Fuminori Sai
25Patents
9h-index
65Co-inventors
78Inventor score
Filing activity: Feb 24, 1993 → Jul 17, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6981205B2 | Data storage apparatus, read data processor, and read data processing method | Physics | 114 | Expired |
| US6236527A | Disk drive with actuator load/unload controller | Physics | 63 | Expired |
| US6229663A | Disk drive loading/unloading apparatus and method for controlling the apparatus | Physics | 51 | Expired |
| US5266897A | Magnetic field observation with tunneling microscopy | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7733591B2 | Data storage device with data recovery process using fixed phase clocking for analog-to-digital conversion | Physics | 18 | Active |
| US6078474A | Ramp for use with a data storage device and a data storage device | Physics | 18 | Expired |
| US8190831B2 | Methods and apparatus for detecting a syncMark in a hard disk drive | Physics | 17 | Active |
| US7019933B2 | Servo information write method, servo control method, data storage device, and program | Physics | 13 | Expired |
| US7342735B2 | Method of writing patterns onto a recording disk, and data storage device | Physics | 11 | Active |
| US6643087B1 | Disk drive with improved retract circuit and method | Physics | 8 | Expired |
| US6151183A | Disk drive device and method for controlling the same | Physics | 7 | Expired |
| US6424476B1 | Method and apparatus for controlling read and write operations in a storage device | Physics | 6 | Expired |
| US5638203A | Liquid crystal electrooptical device | Physics | 5 | Expired |
| US7486467B2 | Magnetic disk drive and method for registering defective sector using timing control of pattern writing | Physics | 5 | Active |
| US7286316B2 | Method and data storage device for writing patterns onto recording disk | Physics | 5 | Expired |
| US7724464B2 | Recording disk and disk drive | Physics | 5 | Active |
| US7646561B2 | Method of writing pattern in disk, method of following track on disk, and apparatus for writing pattern in disk | Physics | 5 | Active |
| US7489463B2 | Method of writing patterns using head with correct phases, and data storage device | Physics | 4 | Active |
| US7532424B2 | Method of writing pattern on media and data storage device | Physics | 4 | Active |
| US7525747B2 | Data storage device, data storage control circuit, and control method for magnetic disk drive | Physics | 3 | Active |
| US7023638B2 | Data storage device, data read correction mechanism, and data read control method | Physics | 3 | Expired |
| US7446967B2 | Method of measuring head characteristics of a data storage device, and data storage device | Physics | 2 | Expired |
| US7457065B2 | Systems and methods for hard disk drive optimization and manufacturing | Physics | 1 | Expired |
| US9202514B1 | Gated noise-predictive filter calibration | Physics | 1 | Active |
| US7697224B2 | Storing AD sampled data of read/write channel into ECC SRAM | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.