Yasufumi Takasugi
16Patents
7h-index
30Co-inventors
66Inventor score
Filing activity: Dec 20, 1983 → Apr 25, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4749608A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5698286A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4824724A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4892789A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4592948A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4537832A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5443913A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4621008A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5837744A | Polyoxymethylene articles having printable surface method of imparting printability to polyoxymethylene | Performing Operations; Transporting | 6 | Expired |
| US4759954A | Magnetic recording medium and preparation | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6605341B2 | Functional film having specific surface dispersion ratio | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4844978A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7158459B2 | Apparatus for discriminating optical recording medium and method for discriminating optical recording medium | Physics | 0 | Expired |
| US7200084B2 | Apparatus for discriminating optical recording medium and method for discriminating optical recording medium | Physics | 0 | Expired |
| US7085213B2 | Apparatus for discriminating optical recording medium and method for discriminating optical recording medium | Physics | 0 | Expired |
| US7266065B2 | Apparatus for discriminating optical recording medium and method for discriminating optical recording medium | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.