Akihiro Ashida
13Patents
2h-index
26Co-inventors
54Inventor score
Filing activity: Oct 2, 1991 → Jan 22, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5227193A | Method for manufacturing magnetic head | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6150044A | Magnetic head | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8023377B2 | Optical disc device and tracking and slider control method | Physics | 1 | Active |
| US8315131B2 | Optical disc apparatus and back off control method for objective lens | Physics | 0 | Active |
| US11558000B2 | Motor control device and electric vehicle system using the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US12149183B2 | Inverter control device and electric vehicle system | Emerging Cross-Sectional Technologies | 0 | Active |
| US11984821B2 | Inverter control device | Performing Operations; Transporting | 0 | Active |
| US11646690B2 | Motor control device and electric vehicle system | Emerging Cross-Sectional Technologies | 0 | Active |
| US12170497B2 | Inverter control device and electric vehicle system | Emerging Cross-Sectional Technologies | 0 | Active |
| US10826410B2 | Inverter device and electric vehicle | Emerging Cross-Sectional Technologies | 0 | Active |
| US7760604B2 | Optical disc device and tracking control method | Physics | 0 | Active |
| US10873285B2 | Inverter drive device and electrically driven vehicle system using the same | Electricity | 0 | Active |
| US9484057B2 | Hologram recording and reproducing apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.