Granted Patent
Utility
US 6,741,412
· Confirmation No. 7205
DATA RECORDING/REPRODUCING SIGNAL PROCESSING CIRCUIT FOR MAGNETIC RECORDING, AND PERPENDICULAR MAGNETIC RECORDING/REPRODUCING APPARATUS USING IT
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2004-04-14 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2001-06-08 | TRNA |
Transmittal of New Application | 4 | View | |
| 2001-06-08 | SPEC |
Specification | 23 | View | |
| 2001-06-08 | CLM |
Claims | 5 | View | |
| 2001-06-08 | ABST |
Abstract | 1 | View | |
| 2001-06-08 | DRW |
Drawings-only black and white line drawings | 6 | View | |
| 2001-06-08 | OATH |
Oath or Declaration filed | 4 | View |
Inventors
Hideki Sawaguchi
Kokubunji, JAPAN
Yasutaka Nishida
Kodaira, JAPAN
Hisashi Takano
Kodaira, JAPAN
Toru Matsushita
Kokubunji, JAPAN
Attorneys & Agents of Record
Classification
USPC
360/45
Prosecution
- Examiner
- FABER, ALAN
- Art Unit
- 2651
- Customer No.
- 20457
- Docket No.
- 500.40191X00
- Confirmation No.
- 7205
Foreign Priority
2000-177135
·
2000-06-08
·
JAPAN
Publication
- Pub. No.
- US20020012185A1
- Pub. Date
- 2002-01-31
Patent Term Adjustment
-71days
RELEASE OF SECURITY INTEREST AT REEL 052915 FRAME 0566
Recorded 2022-02-08
SECURITY INTEREST
Recorded 2020-02-06
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2016-12-05
from
HITACHI, LTD.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2003-12-09
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-06-08
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Quick Facts
- Patent No.
- US 6,741,412
- App. No.
- 09/875,875
- Filed
- 2001-06-08
- Granted
- 2004-05-25
- Pub. No.
- US20020012185A1
- Examiner
- FABER, ALAN
- Art Unit
- 2651
- PTA
- -71 days
External Links