Tadao Ohta
6Patents
5h-index
26Co-inventors
63Inventor score
Filing activity: Jun 6, 1977 → Apr 1, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5122418A | Composite powder and production process | Human Necessities | 115 | Expired |
| US5685933A | Method of manufacturing a drive shaft | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5182103A | Magnesium aluminometasilicate coated composite powder and use thereof | Human Necessities | 28 | Expired |
| US5135649A | Column packing material with both hydrophobic and hydrophilic groups and process for production thereof | Performing Operations; Transporting | 18 | Expired |
| US4108116A | Combustion chamber and nozzle arrangement for direct fuel injection type diesel engine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US9425147B2 | Semiconductor device | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.