Roger K. Malmhall
9Patents
5h-index
7Co-inventors
52Inventor score
Filing activity: Oct 16, 1997 → Apr 5, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5930434A | Optical disc data storage system using optical waveguide | Physics | 15 | Expired |
| US6963530B1 | Near-field optical head system with integrated slider and laser | Physics | 14 | Expired |
| US7327667B2 | Semiconductor laser and associated drive circuit substrate | Electricity | 7 | Expired |
| US7158470B2 | Near-field optical head system with integrated slider and laser | Physics | 7 | Expired |
| US7069569B2 | Near-field optical head system with integrated slider and laser | Electricity | 5 | Expired |
| US8164947B2 | Low current switching magnetic tunnel junction design for magnetic memory using domain wall motion | Electricity | 4 | Active |
| US6937637B1 | Semiconductor laser and associated drive circuit substrate | Electricity | 2 | Expired |
| US8427863B2 | Low current switching magnetic tunnel junction design for magnetic memory using domain wall motion | Electricity | 2 | Active |
| US8724379B2 | Magnetic memory with a domain wall | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.