Patents by Inventor Akira Takara

Akira Takara 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: 10637568
    Abstract: A transmission quality estimation system includes, three or more nodes and a transmission quality estimation device configured to estimate, transmission quality. A multi-core fiber having a plurality of cores, the multi-core fiber being used in at least a partial segment of a connection between the nodes. A node of the nodes includes a core connection unit configured to drop, add or relay light transmitted from, to or to each of to the plurality of cores of the multi-core fiber. The transmission quality estimation device includes an estimation unit configured to estimate transmission quality between the nodes on the basis of a transmission quality measurement light dropped by the core connection unit.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 28, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuya Oda, Tetsuro Inui, Akira Hirano, Wataru Imajuku, Shoukei Kobayashi, Takafumi Tanaka, Yutaka Miyamoto, Hidehiko Takara
  • Patent number: 10615868
    Abstract: A communication system which includes: three or more nodes; a multi-core fiber having a plurality of cores, the multi-core fiber being used in at least a partial segment of a connection between the nodes; a detection signal output unit configured to output a fault detection signal transmitted by the core provided in the multi-core fiber configured to connect together the nodes; and a fault detection unit configured to determine whether a fault has occurred between the nodes on the basis of a detection result of the fault detection signal.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 7, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuya Oda, Tetsuro Inui, Akira Hirano, Wataru Imajuku, Shoukei Kobayashi, Takafumi Tanaka, Yutaka Miyamoto, Hidehiko Takara
  • Patent number: 10527781
    Abstract: A communication system includes three or more nodes and a multi-core fiber having a plurality of cores, the multi-core fiber being used in at least a partial segment of the connection between the nodes is provided. One node of the nodes is connected to the multi-core fiber and includes a connector configured to add and drop a signal to and from an allocated core exclusively allocated from among the cores as a communication path between the one node and another node of the nodes and/or configured to relay a signal transmitted through another core of the cores allocated for communication between other nodes in the multi-core fiber connected to the one node, and a relative positional relationship between a connection position of the allocated core in which a signal is added or dropped in the connector and a connection position of another core in which a signal is relayed in the connector is the same for all of the nodes connected to the multi-core fiber.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: January 7, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuya Oda, Tetsuro Inui, Akira Hirano, Wataru Imajuku, Shoukei Kobayashi, Takafumi Tanaka, Yutaka Miyamoto, Hidehiko Takara
  • Patent number: 10511381
    Abstract: A communication system includes three or more nodes, and a multi-core fiber having a plurality of cores, the multi-core fiber being used in at least a partial segment of a connection between the nodes, wherein each of nodes includes: a fault information transmitting device configured to transmit fault information indicating that a fault has occurred in a communication path between one node and another node of the nodes when it is detected that it is not possible to perform communication between the one node and the another node; and a fault location specifying device configured to specify a section between nodes in which a fault has occurred on the basis of the fault information received from the fault information transmitting device provided in each of the nodes.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: December 17, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuya Oda, Tetsuro Inui, Akira Hirano, Wataru Imajuku, Shoukei Kobayashi, Takafumi Tanaka, Yutaka Miyamoto, Hidehiko Takara
  • Patent number: 9671055
    Abstract: To provide a vacuum heat insulating material having good heat insulating characteristics and capable of forming a corner part with high reliability. The vacuum heat insulating material includes a core material including an inorganic fiber assembly, and an outer covering member covering at least one surface of the core material, the inside of which is decompressed and sealed, in which the outer covering member includes an outermost resin layer and radiation prevention layers positioned inside the resin layer, in which the radiation prevention layers have an overlapping part where at least two or more radiation prevention layers are stacked at apart thereof.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 6, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yukio Nishikawa, Akira Takara
  • Publication number: 20160138750
    Abstract: To provide a vacuum heat insulating material having good heat insulating characteristics and capable of forming a corner part with high reliability. The vacuum heat insulating material includes a core material including an inorganic fiber assembly, and an outer covering member covering at least one surface of the core material, the inside of which is decompressed and sealed, in which the outer covering member includes an outermost resin layer and radiation prevention layers positioned inside the resin layer, in which the radiation prevention layers have an overlapping part where at least two or more radiation prevention layers are stacked at apart thereof.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 19, 2016
    Inventors: YUKIO NISHIKAWA, AKIRA TAKARA
  • Patent number: 9205331
    Abstract: An example mobile wireless handset includes a housing configured to be held in at least one hand of a user and a display disposed on the housing. A motion sensor is disposed in the housing and is configured to generate an output in response to movement of the handset. A communication interface is configured to wirelessly receive game data from a source external to the mobile wireless handset. The communication interface includes wireless telephone circuitry; a memory configured to store the received game data; and a processor configured to execute a gaming process including the game data and the output from the motion sensor.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: December 8, 2015
    Assignee: NINTENDO CO., LTD.
    Inventors: Iwao Masuyama, Toshiaki Suzuki, Akira Takara
  • Publication number: 20110312419
    Abstract: An example mobile wireless handset includes a housing configured to be held in at least one hand of a user and a display disposed on the housing. A motion sensor is disposed in the housing and is configured to generate an output in response to movement of the handset. A communication interface is configured to wirelessly receive game data from a source external to the mobile wireless handset. The communication interface includes wireless telephone circuitry; a memory configured to store the received game data; and a processor configured to execute a gaming process including the game data and the output from the motion sensor.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 22, 2011
    Applicant: NINTENDO CO., LTD.
    Inventors: Iwao MASUYAMA, Toshiaki Suzuki, Akira Takara
  • Publication number: 20070178974
    Abstract: A game system includes a housing to be held by a player. The housing incorporates an XY-axis acceleration sensor to detect an acceleration in an X-axis and Y-axis direction and a Z-axis contact switch to detect an acceleration in a Z-axis direction. These sensor and switch detect at least one of an amount (e.g. tilt amount, movement amount, impact amount or the like) and a direction (e.g. tilt direction, movement direction, impact direction or the like) of a change applied to the housing. A simulation program provides simulation such that a state of a game space is changed related to at least one of the amount and direction of the change applied to the housing.
    Type: Application
    Filed: March 30, 2007
    Publication date: August 2, 2007
    Inventors: Iwao Masuyama, Toshiaki Suzuki, Akira Takara
  • Patent number: 6913840
    Abstract: There is provided a magnesium alloy molded product being excellent in corrosion resistance. The magnesium alloy molded product being excellent in corrosion resistance and capable of being easily recycled is manufactured by forming an aluminum layer on a surface of a magnesium alloy molded body and then forming an anticorrosive film layer on the surface of the aluminum layer. In addition, a magnesium alloy molded product being excellent in corrosion resistance and having a brilliant anticorrosive structure is manufactured by forming a transparent anticorrosive film consisting of an organic acid amine salt on a cut surface of a magnesium alloy molded body and then forming a transparent painted film on the transparent anticorrosive film.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: July 5, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yukio Nishikawa, Akira Takara, Koji Matsunaga
  • Patent number: 6669900
    Abstract: There are provided a painted structure of a magnesium alloy molded product having an aesthetic appearance, a painting method of forming the patented structure of the magnesium alloy molded product having an aesthetic appearance, and a casing fabricated using the magnesium alloy molded product. The painted structure of the magnesium alloy molded product has flow marks of which maximum depth is 100 &mgr;m and maximum opening width is 0.5 mm. An anticorrosive film is formed on a surface of the magnesium alloy molded product, and a painted film having an average surface roughness of 10 &mgr;m or more and a thickness of 80 &mgr;m or more is formed on a surface of the anticorrosive film.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: December 30, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Matsunaga, Yukio Nishikawa, Naohiro Shikata, Mitsuharu Kamikawaji, Keizou Matsumura, Akira Takara
  • Publication number: 20030159797
    Abstract: A magnesium alloy cast, featuring with few casting defects, having precipitation areas dispersed inside magnesium alloy grains is provided by melting magnesium alloy material in an oxygen-free atmosphere and cooling the molten magnesium alloy at a cooling rate in the 1-20K/sec range by the continuous casting for solidification.
    Type: Application
    Filed: December 16, 2002
    Publication date: August 28, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koichi Yamasaki, Yukio Nishikawa, Akira Takara
  • Publication number: 20020069940
    Abstract: There are provided a painted structure of a magnesium alloy molded product having an aesthetic appearance, a painting method of forming the patented structure of the magnesium alloy molded product having an aesthetic appearance, and a casing fabricated using the magnesium alloy molded product. The painted structure of the magnesium alloy molded product has flow marks of which maximum depth is 100 &mgr;m and maximum opening width is 0.5 mm. An anticorrosive film is formed on a surface of the magnesium alloy molded product, and a painted film having an average surface roughness of 10 &mgr;m or more and a thickness of 80 &mgr;m or more is formed on a surface of the anticorrosive film.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 13, 2002
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Koji Matsunaga, Yukio Nishikawa, Naohiro Shikata, Mitsuharu Kamikawaji, Keizou Matsumura, Akira Takara
  • Publication number: 20020060062
    Abstract: There is provided a magnesium alloy molded product being excellent in corrosion resistance. The magnesium alloy molded product being excellent in corrosion resistance and capable of being easily recycled is manufactured by forming an aluminum layer on a surface of a magnesium alloy molded body and then forming an anticorrosive film layer on the surface of the aluminum layer. In addition, a magnesium alloy molded product being excellent in corrosion resistance and having a brilliant anticorrosive structure is manufactured by forming a transparent anticorrosive film consisting of an organic acid amine salt on a cut surface of a magnesium alloy molded body and then forming a transparent painted film on the transparent anticorrosive film.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 23, 2002
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Yukio Nishikawa, Akira Takara, Koji Matsunaga
  • Patent number: 5951266
    Abstract: An evacuating apparatus includes a first pump section disposed on a suction opening side, a second pump section for exhausting a smaller amount of gas than the first pump section, the second pump being disposed in an exhaust opening side, a plurality of rotors accommodated in a housing, bearings for supporting rotation of the rotors, a suction opening for drawing fluid and a first exhaust opening thereof both formed on the housing, and a plurality of motors for driving the rotors. In the apparatus, the first pump section is a pump of positive displacement type formed by utilizing a volume change of a space defined by the rotors and the housing, and the second pump section is a viscous-type pump formed by utilizing a relatively moving surface formed in a small gap defined between the rotors and the housing.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: September 14, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Maruyama, Akira Takara, Yoshikazu Abe, Yoshihiro Ikemoto
  • Patent number: 5836746
    Abstract: A positive displacement vacuum pump, in which a plurality of rotors are driven into synchronous operation by independent motors, uses a rotational position sensor making use of the electromagnetic induction effect for obtaining rotational position information for the individual shafts. The rotational position sensor is cooled.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: November 17, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Maruyama, Yoshikazu Abe, Akira Takara, Yoshihiro Ikemoto
  • Patent number: 5709537
    Abstract: An evacuating apparatus includes a first pump section disposed on a suction opening side, a second pump section for exhausting a smaller amount of gas than the first pump section, the second pump being disposed in an exhaust opening side, a plurality of rotors accommodated in a housing, bearings for supporting rotation of the rotors, a suction opening for drawing fluid and a first exhaust opening thereof both formed on the housing, and a plurality of motors for driving the rotors. In the apparatus, the first pump section is a pump of positive displacement type formed by utilizing a volume change of a space defined by the rotors and the housing, and the second pump section is a viscous-type pump formed by utilizing a relatively moving surface formed in a small gap defined between the rotors and the housing.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 20, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Maruyama, Akira Takara, Yoshikazu Abe, Yoshihiro Ikemoto
  • Patent number: 5564907
    Abstract: An evacuating apparatus includes a first pump section disposed on a suction opening side, a second pump section for exhausting a smaller amount of gas than the first pump section, the second pump being disposed in an exhaust opening side, a plurality of rotors accommodated in a housing, bearings for supporting rotation of the rotors, a suction opening for drawing fluid and a first exhaust opening thereof both formed on the housing, and a plurality of motors for driving the rotors. In the apparatus, the first pump section is a pump of positive displacement type formed by utilizing a volume change of a space defined by the rotors and the housing, and the second pump section is a viscous-type pump formed by utilizing a relatively moving surface formed in a small gap defined between the rotors and the housing.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: October 15, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Maruyama, Akira Takara, Yoshikazu Abe, Yoshihiro Ikemoto
  • Patent number: 5478210
    Abstract: A vacuum pump includes a plurality of rotors accommodated in a housing, a plurality of bearings for supporting the shafts of the rotors, respectively, a fluid-suction opening and a fluid-discharge opening formed in the housing, and a motor for driving at least one of the rotors. The pump has a first pump structure section for suction and discharge of gas, the pressure of which is in a viscous flow region, by utilizing change in volume of a space formed by the rotors and the housing. A second pump structure section is provided for transporting gas, a pressure of which is in an intermediate flow region, and gas, the pressure of which is lower than a pressure of the intermediate flow region, by utilizing movement of the space from a suction side to a discharge side of the second pump structure section.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: December 26, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Maruyama, Akira Takara
  • Patent number: 5449276
    Abstract: A fluid rotating apparatus includes a plurality of rotors accommodated in a housing, at least one of the rotors having its outer diameter different from that of the other of the rotors. Bearings are provided for supporting rotary shafts of the plurality of rotors. A fluid suction port and a fluid discharge port are formed in the housing. A motor is provides for rotating at least one of the plurality of rotors, and a control system for synchronously controlling the plurality of rotors in a contactless manner is provided for each rotary shaft of the plurality of rotors.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: September 12, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Teruo Maruyama, Akira Takara