Patents by Inventor Yo Yanagida

Yo Yanagida 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: 10312739
    Abstract: A non-contact power transmission device includes a resonance coil and a resonance capacitor, and includes impedance variable circuits the impedance of which can be changed. In the non-contact power transmission device, a power transmission side controller changes impedance of one of the impedance variable circuits, a power reception side controller changes impedance of the other one of the impedance variable circuits, and output impedance on a power supply side with respect to a power transmission coil unit and input impedance on a load side with respect to the power transmission coil unit are matched.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: June 4, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Takahiro Nakahara, Takashi Shiroki, Yo Yanagida, Antony Wambugu Ngahu, Keisuke Ueta
  • Patent number: 10056788
    Abstract: A wireless transmission device includes a coil that generates a magnetic field, and a resonant power storage element module electrically connected with the coil, capable of accumulating electric power, and constitutes a resonance circuit corresponding to a power transmission frequency in cooperation with the coil when transmitting the electric power via the coil. The resonant power storage element module includes a substrate with which a first electric wire and a second electric wire larger in an amount of heat generation than the first electric wire at the time of energization are connected, and a plurality of power storage elements mounted on the substrate. A distance between the power storage elements adjacent to each other on a side of a connection portion connected with the second electric wire in the substrate is larger than that on a side of a connection portion connected with the first electric wire in the substrate.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: August 21, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Yo Yanagida, Takahiro Nakahara, Antony Wambugu Ngahu
  • Publication number: 20170288463
    Abstract: A non-contact power transmission device includes a resonance coil and a resonance capacitor, and includes impedance variable circuits the impedance of which can be changed. In the non-contact power transmission device, a power transmission side controller changes impedance of one of the impedance variable circuits, a power reception side controller changes impedance of the other one of the impedance variable circuits, and output impedance on a power supply side with respect to a power transmission coil unit and input impedance on a load side with respect to the power transmission coil unit are matched.
    Type: Application
    Filed: March 23, 2017
    Publication date: October 5, 2017
    Inventors: Takahiro Nakahara, Takashi Shiroki, Yo Yanagida, Antony Wambugu Ngahu, Keisuke Ueta
  • Publication number: 20170149288
    Abstract: A wireless transmission device includes a coil that generates a magnetic field, and a resonant power storage element module electrically connected with the coil, capable of accumulating electric power, and constitutes a resonance circuit corresponding to a power transmission frequency in cooperation with the coil when transmitting the electric power via the coil. The resonant power storage element module includes a substrate with which a first electric wire and a second electric wire larger in an amount of heat generation than the first electric wire at the time of energization are connected, and a plurality of power storage elements mounted on the substrate. A distance between the power storage elements adjacent to each other on a side of a connection portion connected with the second electric wire in the substrate is larger than that on a side of a connection portion connected with the first electric wire in the substrate.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 25, 2017
    Inventors: Yo YANAGIDA, Takahiro NAKAHARA, Antony WAMBUGU NGAHU
  • Patent number: 7852206
    Abstract: Plural communication areas are provided, and plural electronic control units for mutually making communication in each of the communication areas are provided. A vehicular power line communication system includes a power line coupling the respective communication areas to one another, branch power lines coupling the respective electronic control units in each of the communication areas to one another, and a battery for supplying electric power to the electronic control units through the power line and the branch power lines. The power line is formed of a +B line turning to a positive polarity and a ground line turning to a negative polarity, which are cabled to be spaced from each other in a part of the power line. The branch power lines superpose communication data thereon, thereby making data communication.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: December 14, 2010
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Patent number: 7460934
    Abstract: A power line communication system includes a master ECU for supplying electric power, a plurality of slave ECUS and a plurality of power-supply lines connecting the slave ECUS to the master ECU respectively. The power-supply lines including at least one first power-supply line on which a control signal is superimposed and at least one second power-supply line on which no control signal is superimposed. The control signal is superimposed on the first power-supply line by the master ECU and also communicated between the master ECU and the slave ECUS connected to the first power-supply line. Impedance per unit length of the first power-supply line is set smaller than impedance per unit length of the second power-supply line.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: December 2, 2008
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Terumitsu Sugimoto
  • Publication number: 20080252429
    Abstract: Plural communication areas are provided, and plural electronic control units for mutually making communication in each of the communication areas are provided. A vehicular power line communication system includes a power line coupling the respective communication areas to one another, branch power lines coupling the respective electronic control units in each of the communication areas to one another, and a battery for supplying electric power to the electronic control units through the power line and the branch power lines. The power line is formed of a +B line turning to a positive polarity and a ground line turning to a negative polarity, which are cabled to be spaced from each other in a part of the power line. The branch power lines superpose communication data thereon, thereby making data communication.
    Type: Application
    Filed: June 10, 2008
    Publication date: October 16, 2008
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawakmura, Terumitsu Sugimoto
  • Patent number: 7423519
    Abstract: Plural communication areas are provided, and plural electronic control units for mutually making communication in each of the communication areas are provided. A vehicular power line communication system includes a power line coupling the respective communication areas to one another, branch power lines coupling the respective electronic control units in each of the communication areas to one another, and a battery for supplying electric power to the electronic control units through the power line and the branch power lines. The power line is formed of a +B line turning to a positive polarity and a ground line turning to a negative polarity, which are cabled to be spaced from each other in a part of the power line. The branch power lines superpose communication data thereon, thereby making data communication.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: September 9, 2008
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Patent number: 7352282
    Abstract: A communication system includes a power line, a plurality of PLC networks connected to the power line in common, and an electronic control unit for controlling an electric equipment, connected to the power line between the PLC networks. The electronic control unit includes a bypass capacitor that attenuates a communication signal transmitting over the power line.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: April 1, 2008
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Patent number: 7349347
    Abstract: An ASK communication device includes a master station and slave stations connected to the master station through a bus line. The master station includes a transmission unit for ASK-modulating a carrier signal outputted from an oscillation circuit owned thereby and outputting, to a bus line, ID signals of the respective stations and data transmitted to the respective slave stations in a case of transmitting the data from the master station, and outputting the ID signal of the slave station as a transmission source and the carrier signal to the bus line in a case of transmitting the data from the slave station, and a master-side reception unit for receiving, through the bus line, the data transmitted from the slave station. The at least one slave station includes a slave-side reception unit for receiving the data transmitted from the master station and other slave stations, and an attenuation unit for attenuating and ASK-modulating the carrier signal outputted from the master station to the bus line.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: March 25, 2008
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Patent number: 7315236
    Abstract: An ECU monitoring device includes a monitoring ECU connected to a power line for supplying power from a main battery to an immobilizer ECU. The monitoring ECU includes a high-frequency signal generating circuit for superimposing a high-frequency signal on the power line, a high-frequency signal detecting circuit for detecting the high-frequency signal superimposed on the power line and a CPU for judging a connection between the power line and the immobilizer ECU or between the power line and a false instrument. With the constitution, the ECU monitoring device can detect a situation that the immobilizer ECU is detached from a vehicle with high accuracy, preventing the vehicle from being stolen by theft.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: January 1, 2008
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Patent number: 7315234
    Abstract: A load control apparatus is connected to a master station through a power line supplied with direct-current power. The load control apparatus is driven by the direct-current power supplied from the power line to communicate with the master station through the power line. The load control apparatus includes a PLC part, first and second branch lines, connected to the power line, an impedance element connected to only the second branch line, a motor connected to only the first branch line, a condenser connected in parallel with the motor, the condenser having a capacitance resonating with an inductance component of the motor and frequency of the communication signal, a control part configured to perform a variety of processes, based on the communication signal received by the communication part communicating with the master station, and a circuit power part connected to the second branch line through the impedance element and configured to supply the PLC part and the control part with the desired power.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: January 1, 2008
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Terumitsu Sugimoto
  • Patent number: 7307519
    Abstract: A communication system includes a main power line and a plurality of PLC networks connected to the main power line in common. At least one of the PLC networks includes a plurality of nodes. One node of the nodes in the PLC network is connected to the main power line. The other nodes are interconnected via a sub power line so as to receive power from the main power line through the one node. An inductor provided in the one node is connected to the main power line and the sub power line.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: December 11, 2007
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Patent number: 7286044
    Abstract: A power line communication device for a vehicle is provided with an internal electronic control unit connected to a connection point on a power line, which communicates with an external electronic control unit by a communication signal superimposed on a supply voltage applied to the power line, and an impedance element inserted between the connection point and an external load. The impedance element suppresses attenuation of the communication signal.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: October 23, 2007
    Assignee: Yazaki Corporation
    Inventors: Yo Yanagida, Terumitsu Sugimoto
  • Publication number: 20070014339
    Abstract: A data communication system includes a fist transceiver and a second transceiver. The first transceiver includes a first main clock generator that generates a first main clock, a first receiver that receives a signal transmitted from the second transceiver, a regulation signal generator that generates a regulation signal based on the received signal, and a first transmitter that transmits the regulation signal to the second transceiver. The second transceiver includes a second main clock generator that generates a second main clock, a second transmitter that transmits the signal to the first transceiver, a second receiver that receives the regulation signal from the first transceiver, and a regulator that regulates the main clock frequency of the second main clock generator so as to match with a main clock frequency of the first main clock generator based on the regulation signal.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 18, 2007
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Publication number: 20070013492
    Abstract: A communication system includes a main power line and a plurality of PLC networks connected to the main power line in common. At least one of the PLC networks includes a plurality of nodes. One node of the nodes in the PLC network is connected to the main power line. The other nodes are interconnected via a sub power line so as to receive power from the main power line through the one node. An inductor provided in the one node is connected to the main power line and the sub power line.
    Type: Application
    Filed: July 12, 2005
    Publication date: January 18, 2007
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Publication number: 20070013490
    Abstract: A communication system includes a power line, a plurality of PLC networks connected to the power line in common, and an electronic control unit for controlling an electric equipment, connected to the power line between the PLC networks. The electronic control unit includes a bypass capacitor that attenuates a communication signal transmitting over the power line.
    Type: Application
    Filed: July 12, 2005
    Publication date: January 18, 2007
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto
  • Publication number: 20060224278
    Abstract: A power line communication system includes a master ECU for supplying electric power, a plurality of slave ECUS and a plurality of power-supply lines connecting the slave ECUS to the master ECU respectively. The power-supply lines including at least one first power-supply line on which a control signal is superimposed and at least one second power-supply line on which no control signal is superimposed. The control signal is superimposed on the first power-supply line by the master ECU and also communicated between the master ECU and the slave ECUS connected to the first power-supply line. Impedance per unit length of the first power-supply line is set smaller than impedance per unit length of the second power-supply line.
    Type: Application
    Filed: March 9, 2006
    Publication date: October 5, 2006
    Inventors: Yo Yanagida, Terumitsu Sugimoto
  • Publication number: 20060220800
    Abstract: A load control apparatus is connected to a master station through a power line supplied with direct-current power. The load control apparatus is driven by the direct-current power supplied from the power line to communicate with the master station through the power line. The load control apparatus includes a PLC part, first and second branch lines, connected to the power line, an impedance element connected to only the second branch line, a motor connected to only the first branch line, a condenser connected in parallel with the motor, the condenser having a capacitance resonating with an inductance component of the motor and frequency of the communication signal, a control part configured to perform a variety of processes, based on the communication signal received by the communication part communicating with the master station, and a circuit power part connected to the second branch line through the impedance element and configured to supply the PLC part and the control part with the desired power.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 5, 2006
    Inventors: Yo Yanagida, Terumitsu Sugimoto
  • Publication number: 20060038445
    Abstract: Plural communication areas are provided, and plural electronic control units for mutually making communication in each of the communication areas are provided. A vehicular power line communication system includes a power line coupling the respective communication areas to one another, branch power lines coupling the respective electronic control units in each of the communication areas to one another, and a battery for supplying electric power to the electronic control units through the power line and the branch power lines. The power line is formed of a +B line turning to a positive polarity and a ground line turning to a negative polarity, which are cabled to be spaced from each other in a part of the power line. The branch power lines superpose communication data thereon, thereby making data communication.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 23, 2006
    Inventors: Yo Yanagida, Naoyuki Shiraishi, Atsushi Kawamura, Terumitsu Sugimoto