Patents by Inventor Kenichi Okubo

Kenichi Okubo 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).

  • Publication number: 20030201250
    Abstract: To reduce the size of a gas-insulated switch for the purpose of utilizing the space of a power station or substation effectively and improving the economy thereof. A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein the breakage of the moving contact is operated with a single shock absorber in both the breaking action and the closing action of the moving contact. As a result that use of the gas-insulated switch according to the present invention improves the overall energy efficiency of components, a device with further reduced driving energy can be realized for a gas-insulated switch of the same specification.
    Type: Application
    Filed: April 29, 2003
    Publication date: October 30, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Hideo Kawamoto, Kenichi Okubo, Tetsu Ishiguro
  • Publication number: 20030015499
    Abstract: To reduce the size of a gas-insulated switch for the purpose of utilizing the space of a power station or substation effectively and improving the economy thereof. A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein the breakage of the moving contact is operated with a single shock absorber in both the breaking action and the closing action of the moving contact. As a result that use of the gas-insulated switch according to the present invention improves the overall energy efficiency of components, a device with further reduced driving energy can be realized for a gas-insulated switch of the same specification.
    Type: Application
    Filed: April 8, 2002
    Publication date: January 23, 2003
    Inventors: Hideo Kawamoto, Kenichi Okubo, Tetsu Ishiguro
  • Patent number: 6507770
    Abstract: A system for successively extracting unprocessed substrates from a cassette, successively conveying the extracted substrates to a plurality of processing units, causing the processing units to process the substrates, and successively returning processed substrates to a cassette is disclosed. In the system, corresponding to a recipe that contains process conditions for each of at least one lot, a process start prediction time at which processes of each lot start and a process completion prediction time at which processes for each lot are completed are calculated for at least two processes. Corresponding to the process start prediction time and the process completion prediction time, at least one of optimum processing units that optimize processes for each lot is selected for each lot.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: January 14, 2003
    Assignee: Tokyo Electron Limited
    Inventors: Masanori Tateyama, Kenichi Okubo, Jun Ookura
  • Publication number: 20010051837
    Abstract: A system for successively extracting unprocessed substrates from a cassette, successively conveying the extracted substrates to a plurality of processing units, causing the processing units to process the substrates, and successively returning processed substrates to a cassette is disclosed. In the system, corresponding to a recipe that contains process conditions for each of at least one lot, a process start prediction time at which processes of each lot start and a process completion prediction time at which processes for each lot are completed are calculated for at least two processes. Corresponding to the process start prediction time and the process completion prediction time, at least one of optimum processing units that optimize processes for each lot is selected for each lot.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 13, 2001
    Inventors: Masanori Tateyama, Kenichi Okubo, Jun Ookura