Masatoshi Ohtake
26Patents
12h-index
49Co-inventors
81Inventor score
Filing activity: Dec 18, 1978 → Jul 21, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4748609A | Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset | Physics | 86 | Expired |
| US4866688A | Composite tracking servo system for optical disc apparatus with track offset correction | Physics | 72 | Expired |
| US4707816A | Method and apparatus for composite wobbled and push-pull tracking servo system | Physics | 71 | Expired |
| US6236635A | Information recording method and apparatus with suppressed mark edge jitters | Physics | 52 | Expired |
| US4785442A | Light spot position control system and method by sampling servo | Physics | 33 | Expired |
| US4199820A | Random access storage apparatus with a movable recording medium | Physics | 32 | Expired |
| US7012871B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 21 | Expired |
| US4759628A | Wavelength scanning interferometry and interferometer employing laser diode | Physics | 17 | Expired |
| US4949325A | Method and associated apparatus and medium for optical recording and reproducing information | Physics | 16 | Expired |
| US5594680A | Noise reduced contactless parallel data transfer device and method thereof | Physics | 15 | Expired |
| US6282611A | Digital information system, digital audio signal processor and signal converter | Electricity | 15 | Expired |
| US6529467B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 14 | Expired |
| US6343056B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 12 | Expired |
| US4872152A | Light spot position control system and method by sampled servo | Physics | 11 | Expired |
| US5001409A | Surface metrological apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5086438A | Signal generating and receiving apparatuses based on synchronous transfer mode | Electricity | 9 | Expired |
| US4847822A | Optical information recording and reproducing apparatus with tracking control by sampling | Physics | 4 | Expired |
| US6608806B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 3 | Expired |
| US7907490B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 1 | Active |
| US7042823B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 0 | Expired |
| US7911910B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 0 | Active |
| US7417933B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 0 | Active |
| US7684301B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 0 | Active |
| US7852727B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 0 | Active |
| US7907491B2 | Information recording method and apparatus with suppressed mark edge jitters | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.