Tomishige Yatsugi
31Patents
5h-index
30Co-inventors
69Inventor score
Filing activity: Oct 20, 1987 → May 6, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6226449A | Apparatus for recording and reproducing digital image and speech | Electricity | 71 | Expired |
| US6590609B1 | Image signal recording system | Electricity | 62 | Expired |
| US5148329A | Magnetic recording/reproducing circuit system including a temperature controlled amplitude control circuit for a video signal | Electricity | 7 | Expired |
| US5854874A | Image recording/reproducing system | Electricity | 6 | Expired |
| US4956729A | Video signal preamplifier circuit | Electricity | 5 | Expired |
| US7106954B2 | Digital camcorder | Electricity | 5 | Expired |
| US5260843A | Magnetic recording and reproducing apparatus with individual correction of amplitude variations of recording currents supplied to plural rotary magnetic heads | Electricity | 3 | Expired |
| US9787240B2 | Controller and control method for motor | Electricity | 3 | Active |
| US9647603B2 | Controller and control method for electric motor | Electricity | 3 | Active |
| US10218302B2 | Controller and control method for electric motor | Electricity | 2 | Active |
| US10097129B2 | Drive controller and drive control method for electric motor | Emerging Cross-Sectional Technologies | 2 | Active |
| US9917538B2 | Motor driving circuit, motor driving system, electric power steering system, electric brake system, and vehicle driving system | Emerging Cross-Sectional Technologies | 1 | Active |
| US9806643B2 | Drive control apparatus for electric motor | Electricity | 1 | Active |
| US9985567B2 | Electric motor drive device and control method therefor | Electricity | 1 | Active |
| US5138505A | Tracking apparatus for a magnetic recording and playback apparatus with independent control of audio head with respect to video head | Physics | 1 | Expired |
| US10840842B2 | Motor driving device and method for measuring phase current in motor driving device | Electricity | 1 | Active |
| US9438148B2 | Motor drive device | Electricity | 1 | Active |
| US10243503B2 | Drive controller and drive control method for electric motor | Electricity | 1 | Active |
| US10800444B2 | Electric driving device and electric power steering device | Electricity | 0 | Active |
| US10562563B2 | Device and method for controlling electric motor | Electricity | 0 | Active |
| US10924048B2 | Inverter control device, motor drive device, and electric power steering apparatus | Electricity | 0 | Active |
| US10797570B2 | Electric drive device and electric power steering apparatus | Electricity | 0 | Active |
| US10404202B2 | Electronic control device and control method thereof | Electricity | 0 | Active |
| US10363957B2 | Device and method for controlling electric motor | Electricity | 0 | Active |
| US8224151B2 | Apparatus for recording and reproducing digital image and speech | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.