Patents by Inventor Takayuki Kashiwa

Takayuki Kashiwa 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).

  • Gas-insulated switchgear device
    Patent number: 7414827
    Abstract: Disclosed is a gas-insulated switchgear device, in which a space for dismantlement and inspection work which facilitates the dismantlement and inspection work of circuit breakers at the time of the occurrence of accidents of the circuit breakers are provided and an installation area for the gas-insulated switchgear device can be reduced. The gas-insulated switchgear device includes a pair of spaced apart main bus lines, three circuit breakers connected between the main bus lines, a common space for dismantlement and inspection work provided between two of the three circuit breakers, and branch bus lines provided above the common dismantlement and inspection work space using the common dismantlement and inspection work space and disposed in such a manner that insulatedly leading-out directions of the branch bus lines cross in order to balance voltage.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: August 19, 2008
    Assignee: Japan AE Power Systems Corporation
    Inventors: Takayuki Kashiwa, Ryoichi Shinohara, Takeru Yamamoto, Yoshiro Suzuki
  • GAS-INSULATED SWITCHGEAR DEVICE
    Publication number: 20070153449
    Abstract: Disclosed is a gas-insulated switchgear device, in which a space for dismantlement and inspection work which facilitates the dismantlement and inspection work of circuit breakers at the time of the occurrence of accidents of the circuit breakers are provided and an installation area for the gas-insulated switchgear device can be reduced. The gas-insulated switchgear device includes a pair of spaced apart main bus lines, three circuit breakers connected between the main bus lines, a common space for dismantlement and inspection work provided between two of the three circuit breakers, and branch bus lines provided above the common dismantlement and inspection work space using the common dismantlement and inspection work space and disposed in such a manner that insulatedly leading-out directions of the branch bus lines cross in order to balance voltage.
    Type: Application
    Filed: December 26, 2006
    Publication date: July 5, 2007
    Inventors: Takayuki KASHIWA, Ryoichi Shinohara, Takeru Yamamoto, Yoshiro Suzuki