Patents by Inventor Shinzou Oikawa

Shinzou Oikawa 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: 5061356
    Abstract: A vacuum treatment apparatus includes a vacuum chamber having a first treatment position and at least one second treatment position where a substrate supported on a substrate stage subjected to a vacuum treatment. A drive device is operatively connected to a holding device to drive the same so that the holding device can move the substrate stage between the first and second treatment positions. The drive device is also operable to drive the holding device so that the holding device can rotate the substrate stage about the axis thereof at the first treatment position. A rotating device is provided for rotating the substrate stage about the axis thereof when the substrate stage is disposed at the second treatment position.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: October 29, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Shigeru Tanaka, Eiji Setoyama, Shinzou Oikawa, Sigeki Yamamura
  • Patent number: 4911815
    Abstract: A magnetic film deposition chamber having Helmholtz coils and a preliminary chamber are connected through a gate valve. Two magnetic plates are fixed to the magnetic film deposition chamber near the both ends thereof. Substrates overlying apertures of a substrate holder are moved by a conveyer together with the substrate holder. The conveyor moves from the preliminary chamber to the film deposition chamber through the gate valve. The substrates then positioned over and between the magnetic plates and are located above the target in the magnetic film deposition chamber.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: March 27, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuhiro Kamei, Eiji Setoyama, Shinzou Oikawa