Tatsuya Iwatsuki
10Patents
5h-index
12Co-inventors
52Inventor score
Filing activity: Oct 10, 1984 → Sep 28, 1988
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4763749A | Four-wheel drive vehicle | Performing Operations; Transporting | 21 | Expired |
| US4739678A | Oil separating structure of automatic transmission | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4862768A | Limiting/switching device for four wheel drive vehicle | Performing Operations; Transporting | 12 | Expired |
| US4911260A | Four-wheel drive vehicle | Performing Operations; Transporting | 11 | Expired |
| US4790211A | Power transmission device for four wheel drive vehicle having an improved differential motion limiting mechanism | Performing Operations; Transporting | 5 | Expired |
| US4909345A | Power transmission device for four wheel drive vehicles | Performing Operations; Transporting | 4 | Expired |
| US4745819A | Compact power transmission device for a four-wheel drive vehicle | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4763748A | Four-wheel drive vehicle | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4646890A | One-way clutch mounting means for automatic transmissions | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4896739A | Four-wheel drive vehicle | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.