Patents by Inventor Tadasu Nagao

Tadasu Nagao 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: 4825497
    Abstract: A disc cleaner is disclosed. The disc cleaner includes a main casing, and a mounting structure located in the main casing to receive a disc to be cleaned. There is a lid operatively engaged with the main casing covering an upper surface of the main casing. A cleaner is mounted on an inner surface of the lid. A driving mechanism is located in the main casing. The driving mechanism is operated when the lid is positioned in a closed condition relative to the main casing. The driving mechanism is operatively connected to another mechanism for rotating and revolving the cleaner body to clean the disc.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: May 2, 1989
    Assignee: Kyushu Hitachi Maxell, Ltd.
    Inventors: Tadasu Nagao, Masaya Terayama, Kazuhiko Inoue
  • Patent number: 4618099
    Abstract: An electric spray including a spray casing having a grip formed with a recess, a tank mounted on the spray casing, a nozzle member fitted detachably into the recess and a slide switch mounted slidably on the grip. The spray casing accommodates a pump and a motor for driving the pump, while the slide switch is formed with a hollow for receiving the nozzle member so as to be at least partially exposed outwardly when the nozzle member has been received by the hollow.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: October 21, 1986
    Assignee: Kyushu Hitachi Maxell, Ltd.
    Inventors: Tadasu Nagao, Shigeharu Sayama