Quantum Corporation
943Patents
320Active
943Granted
53Portfolio score
Filing activity: May 5, 1975 → May 7, 2024 · 99 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7076606B2 | Accelerated RAID with rewind capability | Emerging Cross-Sectional Technologies | 370 | Expired |
| US5384671A | PRML sampled data channel synchronous servo detector | Physics | 297 | Expired |
| US5668679A | System for self-servowriting a disk drive | Physics | 249 | Expired |
| US5255136A | High capacity submicro-winchester fixed disk drive | Electricity | 236 | Expired |
| US5341249A | Disk drive using PRML class IV sampling data detection with digital adaptive equalization | Physics | 185 | Expired |
| US6106913A | Fibrous structures containing nanofibrils and other textile fibers | Emerging Cross-Sectional Technologies | 179 | Expired |
| US5027241A | Data head load beam for height compacted, low power fixed head and disk assembly | Emerging Cross-Sectional Technologies | 175 | Expired |
| US6195732A | Storage device capacity management | Physics | 167 | Expired |
| US5041924A | Removable and transportable hard disk subsystem | Emerging Cross-Sectional Technologies | 165 | Expired |
| US6611398B1 | Tape head with support bars | Physics | 162 | Expired |
| US4669004A | High capacity disk file with embedded sector servo | Physics | 162 | Expired |
| US6957291B2 | Removable disk storage array emulating tape library having backup and archive capability | Physics | 160 | Expired |
| US7831793B2 | Data storage system including unique block pool manager and applications in tiered storage | Physics | 148 | Active |
| US6251344A | Air quality chamber: relative humidity and contamination controlled systems | Physics | 140 | Expired |
| US5995328A | Multi-layered integrated conductor trace array interconnect structure having optimized electrical parameters | Physics | 139 | Expired |
| US5737152A | Suspension with multi-layered integrated conductor trace array for optimized electrical parameters | Physics | 138 | Expired |
| US5422760A | Disk drive method using zoned data recording and PRML sampling data detection with digital adaptive equalization | Physics | 135 | Expired |
| US7153366B1 | Systems and method for forming a servo pattern on a magnetic tape | Physics | 127 | Expired |
| US7162678B2 | Extended error correction codes | Physics | 126 | Expired |
| US5812344A | Suspension with integrated conductor trace array having optimized cross-sectional high frequency current density | Physics | 122 | Expired |
| US4783705A | High capacity disk file with embedded sector servo and SCSI interface | Emerging Cross-Sectional Technologies | 122 | Expired |
| US6122131A | Adaptively-controlled disk drive assembly | Physics | 115 | Expired |
| US7029726B1 | Method for forming a servo pattern on a magnetic tape | Physics | 113 | Expired |
| US5717547A | Multi-trace transmission lines for R/W head interconnect in hard disk drive | Physics | 112 | Expired |
| US7255908B2 | Magnetic tape | Emerging Cross-Sectional Technologies | 111 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.