Patents by Inventor Jiro Hashidume

Jiro Hashidume 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).

  • Recording device
    Patent number: 9305585
    Abstract: The present invention provides a recording device that offers a large displacement control effect. The recording device includes a recording medium 224, a motor 222 that drives the recording medium, and a recording device head M1 that records and reproduces a signal to and from the recording medium. The recording device also has a displacement control mechanism M2. The displacement control mechanism M2 includes a vibrating plate 226 that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in the rotation axis direction of the recording medium; and an oscillator 232 that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: April 5, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Jiro Hashidume, Yoshiaki Yamauchi
  • Recording Device
    Publication number: 20150228299
    Abstract: The present invention provides a recording device that offers a large displacement control effect. The recording device includes a recording medium 224, a motor 222 that drives the recording medium, and a recording device head M1 that records and reproduces a signal to and from the recording medium. The recording device also has a displacement control mechanism M2. The displacement control mechanism M2 includes a vibrating plate 226 that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in the rotation axis direction of the recording medium; and an oscillator 232 that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate.
    Type: Application
    Filed: September 6, 2012
    Publication date: August 13, 2015
    Inventors: Jiro Hashidume, Yoshiaki Yamauchi