Hirofumi KOJIMA
3Patents
3h-index
8Co-inventors
43Inventor score
Filing activity: Dec 19, 1996 → Feb 25, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8169738B1 | Fluid dynamic bearing mechanism including communicating channel, spindle motor, and disk drive apparatus | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US5841157A | Semiconductor integrated circuit including a high density cell | Electricity | 5 | Expired |
| US8215842B2 | Dynamic fluid pressure bearing, spindle motor, disk drive apparatus and method for manufacturing the dynamic fluid pressure bearing | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.