Keiichi Takagi
12Patents
6h-index
22Co-inventors
66Inventor score
Filing activity: Apr 3, 1990 → Mar 25, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5894209A | Apparatus for and method of controlling stepping motor | Physics | 50 | Expired |
| US5058090A | Magazine loading disk player | Physics | 13 | Expired |
| US5245602A | Front loading disk player | Physics | 11 | Expired |
| US7120011B2 | Flat type image display device | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6690638B1 | Supporting mechanism for an optical disc reproducing apparatus having a sub-frame for suppressing vibration | Physics | 7 | Expired |
| US6700859B2 | Information recording/reproducing apparatus with details of the pickup support unit | Physics | 6 | Expired |
| US6799324B1 | Disc driving apparatus | Physics | 5 | Expired |
| US7466379B2 | Display apparatus | Physics | 4 | Active |
| US6880162B2 | Disk drive having an air flow path room | Physics | 3 | Expired |
| US6740991B2 | Current noise insulated spindle motor | Electricity | 2 | Expired |
| US11465193B2 | Conveying device | Emerging Cross-Sectional Technologies | 0 | Active |
| US8264825B2 | Flat type image display apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.