Patents by Inventor Hirokazu Kadoi

Hirokazu Kadoi 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: 9673625
    Abstract: An uninterruptible power supply apparatus includes a power supply unit converting AC power to generate a DC voltage to be supplied to a loading device. The uninterruptible power supply apparatus further includes a first battery unit connected to the power supply unit to receive a DC current therefrom, and stores first DC power generated from the DC voltage. The first battery unit generates a DC voltage to be supplied to the loading device from the first DC power. The uninterruptible power supply apparatus includes a second battery unit connected in parallel to the power supply unit and stores second DC power, and generates, from the second DC power stored in the second battery unit, a DC voltage to be supplied to the loading device. The uninterruptible power supply apparatus further includes a controller for controlling operation of the power supply unit, the first battery unit and the second battery unit.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: June 6, 2017
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Ryuji Yamada, Kazuaki Mino, Ryuji Shimizu, Hirokazu Kadoi, Koji Kawaguchi
  • Publication number: 20150180233
    Abstract: An uninterruptible power supply apparatus includes a power supply unit converting AC power to generate a DC voltage to be supplied to a loading device. The uninterruptible power supply apparatus further includes a first battery unit connected to the power supply unit to receive a DC current therefrom, and stores first DC power generated from the DC voltage. The first battery unit generates a DC voltage to be supplied to the loading device from the first DC power. The uninterruptible power supply apparatus includes a second battery unit connected in parallel to the power supply unit and stores second DC power, and generates, from the second DC power stored in the second battery unit, a DC voltage to be supplied to the loading device. The uninterruptible power supply apparatus further includes a controller for controlling operation of the power supply unit, the first battery unit and the second battery unit.
    Type: Application
    Filed: March 9, 2015
    Publication date: June 25, 2015
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Ryuji YAMADA, Kazuaki MINO, Ryuji SHIMIZU, Hirokazu KADOI, Koji KAWAGUCHI
  • Publication number: 20100187908
    Abstract: There is provided a maintenance bypass device capable of achieving safety and efficiency in replacing work of a UPS. The maintenance bypass device (1) is equipped between a power supply (300) and a load device (400) and in parallel with an uninterruptible power supply unit (100), and supplies power from the power supply (300) to said load device (400) when the uninterruptible power supply unit (100) is being detached. In the maintenance bypass device (1), the connection portions (15, 16) of connecting wires (501, 502) connected to the uninterruptible power supply unit (100) are disposed on a front panel (2) disposed on the front side and are a connector type that enables the connection portions (15, 16) to be connected to and disconnected from the connection wires (501, 502) without using a tool.
    Type: Application
    Filed: May 20, 2008
    Publication date: July 29, 2010
    Inventors: Kouji Okano, Katsuhiko Nakane, Hiroyuki Shiina, Hirokazu Kadoi
  • Patent number: 7444208
    Abstract: Each of connection data 11, . . . , or 15, of the downstream side of a socket 1, . . . , or 5 or a panel board 6, 7, or 8 in a power supply direction, is generated in a tap 16, a UPS 25 and 35, or a terminal 24 or 34, and each of the connection data is transmitted to a electrical system wiring diagram generating terminal 36. Then, a wiring diagram is generated, based on connecting information 91 of the upstream side, which is registered in the generating terminal 36, and the plural connection data of the downstream sides.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: October 28, 2008
    Assignee: Densei-Lambda K.K.
    Inventors: Hirokazu Kadoi, Fujitaka Togashi, Akinori Miyazaki, Kazuhiko Takano
  • Patent number: 7181630
    Abstract: An Uninterrupted Power Supply (UPS) managing system is described for managing a plurality of small UPS devices, the small UPS device are connected to power supply routes between wall sockets and load devices. The UPS managing system comprises a plurality of lower controllers provided corresponding to each of small UPS devices or each of groups which is comprising at least two of said small UPS devices; a communication network for connecting a plurality of said lower controllers each other; and a higher controller connected to said communication network. In addition, each of said lower controllers generates connection information between each of its corresponding small UPS device(s) and each of load device(s) which is powered by said corresponding small UPS device(s), and transmits said connection information to said higher controller.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: February 20, 2007
    Assignee: Densei-Lambda K.K.
    Inventors: Hirokazu Kadoi, Fujitaka Togashi, Akinori Miyazaki, Kazuhiko Takano, Hiroyuki Oka
  • Publication number: 20040015340
    Abstract: Each of connection data 11, . . . , or 15, of the downstream side of a socket 1, . . . , or 5 or a panel board 6, 7, or 8 in a power supply direction, is generated in a tap 16, a UPS 25 and 35, or a terminal 24 or 34, and each of the connection data is transmitted to a electrical system wiring diagram generating terminal 36. Then, a wiring diagram is generated, based on connecting information 91 of the upstream side, which is registered in the generating terminal 36, and the plural connection data of the downstream sides.
    Type: Application
    Filed: April 14, 2003
    Publication date: January 22, 2004
    Inventors: Hirokazu Kadoi, Fujitaka Togashi, Akinori Miyazaki, Kazuhiko Takano
  • Publication number: 20030085624
    Abstract: An Uninterrupted Power Supply (UPS) managing system is described for managing a plurality of small UPS devices, the small UPS device are connected to power supply routes between wall sockets and load devices. The UPS managing system comprises a plurality of lower controllers provided corresponding to each of small UPS devices or each of groups which is comprising at least two of said small UPS devices; a communication network for connecting a plurality of said lower controllers each other; and a higher controller connected to said communication network. In addition, each of said lower controllers generates connection information between each of its corresponding small UPS device(s) and each of load device(s) which is powered by said corresponding small UPS device(s), and transmits said connection information to said higher controller.
    Type: Application
    Filed: October 23, 2002
    Publication date: May 8, 2003
    Applicant: Densei-Lambda K.K.
    Inventors: Hirokazu Kadoi, Fujitaka Togashi, Akinori Miyazaki, Kazuhiko Takano, Hiroyuki Oka