Satoshi Sumi
28Patents
10h-index
48Co-inventors
75Inventor score
Filing activity: Oct 20, 1989 → Jul 17, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6621772B2 | Record medium and reproducing apparatus of the same for detecting an offset correction | Physics | 34 | Expired |
| US5796683A | Magneto-optical recording device having a controllable polarizing filter | Physics | 23 | Expired |
| US6240056A | Information recording and reproduction apparatus using a pulsed laser light | Physics | 19 | Expired |
| US6198710A | Digital recording method, digital disk, digital disk recording device, and digital disk reproducing device | Physics | 19 | Expired |
| US6538968B1 | Information recording/reproducing apparatus | Physics | 14 | Expired |
| US6400653B1 | Information recording/reproducing apparatus to record/reproduce information on a recording medium recorded with an address mark | Physics | 14 | Expired |
| US6424601B1 | Magneto-optical recording media having an auxiliary magnetic layer | Physics | 12 | Expired |
| US4993011A | Optical recording apparatus with simultaneous erasing and recording | Physics | 12 | Expired |
| US6385158B1 | Optical pickup device having compatibility with tracking system, and optical disk recording/reproduction apparatus using the same | Physics | 11 | Expired |
| US6324138A | Digital disk recording and reproduction apparatus | Physics | 10 | Expired |
| US6205092A | Magneto-optical recording and reproducing apparatus and method | Physics | 10 | Expired |
| US6243326A | Recording and reproduction device for a magneto-optic recording medium capable of recording information according to optical super-resolution | Physics | 9 | Expired |
| US5327414A | Signal recording method for optical disk and apparatus therefor | Physics | 8 | Expired |
| US6169714A | Apparatus and method for recording/reproducing magneto-optical information | Physics | 7 | Expired |
| US5968678A | Magneto-optical recording medium and manufacturing method thereof | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6327232A | Information recording and reproduction apparatus carrying out recording and reproduction of information using laser beam | Physics | 4 | Expired |
| US6324137A | Information recording and reproduction apparatus carrying out recording and reproduction of information using laser beam | Physics | 3 | Expired |
| US7327651B2 | Optical disc device | Physics | 2 | Active |
| US6314070A | Information recording and reproduction apparatus carrying out recording and reproduction of information using laser beam | Physics | 2 | Expired |
| US7604878B2 | Magneto-optical recording medium and layer structure | Physics | 1 | Active |
| US7729217B2 | Optical disc device for recording and reproducing information on and from a write-once-type disc using laser light | Physics | 1 | Active |
| US6920087B2 | Magneto-optical recording apparatus capable of adjusting the magnetic head | Physics | 1 | Expired |
| US6301199A | Magneto-optical recording medium and recording/reproducing apparatus therefor in which recorded magnetic domains are transferred from the recording layer to the reproducing layer | Physics | 1 | Expired |
| US6847590B2 | Magneto-optical recording medium including a calibration magnetic domain recorded in a predetermined pattern in a recording layer | Physics | 0 | Expired |
| US7719953B2 | Optical recording medium, optical recording method, optical reproducing method, optical recording apparatus, and optical reproducing apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.