Toshitake Nagai
10Patents
6h-index
17Co-inventors
55Inventor score
Filing activity: Nov 6, 1987 → Nov 22, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5556671A | Artificial snow in an aggregate form of snow granules | Emerging Cross-Sectional Technologies | 250 | Expired |
| US5436039A | Artificial snow in an aggregate form of snow granules | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5634352A | Refrigeration cycle using six-way change-over valve | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5626030A | Refrigerant flow amount control valve and refrigerating apparatus therewith | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4876070A | Air blower apparatus | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5261245A | Method for making ice slab and/or artificial snow | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5136849A | Snow composition and method for making artificial snow | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US5266367A | Artificial snow granule | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5699675A | Heat exchanger and cooling apparatus mounted with the same | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5632152A | Artificial snow in an aggregate form of snow granules | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.