Patents by Inventor Souichi Kawata

Souichi Kawata 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: 11128183
    Abstract: An electric power transmission device transmits electric power to an electric power reception device including an electric power reception coil in water. The electric power transmission device includes one or more transmission coils which include an electric power transmission coil configured to transmit electric power to the electric power reception coil via a magnetic field, an electric power transmitter, configured to transmit AC power to the electric power transmission coil, a capacitor which is connected to the transmission coil and forms a resonance circuit which resonates with the transmission coil, a first tubular member which is waterproof and seals a periphery of the transmission coil, a second tubular member which surrounds the first tubular member and includes a plurality of holes, and an adjuster, configured to adjust an amount of air in a gap between the first tubular member and the second tubular member.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: September 21, 2021
    Assignee: PANASONIC CORPORATION
    Inventors: Katsuya Okamoto, Souichi Kawata, Kazuhiro Eguchi, Yoshio Koyanagi, Ryosuke Hasaba
  • Publication number: 20210281328
    Abstract: An underwater communication device is provided and adapted to communicate data in water with another underwater communication device including another coil. The underwater communication device includes a first coil configured to transmit data to and from the other coil via a magnetic field, a second coil configured to transmit the data to and from the other coil via a magnetic field, and a supply unit configured to supply the data to at least one of the first coil and the second coil. A coil surface of the first coil and a coil surface of the second coil overlap each other.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 9, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro EGUCHI, Souichi KAWATA, Katsuya OKAMOTO, Yoshio KOYANAGI
  • Publication number: 20210273490
    Abstract: A power transmitting device transmits power to a power receiving device having a power receiving coil in water. The power transmitting device includes a power transmitting coil configured to transmit the power to the power receiving coil via a magnetic field. The power transmitting device also includes a support member that supports the power transmitting coil, and one or more spacers that hold the transmitting coil and the support member.
    Type: Application
    Filed: May 19, 2021
    Publication date: September 2, 2021
    Applicant: PANASONIC CORPORATION
    Inventors: Katsuya OKAMOTO, Souichi KAWATA, Kazuhiro EGUCHI, Ryosuke HASABA, Yoshio KOYANAGI, Tamaki URA
  • Patent number: 11031820
    Abstract: A power transmitting device transmits power to a power receiving device having a power receiving coil, in water. The power transmitting device includes one or more annular transmitting coils including a power transmitting coil configured to transmit the power to the power receiving coil via a magnetic field, a support member located in an inner space of the transmitting coil, which is formed by the annular transmitting coil, the support member including an outer periphery along an inner periphery of the annular transmitting coil, and supporting the transmitting coil from the inner space, a power transmitting unit configured to supply A/C power to the power transmitting coil, and a capacitor connected to the transmitting coil, and forming a resonance circuit resonating together with the transmitting coil.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: June 8, 2021
    Assignee: PANASONIC CORPORATION
    Inventors: Katsuya Okamoto, Souichi Kawata, Kazuhiro Eguchi, Ryosuke Hasaba, Yoshio Koyanagi, Tamaki Ura
  • Publication number: 20210166855
    Abstract: A transmission coil configured to transmit electric power in water includes an annular electric wire through which an alternating current flows, and a first cover which includes non-conductive resin or non-magnetic resin and seals a periphery of the electric wire. The electric wire transmits the electric power via a magnetic field generated by flowing of the alternating current. The first cover includes a second cover which surrounds an outer peripheral surface of the electric wire in a radial direction with the non-conductive resin or the non-magnetic resin, and a self-bonding tape configured to seal an outer peripheral surface of the second cover.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Applicant: PANASONIC CORPORATION
    Inventors: Kazuhiro EGUCHI, Ryosuke HASABA, Katsuya OKAMOTO, Souichi KAWATA, Yoshio KOYANAGI
  • Patent number: 10965381
    Abstract: A underwater communication device communicates data with another underwater communication device having another first coil and another second coil in water. The underwater communication device includes a first coil configured to transmit the data to and from the other first coil via a magnetic field, a second coil configured to transmit the data to and from the other second coil via a magnetic field, a supply unit configured to supply the data to the first coil and the second coil, a first capacitor connected to the first coil and forming a first resonance circuit that resonates with the first coil at a first resonance frequency, and a second capacitor connected to the second coil and forming a second resonance circuit that resonates with the second coil at a second resonance frequency that is different from the first resonance frequency.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 30, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro Eguchi, Souichi Kawata, Katsuya Okamoto, Yoshio Koyanagi
  • Patent number: 10950379
    Abstract: Provided is a transmission coil which can inhibit reduction in transmission efficiency during underwater non-contact electric power transmission. A transmission coil configured to transmit electric power in water includes an annular electric wire through which an alternating current flows, and a first cover which includes non-conductive resin or non-magnetic resin and seals a periphery of the electric wire. The electric wire transmits the electric power via a magnetic field generated by flowing of the alternating current.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: March 16, 2021
    Assignee: PANASONIC CORPORATION
    Inventors: Kazuhiro Eguchi, Ryosuke Hasaba, Katsuya Okamoto, Souichi Kawata, Yoshio Koyanagi
  • Publication number: 20210006339
    Abstract: A underwater communication device communicates data with another underwater communication device having another first coil and another second coil in water. The underwater communication device includes a first coil configured to transmit the data to and from the other first coil via a magnetic field, a second coil configured to transmit the data to and from the other second coil via a magnetic field, a supply unit configured to supply the data to the first coil and the second coil, a first capacitor connected to the first coil and forming a first resonance circuit that resonates with the first coil at a first resonance frequency, and a second capacitor connected to the second coil and forming a second resonance circuit that resonates with the second coil at a second resonance frequency that is different from the first resonance frequency.
    Type: Application
    Filed: January 29, 2019
    Publication date: January 7, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro EGUCHI, Souichi KAWATA, Katsuya OKAMOTO, Yoshio KOYANAGI
  • Patent number: 10862341
    Abstract: An electric power transmission device capable of efficiently performing contactless electric power transmission to an underwater vehicle in water is provided. The electric power transmission device, which is an electric power transmission device transmitting electric power to an electric power reception device including an electric power reception coil in water, includes one or more transmission coils including an electric power transmission coil which transmits electric power to an electric power reception coil via a magnetic field, an electric power transmission unit which transmits AC power to an electric power transmission coil, a capacitor which is connected to the transmission coil and forms a resonant circuit which resonates with the transmission coil, and a buoyant body connected to at least one of the transmission coils.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: December 8, 2020
    Assignee: PANASONIC CORPORATION
    Inventors: Yoshio Koyanagi, Kazuhiro Eguchi, Souichi Kawata, Futoshi Deguchi, Katsuya Okamoto, Ryosuke Hasaba, Tamaki Ura
  • Publication number: 20200381162
    Abstract: Provided is a transmission coil which can inhibit reduction in transmission efficiency during underwater non-contact electric power transmission. A transmission coil configured to transmit electric power in water includes an annular electric wire through which an alternating current flows, and a first cover which includes non-conductive resin or non-magnetic resin and seals a periphery of the electric wire. The electric wire transmits the electric power via a magnetic field generated by flowing of the alternating current.
    Type: Application
    Filed: March 8, 2018
    Publication date: December 3, 2020
    Applicant: PANASONIC CORPORATION
    Inventors: Kazuhiro EGUCHI, Ryosuke HASABA, Katsuya OKAMOTO, Souichi KAWATA, Yoshio KOYANAGI
  • Publication number: 20200321810
    Abstract: An electric power transmission device transmits electric power to an electric power reception device including an electric power reception coil in water. The electric power transmission device includes one or more transmission coils which include an electric power transmission coil configured to transmit electric power to the electric power reception coil via a magnetic field, an electric power transmitter, configured to transmit AC power to the electric power transmission coil, a capacitor which is connected to the transmission coil and forms a resonance circuit which resonates with the transmission coil, a first tubular member which is waterproof and seals a periphery of the transmission coil, a second tubular member which surrounds the first tubular member and includes a plurality of holes, and an adjuster, configured to adjust an amount of air in a gap between the first tubular member and the second tubular member.
    Type: Application
    Filed: February 8, 2019
    Publication date: October 8, 2020
    Applicant: PANASONIC CORPORATION
    Inventors: Katsuya OKAMOTO, Souichi KAWATA, Kazuhiro EGUCHI, Yoshio KOYANAGI, Ryosuke HASABA
  • Patent number: 10790705
    Abstract: A power transmission device transmits power underwater to a power reception device including a power reception coil. The power transmission device includes: a power transmission coil that transmits power to the power reception coil through a magnetic field; a power transmitter that transmits an alternating current power having a predetermined frequency to the power transmission coil; and a first capacitor that is connected to the power transmission coil and forms a resonance circuit resonating with the power transmission coil. The predetermined frequency is a frequency between a first frequency at which a geometric mean value of a Q value of the power transmission coil and a Q value of the power reception coil are the maximum and a second frequency at which the Q value of the power transmission coil and the Q value of the power reception coil are the same.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: September 29, 2020
    Assignee: PANASONIC CORPORATION
    Inventors: Futoshi Deguchi, Souichi Kawata, Kazuhiro Eguchi, Katsuya Okamoto, Yoshio Koyanagi, Ryosuke Hasaba
  • Publication number: 20200169117
    Abstract: A power transmitting device transmits power tower power receiving device having a power receiving coil, in water. The power transmitting device includes one or more annular transmitting coils including a power transmitting coil configured to transmit the power to the power receiving coil via a magnetic field, a support member located in an inner space of the transmitting coil, which is formed by the annular transmitting coil, the support member including an outer periphery along an inner periphery of the annular transmitting coil, and supporting the transmitting coil from the inner space, a power transmitting unit configured to supply A/C power to the power transmitting coil, and a capacitor connected to the transmitting coil, and forming a resonance circuit resonating together with the transmitting coil.
    Type: Application
    Filed: May 10, 2018
    Publication date: May 28, 2020
    Applicant: PANASONIC CORPORATION
    Inventors: Katsuya OKAMOTO, Souichi KAWATA, Kazuhiro EGUCHI, Ryosuke HASABA, Yoshio KOYANAGI, Tamaki URA
  • Publication number: 20190334380
    Abstract: An electric power transmission device capable of efficiently performing contactless electric power transmission to an underwater vehicle in water is provided. The electric power transmission device, which is an electric power transmission device transmitting electric power to an electric power reception device including an electric power reception coil in water, includes one or more transmission coils including an electric power transmission coil which transmits electric power to an electric power reception coil via a magnetic field, an electric power transmission unit which transmits AC power to an electric power transmission coil, a capacitor which is connected to the transmission coil and forms a resonant circuit which resonates with the transmission coil, and a buoyant body connected to at least one of the transmission coils.
    Type: Application
    Filed: September 5, 2017
    Publication date: October 31, 2019
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshio KOYANAGI, Kazuhiro EGUCHI, Souichi KAWATA, Futoshi DEGUCHI, Katsuya OKAMOTO, Ryosuke HASABA, Tamaki URA
  • Publication number: 20190229557
    Abstract: A power transmission device transmits power underwater to a power reception device including a power reception coil. The power transmission device includes: a power transmission coil that transmits power to the power reception coil through a magnetic field; a power transmitter that transmits an alternating current power having a predetermined frequency to the power transmission coil; and a first capacitor that is connected to the power transmission coil and forms a resonance circuit resonating with the power transmission coil. The predetermined frequency is a frequency between a first frequency at which a geometric mean value of a Q value of the power transmission coil and a Q value of the power reception coil are the maximum and a second frequency at which the Q value of the power transmission coil and the Q value of the power reception coil are the same.
    Type: Application
    Filed: June 19, 2017
    Publication date: July 25, 2019
    Applicant: PANASONIC CORPORATION
    Inventors: Futoshi DEGUCHI, Souichi KAWATA, Kazuhiro EGUCHI, Katsuya OKAMOTO, Yoshio KOYANAGI, Ryosuke HASABA
  • Patent number: 8422442
    Abstract: There is provided a radio communication apparatus that performs communication in a plurality of different radio communication systems independently of one another and is capable of normally performing data communication with interference in the data communication avoided. The radio communication apparatus includes modems respectively corresponding to DECT communication and GSM communication respectively utilizing close frequency bands for transmitting/receiving data, and is configured so that communication time slots not used for time division multiplex domestic radio communication or for time division multiplex subscriber channel radio communication may be adjusted between the modems by a modern controller 208 for avoiding simultaneous communication timing.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: April 16, 2013
    Assignee: Panasonic Corporation
    Inventors: Naoya Imahashi, Souichi Kawata
  • Publication number: 20100183061
    Abstract: There is provided a radio communication apparatus that performs communication in a plurality of different radio communication systems independently of one another and is capable of normally performing data communication with interference in the data communication avoided. The radio communication apparatus includes modems respectively corresponding to DECT communication and GSM communication respectively utilizing close frequency bands for transmitting/receiving data, and is configured so that communication time slots not used for time division multiplex domestic radio communication or for time division multiplex subscriber channel radio communication may be adjusted between the modems by a modern controller 208 for avoiding simultaneous communication timing.
    Type: Application
    Filed: June 12, 2008
    Publication date: July 22, 2010
    Applicant: Panasonic Corporation
    Inventors: Naoya Imahashi, Souichi Kawata
  • Patent number: 7233994
    Abstract: The present invention relates to a network connection apparatus for connecting a plurality of network terminals to an external network such as the Internet. In accordance with the present invention, there provides an easy-to-use network connection apparatus capable of building up an easy and flexible network system by providing the user with plurality types of interface. Specifically, the network connection apparatus comprises a first interface unit including at least one physical layer for connecting to an external network, a second interface unit including a plurality of physical layers for connecting to an internal network, and a controller for controlling the first interface unit and the second interface unit, wherein the second interface unit is capable of independent operation from the first interface unit, and the controller transmits and receives information between the first interface unit and second interface unit, and between the second interface units.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: June 19, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Naoki Koga, Naoya Imahashi, Souichi Kawata, Mitsuhiro Koba, Tomiya Miyazaki, Tetsuya Tobeta, Hideyuki Furukawa, Shoichiro Kikuchi