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: 11569689Abstract: A power receiving device is disposed underwater. The power receiving device includes a housing formed of a weak magnetic material, a ferromagnetic body that surrounds an outer side of the housing and is formed of a ferromagnetic material, and a power receiving coil wound around an outer side of the ferromagnetic body.Type: GrantFiled: June 7, 2019Date of Patent: January 31, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Ryosuke Hasaba, Kazuhiro Eguchi, Yoshio Koyanagi, Katsuya Okamoto, Souichi Kawata, Tatsuo Yagi
-
Publication number: 20220368162Abstract: A power transmission coil includes a plurality of coil members each of which having a length capable of surrounding at least one power reception device located under water from all directions and that are configured to wirelessly transmit power to the power reception device. Each of the plurality of coil members includes a polygonal pipe having a polygonal shape in which a plurality of straight pipes are welded, and a conductive wire that is inserted into the polygonal pipe and is wound a plurality of times.Type: ApplicationFiled: September 25, 2020Publication date: November 17, 2022Applicant: PANASONIC CORPORATIONInventors: Katsuya OKAMOTO, Shuichiro YAMAGUCHI, Souichi KAWATA
-
Patent number: 11502550Abstract: 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: GrantFiled: May 19, 2021Date of Patent: November 15, 2022Assignee: PANASONIC HOLDINGS CORPORATIONInventors: Katsuya Okamoto, Souichi Kawata, Kazuhiro Eguchi, Ryosuke Hasaba, Yoshio Koyanagi, Tamaki Ura
-
Publication number: 20210305846Abstract: A power receiving device is disposed underwater. The power receiving device includes a housing formed of a weak magnetic material, a ferromagnetic body that surrounds an outer side of the housing and is formed of a ferromagnetic material, and a power receiving coil wound around an outer side of the ferromagnetic body.Type: ApplicationFiled: June 7, 2019Publication date: September 30, 2021Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Ryosuke HASABA, Kazuhiro EGUCHI, Yoshio KOYANAGI, Katsuya OKAMOTO, Souichi KAWATA, Tatsuo YAGI
-
Patent number: 11128183Abstract: 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: GrantFiled: February 8, 2019Date of Patent: September 21, 2021Assignee: PANASONIC CORPORATIONInventors: Katsuya Okamoto, Souichi Kawata, Kazuhiro Eguchi, Yoshio Koyanagi, Ryosuke Hasaba
-
Publication number: 20210281328Abstract: 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: ApplicationFiled: March 8, 2021Publication date: September 9, 2021Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuhiro EGUCHI, Souichi KAWATA, Katsuya OKAMOTO, Yoshio KOYANAGI
-
Publication number: 20210273490Abstract: 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: ApplicationFiled: May 19, 2021Publication date: September 2, 2021Applicant: PANASONIC CORPORATIONInventors: Katsuya OKAMOTO, Souichi KAWATA, Kazuhiro EGUCHI, Ryosuke HASABA, Yoshio KOYANAGI, Tamaki URA
-
Patent number: 11031820Abstract: 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: GrantFiled: May 10, 2018Date of Patent: June 8, 2021Assignee: PANASONIC CORPORATIONInventors: Katsuya Okamoto, Souichi Kawata, Kazuhiro Eguchi, Ryosuke Hasaba, Yoshio Koyanagi, Tamaki Ura
-
Publication number: 20210166855Abstract: 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: ApplicationFiled: February 11, 2021Publication date: June 3, 2021Applicant: PANASONIC CORPORATIONInventors: Kazuhiro EGUCHI, Ryosuke HASABA, Katsuya OKAMOTO, Souichi KAWATA, Yoshio KOYANAGI
-
Patent number: 10965381Abstract: 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: GrantFiled: January 29, 2019Date of Patent: March 30, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuhiro Eguchi, Souichi Kawata, Katsuya Okamoto, Yoshio Koyanagi
-
Patent number: 10950379Abstract: 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: GrantFiled: March 8, 2018Date of Patent: March 16, 2021Assignee: PANASONIC CORPORATIONInventors: Kazuhiro Eguchi, Ryosuke Hasaba, Katsuya Okamoto, Souichi Kawata, Yoshio Koyanagi
-
Publication number: 20210006339Abstract: 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: ApplicationFiled: January 29, 2019Publication date: January 7, 2021Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuhiro EGUCHI, Souichi KAWATA, Katsuya OKAMOTO, Yoshio KOYANAGI
-
Patent number: 10862341Abstract: 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: GrantFiled: September 5, 2017Date of Patent: December 8, 2020Assignee: PANASONIC CORPORATIONInventors: Yoshio Koyanagi, Kazuhiro Eguchi, Souichi Kawata, Futoshi Deguchi, Katsuya Okamoto, Ryosuke Hasaba, Tamaki Ura
-
Publication number: 20200381162Abstract: 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: ApplicationFiled: March 8, 2018Publication date: December 3, 2020Applicant: PANASONIC CORPORATIONInventors: Kazuhiro EGUCHI, Ryosuke HASABA, Katsuya OKAMOTO, Souichi KAWATA, Yoshio KOYANAGI
-
Publication number: 20200321810Abstract: 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: ApplicationFiled: February 8, 2019Publication date: October 8, 2020Applicant: PANASONIC CORPORATIONInventors: Katsuya OKAMOTO, Souichi KAWATA, Kazuhiro EGUCHI, Yoshio KOYANAGI, Ryosuke HASABA
-
Patent number: 10790705Abstract: 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: GrantFiled: June 19, 2017Date of Patent: September 29, 2020Assignee: PANASONIC CORPORATIONInventors: Futoshi Deguchi, Souichi Kawata, Kazuhiro Eguchi, Katsuya Okamoto, Yoshio Koyanagi, Ryosuke Hasaba
-
Publication number: 20200169117Abstract: 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: ApplicationFiled: May 10, 2018Publication date: May 28, 2020Applicant: PANASONIC CORPORATIONInventors: Katsuya OKAMOTO, Souichi KAWATA, Kazuhiro EGUCHI, Ryosuke HASABA, Yoshio KOYANAGI, Tamaki URA
-
Publication number: 20190334380Abstract: 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: ApplicationFiled: September 5, 2017Publication date: October 31, 2019Applicant: PANASONIC CORPORATIONInventors: Yoshio KOYANAGI, Kazuhiro EGUCHI, Souichi KAWATA, Futoshi DEGUCHI, Katsuya OKAMOTO, Ryosuke HASABA, Tamaki URA
-
Publication number: 20190229557Abstract: 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: ApplicationFiled: June 19, 2017Publication date: July 25, 2019Applicant: PANASONIC CORPORATIONInventors: Futoshi DEGUCHI, Souichi KAWATA, Kazuhiro EGUCHI, Katsuya OKAMOTO, Yoshio KOYANAGI, Ryosuke HASABA
-
Patent number: 8422442Abstract: 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: GrantFiled: June 12, 2008Date of Patent: April 16, 2013Assignee: Panasonic CorporationInventors: Naoya Imahashi, Souichi Kawata