Hiroshi Oshima
46Patents
14h-index
90Co-inventors
84Inventor score
Filing activity: Aug 16, 1983 → Jan 16, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5138824A | Safety system for a lawn mower | Human Necessities | 45 | Expired |
| US5155985A | Working vehicle controllable by walking operator and having independently driven right and left ground wheels | Human Necessities | 42 | Expired |
| US5247784A | Transmission system capable of driving right and left drive wheels at different speeds | Human Necessities | 33 | Expired |
| US6276119A | Apparatus for suspending a mower unit from a vehicle body | Human Necessities | 29 | Expired |
| US4652593A | Dental aluminate cement compositions | Chemistry; Metallurgy | 26 | Expired |
| US5990800A | Remote engine starting and stopping device for construction machine | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4647600A | Dental cement compositions | Human Necessities | 24 | Expired |
| US6360517B1 | Mower unit | Human Necessities | 19 | Expired |
| US4882897A | Clutch control structure for a walking operator type lawn mower | Human Necessities | 18 | Expired |
| US5398489A | Lawn mower with vertical adjustment | Human Necessities | 18 | Expired |
| USD319447S | Lawn mower | General | 17 | Expired |
| US5020310A | Lawn mower | Human Necessities | 16 | Expired |
| US7617665B2 | Mower having cutting chambers | Human Necessities | 16 | Active |
| US6729431B2 | Tractor with implement mounting frame | Performing Operations; Transporting | 15 | Expired |
| US8022139B2 | Polylactic acid composition | Emerging Cross-Sectional Technologies | 14 | Active |
| US7140732B2 | Projection type image display device | Electricity | 11 | Expired |
| US6959780B2 | Vibration damping system for an engine mounted on a vehicle | Performing Operations; Transporting | 10 | Expired |
| US5002519A | Dual tension clutch | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US7610742B2 | Mower unit | Human Necessities | 8 | Active |
| US6382964B2 | Process and apparatus for heat-treating substrate having film-forming composition thereon | Electricity | 8 | Expired |
| US6484486B2 | Grass cutting machine with mower unit | Human Necessities | 8 | Expired |
| US4531082A | Control system for positioning implements | Performing Operations; Transporting | 8 | Expired |
| USD308681S | Lawn mower | General | 7 | Expired |
| US6440484B1 | Low-temperature and high-pressure processing method for fish meat and/or kneaded fish meat products | Human Necessities | 6 | Expired |
| US6261091A | Process and apparatus for heat-treating substrate having film-forming composition thereon | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.