Patents by Inventor Hideto Nishimura

Hideto Nishimura 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).

  • Rotational driving device
    Publication number: 20050006965
    Abstract: An rotational driving device in which electric circuit board is provided with stepped shape fastening parts each including a cylindrical fitting portion having a thin depression and a rest seat portion serving as a seat plane for receiving an iron core and the fitting portions are fitted in three through holes made in the periphery of the iron core and after they are fitted, the depressions of the fitting portions are deformed outwardly nearly in the shape of an inverted cone to fasten and fix the iron core to the electric circuit board.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 13, 2005
    Inventors: Masao Sato, Hideto Nishimura
  • Frame for flexible disk drive unit having distortion prevention hole and 2 ribs formed around motor attaching hole
    Patent number: 5870248
    Abstract: A flexible disk drive unit including a spindle motor for driving to rotate a magnetic disk; magnetic heads opposing the magnetic disk; a carriage attached to a frame and movable in a radius direction of the magnetic disk; wherein the frame and a motor base constitute a common member and the spindle motor is of a sensorless drive system and is directly attached to the frame; and wherein the frame is provided with an attaching hole for erecting a bearing of the spindle motor of the sensorless drive system on the frame.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: February 9, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Satoru Akutsu, Kazuya Oda, Katsumi Kurita, Hideto Nishimura, Koichi Okubo, Hiroshi Ito, Yukio Izumi, Hidetada Nagaoka, Keiichi Nishikawa, Atsuo Onoda, Yuji Ohmura