Sei Ozaki
7Patents
5h-index
7Co-inventors
56Inventor score
Filing activity: Jun 12, 1979 → Mar 22, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4687433A | Die for extruding ceramic honeycomb structural bodies | Performing Operations; Transporting | 21 | Expired |
| US4278412A | Extrusion die assembly for forming honeycomb structures | Performing Operations; Transporting | 14 | Expired |
| US4883420A | Die for extruding honeycomb structural bodies | Performing Operations; Transporting | 13 | Expired |
| US4653996A | Die for extruding honeycomb structural body | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4780075A | Dies for extrusion-shaping ceramic honeycomb structural bodies | Performing Operations; Transporting | 5 | Expired |
| US4707904A | Method of manufacturing a die for extruding honeycomb body | Emerging Cross-Sectional Technologies | 1 | Expired |
| US12077032B2 | Passage opening and closing device | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.