Tosio Isida
7Patents
7h-index
4Co-inventors
45Inventor score
Filing activity: Apr 13, 1982 → Jan 30, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4512893A | Porous aromatic imide polymer membrane and a process for its manufacture | Emerging Cross-Sectional Technologies | 66 | Expired |
| US4528004A | Aromatic polyimide composite separating membrane | Emerging Cross-Sectional Technologies | 63 | Expired |
| US4474662A | Process for producing porous aromatic polyimide membranes | Chemistry; Metallurgy | 56 | Expired |
| US4440643A | Process for producing aromatic polyimide composite separating membrane | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4485056A | Production of aromatic polyimide separating membranes | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4474858A | Aromatic polyimide gas-separating membrane | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4486376A | Process for modifying porous polymeric membrane | Performing Operations; Transporting | 21 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.