Company Filing History:

6 out of 42,488

Hitachi, Ltd.

patents

2 out of 227

Hitachi Global Storage Technologies Japan, Ltd.

Years Active: 2000-2007

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7259936 - Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device (2007-08-21),

2. 7035049 - Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device (2006-04-25),

3. 6937445 - Recording/reproducing separated type head with heat radiating structure (2005-08-30),

4. 6801397 - Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device (2004-10-05),

5. 6690544 - Magnetic head and magnetic head manufacturing method (2004-02-10),

6. 6577472 - Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture (2003-06-10),

7. 6504680 - Magnetic head and magnetic head manufacturing method (2003-01-07),

8. 6278582 - Magnetic head and magnetic head manufacturing method (2001-08-21),

9. 6096445 - Substrate for a magnetic recording medium, the magnetic recording (2000-08-01),

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Location History:

Company Filing History:

Years Active: 2000-2007