Title:
ELECTROSTATIC STEPPER MOTOR AND MAGNETIC STORAGE USING THE SAME
Document Type and Number:
Japanese Patent JP3354009
Kind Code:
B2
Abstract:
PURPOSE: To narrow the distance between adjacent positions where a traveling body temporarily stops by forming the electrode pattern of a fixed body with a plurality of electrode pattern parts and laying out each electrode pattern part while shifting the electrodes by a specific pitch.
CONSTITUTION: When a switch circuit 120 is switched and connected to a group of terminals 101-1-101-3, electrostatic repulsion force and electrostatic attraction force are applied among electrodes 70-1-70-6 thus enabling a specific point 122 to stop temporarily and rotating by an angle (p) at a time for stepping operation. The electrodes 70-1-70-6 are laid out at an angle pitch of (p) and while being shifted by, for example, p/3 for electrodes 68-1-68-6. Therefore, by properly switching a switch circuit 120, a position where a rotor 53 temporarily stops is determined with a thin resolution of p/3, thus determining the position where the traveling body temporarily stops to be thinner by several times as compared with a conventional method.
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Inventors:
Yoshitoku Otsuka
Takahiro Imamura
Takao Koshikawa
Takahiro Imamura
Takao Koshikawa
Application Number:
JP16973394A
Publication Date:
December 09, 2002
Filing Date:
July 21, 1994
Export Citation:
Assignee:
富士通株式会社
International Classes:
G11B25/04; G11B19/20; H02N1/00; (IPC1-7): H02N1/00; G11B19/20; G11B25/04
Domestic Patent References:
| JP5122948A | ||||
| JP4198890A | ||||
| JP365082A | ||||
| JP365081A | ||||
| JP1259769A |
Attorney, Agent or Firm:
Tadahiko Ito