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Siemens v. Seagate Technology DC
- 8:06-cv-00788
- C.D. Cal.
- Judge: James V. Selna +1
- Filed: 08/23/2006
- Closed: 01/30/2009
- Latest Docket Entry: 07/01/2010
- PACER
- Docket updated daily
1
Plaintiff
1
Defendant
2
Accused
Products
1
Patent-in-Suit
892
Days in
Litigation
-
Siemens v. Seagate Technology DC
- 8:06-cv-00788
- C.D. Cal.
- Judge: James V. Selna +1
- Filed: 08/23/2006
- Closed: 01/30/2009
- Latest Docket Entry: 07/01/2010
- PACER
- Docket updated daily
Cause of Action
Willful Patent Infringement
Assigned Judge
Outcome Summary
- Patent Information
-
Validity & Enforceability
Claim # | Claim Text | Outcome |
---|---|---|
1 |
A magnetoresistive sensor comprising: a) a layer system, wherein said layer system includes: a1) at least one measuring layer which, in the plane of said measuring layer, has a magnetization which at least in one direction depends reversibly on an
view more
|
Enforceable and Invalid (102 and 103)
Entry 705 |
7 |
The magnetoresistive sensor of claim 1, wherein the ground state magnetization of said measuring layer and the magnetization of the bias layer are aligned at least approximately perpendicular to each other.
|
Enforceable and Invalid (102 and 103)
Entry 705 |
14 |
The magnetoresistive sensor of claim 1, wherein the measuring contacts are arranged at a predetermined distance from the edges of said layer system.
|
Enforceable and Invalid (102 and 103)
Entry 705 |
15 |
The magnetoresistive sensor of claim 1, wherein said measuring contacts are arranged on an outer layer of said sensor.
|
Enforceable and Invalid (102 and 103)
Entry 705 |
19 |
The magnetoresistive sensor of claim 1, wherein the measuring layer is magnetized in the direction of a preferred axis in the absence of an external applied magnetic field.
|
Enforceable and Invalid (102 and 103)
Entry 705 |
20 |
The magnetoresistive sensor of claim 1, wherein each magnetic layer is magnetized along a preferred axis.
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Enforceable and Invalid (102 and 103)
Entry 705 |
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Infringement
Seagate Technology plc
- 1 Detail
Accused Product | Patent # | Claim # | Outcome |
---|---|---|---|
disk drive incorporating Giant Magnetic Resistance sensors, Giant Magnetic Resistance Read Heads, and TGMR/TMR Read Heads | US 5,686,838 A |
1, 7, 14, 15, 19, 20
|
No infringement
Entry 208
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