Sunao Matsubara
6Patents
5h-index
21Co-inventors
59Inventor score
Filing activity: Jul 29, 1985 → Feb 8, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6180020A | Polishing method and apparatus | Performing Operations; Transporting | 31 | Expired |
| US5815396A | Vacuum processing device and film forming device and method using same | Electricity | 29 | Expired |
| US5707500A | Vacuum processing equipment, film coating equipment and deposition method | Electricity | 25 | Expired |
| US4721535A | Solar cell | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6478977B1 | Polishing method and apparatus | Electricity | 5 | Expired |
| US4642412A | Photo-electronic conversion apparatus with light pattern discriminator | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.