Kunihiro Fukui
13Patents
8h-index
40Co-inventors
72Inventor score
Filing activity: Aug 13, 1982 → Sep 1, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4630849A | Oil well pipe joint | Mechanical Engineering; Lighting; Heating | 140 | Expired |
| US7314560B2 | Cyclone separator | Performing Operations; Transporting | 39 | Expired |
| US4474651A | Oil well casing and tubing joint and production of same | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4464232A | Production of one-side electroplated steel sheet | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5356724A | Excellent far-infrared radiating material | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4871194A | Oil well pipe joint and manufacturing method therefor | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5584428A | Process for manufacturing clad pipe | Performing Operations; Transporting | 15 | Expired |
| US7399535B2 | Hot press-formed article | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8276946B2 | Threaded joint for steel tubes | Chemistry; Metallurgy | 2 | Active |
| US7311824B2 | Fine particle separation treatment system and cyclone separator | Performing Operations; Transporting | 2 | Expired |
| US6878458B2 | Metal foil for current collector of secondary battery and method of producing the same | Emerging Cross-Sectional Technologies | 0 | Expired |
| US7998329B2 | Porous nickel foil for negative electrode of alkaline battery, production method therefor and production device therefor | Emerging Cross-Sectional Technologies | 0 | Active |
| US7641169B2 | Substrate for a stamper | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.