Ryoichi Machida
3Patents
3h-index
8Co-inventors
43Inventor score
Filing activity: Jan 27, 1982 → Dec 1, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4397951A | Elastase-containing composition permitting elastase to be absorbed in increased amount | Human Necessities | 25 | Expired |
| US5980947A | Process for producing drug-containing microspheres by oil-in-water evaporation process | Human Necessities | 11 | Expired |
| US5254545A | Injectable preparations containing cephalosporin medicament | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.