Masayuki Sagoi
25Patents
13h-index
19Co-inventors
78Inventor score
Filing activity: Jul 25, 1979 → Aug 30, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6611405B1 | Magnetoresistive element and magnetic memory device | Emerging Cross-Sectional Technologies | 118 | Expired |
| US6995962B2 | Ferromagnetic double tunnel junction element with asymmetric energy band | Physics | 107 | Expired |
| US6473336B2 | Magnetic memory device | Electricity | 75 | Expired |
| US6751074B2 | Magnetic memory having antiferromagnetically coupled recording layer | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4761334A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6556473B2 | Magnetic memory with reduced write current | Electricity | 39 | Expired |
| US6605836B2 | Magnetoresistance effect device, magnetic memory apparatus, personal digital assistance, and magnetic reproducing head, and magnetic information | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6590803B2 | Magnetic memory device | Physics | 23 | Expired |
| US6839206B2 | Ferromagnetic double tunnel junction element with asymmetric energy band | Physics | 20 | Expired |
| US7035137B2 | Semiconductor memory device having memory cells including ferromagnetic films and control method thereof | Physics | 17 | Expired |
| US6730949B2 | Magnetoresistance effect device | Electricity | 16 | Expired |
| US6987653B2 | Magnetoresistive element and magnetic memory device | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4629660A | Perpendicular magnetic-recording medium | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4701374A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7345852B2 | Magnetoresistive element and magnetic memory device | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7038894B2 | Magnetoresistive element and magnetic memory device | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7593193B2 | Magnetoresistive element and magnetic memory device | Emerging Cross-Sectional Technologies | 8 | Active |
| US4680197A | Method of manufacturing perpendicular magnetic recording floppy disk | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6707711B2 | Magnetic memory with reduced write current | Electricity | 8 | Expired |
| US6868002B2 | Magnetic memory with reduced write current | Electricity | 6 | Expired |
| US4748073A | Perpendicular magnetic recording medium with multilayered protective layer | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4801481A | Perpendicular magnetic recording floppy disk | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7140096B2 | Method of manufacturing a magnetoresistance effect device | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4253873A | Titanium-based alloy having high mechanical strength | Chemistry; Metallurgy | 1 | Expired |
| US5126320A | Method for manufacturing an oxide superconducting thin-film | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.