Takeo Sonobe
7Patents
6h-index
27Co-inventors
59Inventor score
Filing activity: Oct 27, 1986 → Oct 29, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5410676A | Information system using designating areas for retrieving/converting data and directories of different formats storing in optical and magnetic storage | Physics | 68 | Expired |
| US5040167A | Disk cartridge | Physics | 27 | Expired |
| US5072438A | Optical information recording disc and apparatus for driving the disc | Physics | 15 | Expired |
| US4796140A | Removable disk construction | Physics | 13 | Expired |
| US5471606A | Information storage and processing | Physics | 11 | Expired |
| US4992893A | Alignment disk for magnetic disk driving apparatus and method and apparatus for verifying tracking error of the magnetic disk driving apparatus | Physics | 7 | Expired |
| US7447567B2 | Electric power system suppressing corona discharge from viewpoint of environment | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.