Toshihiko Takishita
14Patents
6h-index
29Co-inventors
66Inventor score
Filing activity: Aug 27, 1987 → Mar 28, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4947384A | Optical disk having narrow and wide guide grooves | Physics | 45 | Expired |
| US5926453A | Optical disk having first and second recording areas with wobble frequencies that do not interfere with EFM signal | Physics | 28 | Expired |
| US5592463A | Apparatus for and method for determining optimum power for recording information on recordable optical disc | Physics | 20 | Expired |
| US4837130A | Optical disk manufacturing method | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5426632A | Information recording medium and method for recording information to the same | Physics | 8 | Expired |
| US6599607B1 | Optical recording medium | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6169721A | Two-disc laminated optical recording medium | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6687213B1 | Optical recording medium having pre-formed land-prepits and method for producing same | Physics | 2 | Expired |
| US6692809B2 | Optical recording medium | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7230899B2 | Rewritable type optical disc including recording marks over break portions of recording tracks, manufacturing method and manufacturing system therefor | Physics | 1 | Expired |
| US7260052B2 | Information recording medium | Physics | 0 | Expired |
| US7848215B2 | Optical recording medium, information recording apparatus and information reproduction apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US7768901B2 | Optical disc | Physics | 0 | Active |
| US8257813B2 | Information recording medium | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.