Patents Assigned to Jun Naruse
  • Vibration reducing head suspension mechanism for a magnetic disc unit
    Patent number: 7755865
    Abstract: There is provided a head suspension mechanism capable of more effectively restraining sway mode and second-order torsion mode vibrations of the head suspension mechanism caused by an air flow. A flange portion having a free end portion 23c on the base part side is formed at both edges close to the tip end of a suspension main frame 23, and at the same time, an elastic material 23d is provided in the free end portion 23c. Also, a sway mode dynamic vibration absorber is formed by the length of the flange portion and the damping effect of the elastic material 23d.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: July 13, 2010
    Assignee: Jun Naruse
    Inventors: Kyosuke Ono, Hirotaka Shinada
  • VIBRATION REDUCING HEAD SUSPENSION MECHANISM FOR A MAGNETIC DISC UNIT
    Publication number: 20090316305
    Abstract: There is provided a head suspension mechanism capable of more effectively restraining sway mode and second-order torsion mode vibrations of the head suspension mechanism caused by an air flow. A flange portion having a free end portion 23c on the base part side is formed at both edges close to the tip end of a suspension main frame 23, and at the same time, an elastic material 23d is provided in the free end portion 23c. Also, a sway mode dynamic vibration absorber is formed by the length of the flange portion and the damping effect of the elastic material 23d.
    Type: Application
    Filed: August 31, 2009
    Publication date: December 24, 2009
    Applicant: JUN NARUSE
    Inventors: Kyosuke ONO, Hirotaka SHINADA