Patents by Inventor Hiroshi Kunii

Hiroshi Kunii 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).

  • Energy collecting system and method of operating the same
    Patent number: 7191610
    Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: March 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Energy collecting system and method of operating the same
    Patent number: 7174735
    Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: February 13, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Energy collecting system and method of operating the same
    Publication number: 20040187497
    Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.
    Type: Application
    Filed: April 8, 2004
    Publication date: September 30, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Energy collecting system and method of operating the same
    Publication number: 20040154325
    Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 12, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Energy collecting system and method of operating the same
    Patent number: 6698223
    Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 2, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Energy collecting system and method of operating the same
    Publication number: 20030131621
    Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.
    Type: Application
    Filed: August 30, 2002
    Publication date: July 17, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii