Ikuko Takekuma
19Patents
4h-index
18Co-inventors
53Inventor score
Filing activity: Feb 25, 2003 → Jul 11, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7368185B2 | Perpendicular magnetic recording media and magnetic storage apparatus using the same | Physics | 15 | Expired |
| US7033686B2 | Perpendicular magnetic recording medium and method of manufacturing it | Physics | 10 | Expired |
| US6916557B2 | Perpendicular magnetic recording media | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8000060B2 | Perpendicular magnetic recording medium and system having a magnetic recording layer with a perpendicular recording layer, a magnetic coupling layer, and a writing assist layer | Physics | 6 | Active |
| US7457064B2 | Perpendicular magnetic recording medium, method of evaluating magnetic properties of the same | Physics | 3 | Active |
| US7701667B2 | Perpendicular magnetic recording medium and magnetic storage apparatus using the same | Physics | 3 | Active |
| US8679654B2 | Magnetic recording medium including plural FePt alloy layers including carbon, oxides or nitrides | Chemistry; Metallurgy | 3 | Active |
| US8771849B2 | Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the same | Physics | 3 | Active |
| US7641989B2 | Perpendicular magnetic recording medium for high density recording and manufacturing of the same | Physics | 2 | Active |
| US9117477B2 | Perpendicular magnetic recording media having novel seed layer | Physics | 1 | Active |
| US7651795B2 | Perpendicular magnetic recording medium and manufacturing of the same | Physics | 1 | Active |
| US7618722B2 | Perpendicular magnetic recording media and magnetic storage apparatus using the same | Physics | 1 | Active |
| US8709618B2 | Magnetic storage apparatus | Physics | 0 | Active |
| US7625646B2 | Perpendicular magnetic recording medium and method of manufacturing it | Physics | 0 | Active |
| US7510789B2 | Perpendicular magnetic recording media | Emerging Cross-Sectional Technologies | 0 | Active |
| US7625644B2 | Perpendicular magnetic recording medium and manufacturing of the same | Physics | 0 | Active |
| US7534507B2 | Perpendicular magnetic recording medium for high density magnetic recording and manufacturing of the same | Physics | 0 | Active |
| US9472228B2 | Perpendicular magnetic recording media having novel magnetic under-layer structure | Physics | 0 | Active |
| US10276192B2 | Perpendicular magnetic recording medium | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.