Hisashi Umeda
8Patents
6h-index
12Co-inventors
56Inventor score
Filing activity: Aug 8, 1997 → Sep 15, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6645646B1 | Magnetic recording medium and magnetic storage apparatus | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7271984B2 | Magnetic recording medium having at least two coupled magnetic layers, magnetic storage apparatus and recording method | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5868562A | Paint drying furnace | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US7625643B2 | Magnetic recording medium, magnetic storage apparatus and recording method | Emerging Cross-Sectional Technologies | 9 | Active |
| US5823767A | Paint drying furnace | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US7993980B2 | Lead frame, electronic component including the lead frame, and manufacturing method thereof | Emerging Cross-Sectional Technologies | 6 | Active |
| US7435489B2 | Magnetic recording medium, magnetic storage apparatus and recording method | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6689496B1 | Magnetic recording medium, method of producing magnetic recording medium, and magnetic storage apparatus | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.