Mitsuru Takai
34Patents
8h-index
18Co-inventors
72Inventor score
Filing activity: Jul 2, 1987 → Jan 11, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4900622A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5525398A | Perpendicular magnetic recording medium and method for making | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7214624B2 | Resist pattern forming method, magnetic recording medium manufacturing method and magnetic head manufacturing method | Physics | 16 | Expired |
| US4770924A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5453886A | Digital recording method using a specified magnetic recording medium | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7225528B2 | Method for manufacturing magnetic recording medium | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7488429B2 | Method of dry etching, method of manufacturing magnetic recording medium, and magnetic recording medium | Physics | 10 | Expired |
| US7470374B2 | Manufacturing method and manufacturing apparatus of magnetic recording medium | Physics | 9 | Expired |
| US5225234A | Magnetic recording medium comprising multiple thin film magnetic layers each formed within specified maximum and minimum incident angles | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7413819B2 | Magnetic recording medium | Physics | 7 | Expired |
| US7247343B2 | Method for manufacturing magnetic recording medium | Physics | 6 | Expired |
| US5972435A | Method for forming film by plasma polymerization and apparatus for forming film by plasma polymerization | Chemistry; Metallurgy | 6 | Expired |
| US7423842B2 | Magnetic recording medium having servo and data track regions with different arithmetical mean deviations | Physics | 5 | Active |
| US7438982B2 | Magnetic recording medium including disk substrate, magnetic layer, and non-magnetic layer | Emerging Cross-Sectional Technologies | 4 | Active |
| US7149338B2 | Next process-determining method, inspecting method and inspecting apparatus | Physics | 3 | Expired |
| US5512373A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7480924B2 | Magnetic recording and reproducing device and magnetic recording medium | Physics | 3 | Expired |
| US7223439B2 | Method for manufacturing magnetic recording medium and magnetic recording medium | Physics | 3 | Expired |
| US7423841B2 | Discrete track magnetic recording medium with lift-adjusting surface | Physics | 3 | Expired |
| US7604880B2 | Information recording medium | Physics | 1 | Expired |
| US7636215B2 | Magnetic recording medium, recording/reproducing apparatus, and method of manufacturing a magnetic recording medium | Physics | 1 | Active |
| US7230795B2 | Recording medium having reduced surface roughness | Physics | 1 | Expired |
| US7531103B2 | Mask forming method, mask forming functional layer, dry etching method, and method of manufacturing an information recording medium | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5549979A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7184382B2 | Energy beam irradiating apparatus | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.