Patents by Inventor Noriyuki Bunkou

Noriyuki Bunkou 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).

  • Indoor and outdoor unit communication via signal from a power line
    Patent number: 7770403
    Abstract: An air conditioning system is arranged to use a power line for communication. The air conditioning system includes one or more indoor units, one or more outdoor units, and a system controller for controlling the indoor units or outdoor units and executes communications between the indoor units and the outdoor units as overlapping a signal on the power line for supplying electric power. The outdoor units are connected with the system controller through a leased communication line. The indoor unit provides a power line communication device being connected with the power line. The outdoor unit provides a leased communication device being connected with the leased communication line. A bridge is also provided for connecting the leased communication line and the power line. The control information is exchanged mutually between the indoor units, the outdoor units and the system controller through the power line.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: August 10, 2010
    Assignee: Hitachi Appliances, Inc.
    Inventors: Yasuyuki Kojima, Noboru Akiyama, Takeshi Onaka, Tatsumi Yamauchi, Koichi Taniguchi, Koichi Tokushige, Noriyuki Bunkou, Keiji Sato
  • INDOOR AND OUTDOOR UNIT COMMUNICATION VIA SIGNAL FROM A POWER LINE
    Publication number: 20090145147
    Abstract: An air conditioning system is arranged to use a power line for communication. The air conditioning system includes one or more indoor units, one or more outdoor units, and a system controller for controlling the indoor units or outdoor units and executes communications between the indoor units and the outdoor units as overlapping a signal on the power line for supplying electric power. The outdoor units are connected with the system controller through a leased communication line. The indoor unit provides a power line communication device being connected with the power line. The outdoor unit provides a leased communication device being connected with the leased communication line. A bridge is also provided for connecting the leased communication line and the power line. The control information is exchanged mutually between the indoor units, the outdoor units and the system controller through the power line.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 11, 2009
    Applicant: HITACHI APPLIANCES INC.
    Inventors: Yasuyuki Kojima, Noboru Akiyama, Takeshi Onaka, Tatsumi Yamauchi, Koichi Taniguchi, Koichi Tokushige, Noriyuki Bunkou, Keiji Sato
  • Indoor and outdoor unit communication via signal from a power line
    Patent number: 7523619
    Abstract: An air conditioning system is arranged to use a power line for communication. The air conditioning system includes one or more indoor units, one or more outdoor units, and a system controller for controlling the indoor units or outdoor units and executes communications between the indoor units and the outdoor units as overlapping a signal on the power line for supplying electric power. The outdoor units are connected with the system controller through a leased communication line. The indoor unit provides a power line communication device being connected with the power line. The outdoor unit provides a leased communication device being connected with the leased communication line. A bridge is also provided for connecting the leased communication line and the power line. The control information is exchanged mutually between the indoor units, the outdoor units and the system controller through the power line.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: April 28, 2009
    Assignee: Hitachi Appliances, Inc.
    Inventors: Yasuyuki Kojima, Noboru Akiyama, Takeshi Onaka, Tatsumi Yamauchi, Koichi Taniguchi, Koichi Tokushige, Noriyuki Bunkou, Keiji Sato
  • Air conditioning system
    Patent number: 6865898
    Abstract: An air-conditioning system having a plurality of air conditioners, each air conditioner including an outdoor transmission/receiving unit for transmitting by superposing the operation data on an outdoor power line for supplying power to an outdoor unit and receiving the operation data superposed on the outdoor power line, an indoor transmission/receiving unit for transmitting by superposing the operation data on an indoor power line for supplying power to an indoor unit and receiving the operation data superposed on the indoor power line, an outdoor conversion unit for transmitting by converting the operation data superposed on the outdoor power line into a signal and receiving and superposing the signal on the outdoor power line, and an indoor conversion unit for transmitting by converting the operation data superposed on the indoor power line into a signal and receiving and superposing the signal on the indoor power line.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: March 15, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiyukie Yamanashi, Keiji Satou, Masami Ozaki, Masamichi Mochizuki, Tatsuya Sugiyama, Noriyuki Bunkou
  • Air conditioning system
    Publication number: 20050005619
    Abstract: An air conditioning system is arranged to use a power line for communication. The air conditioning system includes one or more indoor units, one or more outdoor units, and a system controller for controlling the indoor units or outdoor units and executes communications between the indoor units and the outdoor units as overlapping a signal on the power line for supplying electric power. The outdoor units are connected with the system controller through a leased communication line. The indoor unit provides a power line communication device being connected with the power line. The outdoor unit provides a leased communication device being connected with the leased communication line. A bridge is also provided for connecting the leased communication line and the power line. The control information is exchanged mutually between the indoor units, the outdoor units and the system controller through the power line.
    Type: Application
    Filed: April 14, 2004
    Publication date: January 13, 2005
    Inventors: Yasuyuki Kojima, Noboru Akiyama, Takeshi Onaka, Tatsumi Yamauchi, Koichi Taniguchi, Koichi Tokushige, Noriyuki Bunkou, Keiji Sato
  • Air conditioning system
    Publication number: 20040010347
    Abstract: An air-conditioning system having a plurality of air conditioners, each air conditioner including an outdoor transmission/receiving unit for transmitting by superposing the operation data on an outdoor power line for supplying power to an outdoor unit and receiving the operation data superposed on the outdoor power line, an indoor transmission/receiving unit for transmitting by superposing the operation data on an indoor power line for supplying power to an indoor unit and receiving the operation data superposed on the indoor power line, an outdoor conversion unit for transmitting by converting the operation data superposed on the outdoor power line into a signal and receiving and superposing the signal on the outdoor power line, and an indoor conversion unit for transmitting by converting the operation data superposed on the indoor power line into a signal and receiving and superposing the signal on the indoor power line.
    Type: Application
    Filed: June 24, 2003
    Publication date: January 15, 2004
    Inventors: Yoshiyukie Yamanashi, Keiji Satou, Masami Ozaki, Masamichi Mochizuki, Tatsuya Sugiyama, Noriyuki Bunkou