, and whether or not the distance between the object around the heat generating part and the heat generating part is equal to or less than a second detection distance shorter than the first detection distance with a second detection sensitivity that is less sensitive than the first detection sensitivity.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 6, 2022
    Inventors: Hideki SEKI, Yusuke TANAKA, Kimitake ISHIKAWA
  • Publication number: 20210261025
    Abstract: A seat air-conditioner includes an inlet portion, a blower, and a door device. The inlet portion is disposed inside a seat and defines a first inlet and a second inlet. The blower is disposed inside the seat. The door device is configured to be moved to open the first inlet while closing the second inlet and to close the first inlet while opening the second inlet. The first inlet is arranged such that an air drawn into the seat through a passenger supporting portion of the seat is drawn into the blower through the first inlet. The second inlet is arranged such that an air drawn into the seat through a portion of the seat other than the passenger supporting portion is more likely to be drawn into the second inlet than into the first inlet.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Inventors: Hideki SEKI, Masafumi KAWASHIMA, Shuji ITO, Hironobu MURAKAMI, Takahisa FUJII
  • Patent number: 11077734
    Abstract: The air-conditioning control device is configured to control an air conditioner for a vehicle having a radiant heater and to output a cancel signal that allows an engine, which has been stopped in response to an idling stop control, to restart. The radiant heater is configured to generate radiant heat to heat an occupant in a compartment of the vehicle. The air conditioner is configured to heat an interior of the compartment using engine cooling water. The air-conditioning control device stops the engine in response to the idling stop control. The air-conditioning control device outputs a cancel signal allowing the engine to restart following the engine having been stopped such that an idling stop time is longer when the radiant heater is operated than when the radiant heater is not operated.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 3, 2021
    Assignee: DENSO CORPORATION
    Inventors: Kimitake Ishikawa, Hideaki Kako, Hiroyasu Oide, Hideki Seki, Yusuke Tanaka
  • Publication number: 20210140644
    Abstract: A heater device includes a first detection pattern that is arranged on an insulating substrate and detects a change in capacitance between a first transmitting electrode and a first receiving electrode for detecting an object, a second detection pattern that is arranged on the insulating substrate and detects the change in capacitance between a second transmitting electrode and a second receiving electrode for detecting the object, a capacitance determination unit that determines whether one of the change in capacitance between the first transmitting electrode and the first receiving electrode and the change in capacitance between the second transmitting electrode and the second receiving electrode is equal to or higher than a first threshold value and the other is lower than a second threshold value, and a disconnection determination unit that determines a disconnection in the first or the second detection pattern, when result of the capacitance determination unit is positive.
    Type: Application
    Filed: January 25, 2021
    Publication date: May 13, 2021
    Inventors: Kimitake ISHIKAWA, Yusuke TANAKA, Hideki SEKI, Shuji ITO
  • Patent number: 10960732
    Abstract: The heater device has a sheet shaped main body having a heat generating portion heated by energization and a radiating surface for radiating radiant heat toward a heating object by using heat in the heat generating portion, a plate shaped member arranged on an opposite side with respect to the radiating surface of the main body, and an air layer forming member for forming an air layer between the main body and the plate shaped member arranged on a side opposite to the radiating surface of the main body.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: March 30, 2021
    Assignee: DENSO CORPORATION
    Inventors: Hideki Seki, Kimitake Ishikawa, Hiroyasu Oide, Yuusuke Tanaka
  • Patent number: 10913328
    Abstract: The heater device is provided with a heater main body, and radiates radiant heat from the heater main body toward an object. The heater main body includes a sheet-like heat generating layer that generates heat and radiates the radiant heat, and a sheet-like heat insulating layer that is disposed on the side opposite to the object of the heat generating layer. The heat insulating layer has a sheet-like first layer having voids and a sheet-like second layer having voids arranged side by side in a thickness direction of the heat insulating layer with respect to the first layer. A porosity of the second layer is higher than that of the first layer.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: February 9, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Tanaka, Kimitake Ishikawa, Hiroyasu Oide, Hideki Seki
  • Publication number: 20200406712
    Abstract: A heater apparatus includes a heat generating unit, an outer surface, a temperature sensor and a detection unit. A first control portion of an electronic control unit controls temperature of the heat generating unit in such a way that it stops or reduces electric power supply to the heat generating unit, when it determines that an object has been brought into contact with a first region of the outer surface. A second control portion of the electronic control unit controls the temperature of the heat generating unit depending on a detected temperature of the temperature sensor. A third control portion of the electronic control unit controls the temperature of the heat generating unit in such a way that it stops or reduces the electric power supply to the heat generating unit, when it determines that the object has been brought into contact with a second region of the outer surface.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 31, 2020
    Inventors: Yusuke TANAKA, Kimitake ISHIKAWA, Hideki SEKI, Hirokazu YAMADAKI, Tatsushi DOMON