Masao Ogawa
77Patents
19h-index
82Co-inventors
87Inventor score
Filing activity: Apr 20, 1973 → Dec 21, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5445871A | Surface-modified plastic plate | Emerging Cross-Sectional Technologies | 133 | Expired |
| US5477936A | Electric motor vehicle and battery unit for electric motor vehicle | Emerging Cross-Sectional Technologies | 79 | Expired |
| US5583418A | Battery charging station for electric vehicles and electric vehicle usable therewith | Emerging Cross-Sectional Technologies | 69 | Expired |
| US4659106A | Suspension apparatus for vehicle | Performing Operations; Transporting | 50 | Expired |
| US5613569A | Electric motor vehicle and battery unit for electric motor vehicle | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5577747A | Battery unit cooling system for an electric vehicle | Performing Operations; Transporting | 46 | Expired |
| US5513721A | Cover structure and battery storing case structure for an electric vehicle | Performing Operations; Transporting | 46 | Expired |
| US5647450A | Cooling system included in a battery charger for an electric vehicle | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6872156B2 | Baseball or softball bat, bat base member and elastic sleeve | Human Necessities | 41 | Expired |
| US5918692A | Small-sized vehicle | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4632413A | Body banking suspension apparatus for a vehicle | Performing Operations; Transporting | 36 | Expired |
| US5421427A | Battery placement for an electric vehicle | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4685690A | Suspension apparatus of vehicle | Performing Operations; Transporting | 30 | Expired |
| US4300970A | Method of bonding vulcanized rubber to resin | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4143201A | Polysaccharide beads | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7210550B2 | Under-seat structure for a motorcycle | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5232701A | Boron carbonate and solid acid pesticidal composition | Human Necessities | 24 | Expired |
| US5137726A | Emulsifiable pesticidal solid compositions | Human Necessities | 24 | Expired |
| US5921578A | Body frame assembly in a small-sized vehicle | Performing Operations; Transporting | 21 | Expired |
| US7621362B2 | Longitudinally slidable seat structure for two- or three-wheeled vehicle | Performing Operations; Transporting | 16 | Active |
| US5977023A | Sustained release, solid pesticidal compositions comprising water insoluble alginates | Human Necessities | 16 | Expired |
| US3970718A | Method of producing polymer compositions based on chlorinated polyethylene | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5092257A | Automatic threading apparatus on a sewing machine | Textiles; Paper | 15 | Expired |
| US7220191B2 | High-strength golf ball | Human Necessities | 15 | Expired |
| US5182786A | Active energy beam-curable composition containing particles and coated optical fiber | Emerging Cross-Sectional Technologies | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.