Claims
- 1. A disk drive apparatus for storing information comprising:
- a housing providing a base for mounting components of said disk drive;
- at least one disk rotatably mounted on said housing;
- an actuator attached to said housing, said actuator having a first end and a second end, and pivoting about an axis parallel to the axis of rotation of said disk;
- a head attached to said first end of said actuator;
- a coil attached to the second end of said actuator;
- a first permanent magnet for creating a magnetic field surrounding said coil, said field used for positioning said actuator;
- wherein said housing has a first through hole opening therein near said coil, said first permanent magnet being positioned within and substantially filling said first through hole opening, said first permanent magnet being attached to said housing.
- 2. The disk drive apparatus of claim 1, further comprising:
- a second permanent magnet for creating said magnetic field surrounding said coil;
- wherein said housing has a second through hole opening therein near said coil on a side opposite the first through hole opening, said second permanent magnet being positioned within and substantially filling said second through hole opening, said second permanent magnet being attached to said housing.
- 3. The disk drive apparatus of claim 2, further comprising:
- a first thin film sheet covering said first through hole opening between said coil and said first permanent magnet, said first thin film sheet being thin in relation to the thickness of said housing;
- a second thin film sheet covering said second through hole opening between said coil and said second permanent magnet, said second thin film sheet being thin in relation to the thickness of said housing.
- 4. The disk drive apparatus of claim 1, further comprising:
- a thin film sheet covering said first through hole opening between said coil and said first permanent magnet, said thin film sheet being thin in relation to the thickness of said housing.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-190878 |
Jul 1990 |
JPX |
|
CROSS REFERENCE TO RELATED APPLICATIONS
This is a divisional of application Ser. No. 08/176,406 filed on Jan. 3, 1994 issued Jan. 9, 1996 as U.S. Pat. No. 5,483,400 which is a divisional of Ser. No. 07/731,587, filed Jul. 17, 1991 (issued May 24, 1994 as U.S. Pat. No. 5,315,464).
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
59-45662 |
Mar 1984 |
JPX |
64-07382 |
Jan 1989 |
JPX |
Divisions (2)
|
Number |
Date |
Country |
Parent |
176406 |
Jan 1994 |
|
Parent |
731587 |
Jul 1991 |
|