Masatoshi Okada
9Patents
7h-index
23Co-inventors
63Inventor score
Filing activity: Apr 7, 1987 → Feb 20, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5485531A | Character-feature extraction device | Physics | 18 | Expired |
| US4729348A | Cylinder head structure for V-type engine | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US7753376B2 | Plunger seal for pump | Mechanical Engineering; Lighting; Heating | 12 | Active |
| US7513506B2 | Plunger seal for pump | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4784091A | Cylinder head cover structure for a V-type engine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5131881A | Lift toy | Human Necessities | 8 | Expired |
| US5501058A | Coil packing line equipped with independently reciprocating carriages | Performing Operations; Transporting | 7 | Expired |
| US7717432B2 | Plunger seal for pump | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US8348639B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.