Yoshinobu Okayasu
5Patents
5h-index
10Co-inventors
56Inventor score
Filing activity: Dec 30, 1986 → Aug 31, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6576584B1 | Method for producing hydrotreating catalyst | Performing Operations; Transporting | 31 | Expired |
| US4738729A | Amorphous silicon semiconductor solar cell | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6267874A | Hydrotreating catalyst and processes for hydrotreating hydrocarbon oil with the same | Chemistry; Metallurgy | 22 | Expired |
| US6436870B1 | Hydrotreating catalyst for hydrotreating hydrocarbon oils | Performing Operations; Transporting | 15 | Expired |
| US4742012A | Method of making graded junction containing amorphous semiconductor device | Emerging Cross-Sectional Technologies | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.