Hidehiko Numasato
15Patents
7h-index
26Co-inventors
66Inventor score
Filing activity: Mar 25, 1997 → Dec 24, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6407876B1 | Magnetic disk apparatus having an accelerometer for detecting acceleration in the positioning direction of the magnetic head | Physics | 27 | Expired |
| US5986845A | Apparatus for positioning magnetic head and method of the same | Physics | 14 | Expired |
| US6898039B2 | Positioning control device for two-stage actuator | Physics | 14 | Expired |
| US6335845B1 | Magnetic disk apparatus having an accelerometer for detecting acceleration in the positioning direction of the magnetic head | Physics | 13 | Expired |
| US6707633B2 | Magnetic disk device including coarse and micro actuators | Physics | 9 | Expired |
| US10930310B1 | Data storage device sorting access commands based on peak current for multiple actuators | Emerging Cross-Sectional Technologies | 7 | Active |
| US10839839B1 | Data storage device managing peak current for multiple actuators | Physics | 7 | Active |
| US7173790B2 | Magnetic disk apparatus with dual stage actuator | Physics | 6 | Expired |
| US6888696B2 | Magnetic disk apparatus and servo signal recording method | Physics | 6 | Expired |
| US10410657B1 | Data storage device employing nominal and adaptive multi-actuator decoupler | Physics | 5 | Active |
| US6961205B2 | Magnetic disk apparatus | Physics | 3 | Expired |
| US11915731B1 | Data storage device with notch filter calibration based on multi-rate excitation and error rejection | Physics | 0 | Active |
| US11817122B1 | Data storage device with notch filter calibration based on multi-rate excitation and error rejection | Physics | 0 | Active |
| US12271631B1 | Data storage device sorting access commands based on performance and off-track mitigation optimization | Physics | 0 | Active |
| US12223982B1 | Head velocity derating for data storage devices including disk media | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.