Takahiro Nakai
24Patents
7h-index
49Co-inventors
69Inventor score
Filing activity: Aug 17, 1988 → Jan 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6009236A | Digital video signal record and playback device and method for giving priority to a center of an I frame | Electricity | 58 | Expired |
| US6938171B1 | Gateway system and recording medium | Physics | 29 | Expired |
| US6134382A | Digital video signal record and playback device and method for giving priority to a center of an I frame | Electricity | 16 | Expired |
| US4906942A | Frequency demodulator with reversal phenomenon compensation | Electricity | 12 | Expired |
| USD717990S1 | Organic light emitting diode device | General | 12 | Active |
| US4862099A | Digital FM demodulator with distortion correction | Electricity | 12 | Expired |
| US7343083B2 | Digital video signal record and playback device and method for selectively reproducing desired video information from an optical disk | Electricity | 8 | Expired |
| US6549717B2 | Digital video signal record and playback device and method for giving priority to a center of an I frame | Electricity | 7 | Expired |
| US7028340B1 | Apparatus, a system and method for controlling access to contents | Physics | 5 | Expired |
| US7340150B2 | Digital video signal record and playback device and method for selectively reproducing desired video information from an optical disk | Electricity | 4 | Expired |
| US6947342B2 | Semiconductor storage device and information apparatus using the same | Physics | 3 | Expired |
| US7659777B2 | Offset adjustment device, semiconductor device, display device, offset adjustment method, noise detection device, and noise detection method | Electricity | 3 | Active |
| US9174368B2 | Retardation film, method of producing the same and image display device | Physics | 1 | Active |
| US8859032B2 | Organic el device manufacturing method and apparatus | Electricity | 1 | Active |
| US9516721B2 | Organic electro-luminescence light-emitting device and production method of the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US11577491B2 | Metallic lustrous member with radio wave transmissibility, article using same, and production method therefor | Chemistry; Metallurgy | 1 | Active |
| US9030098B2 | Wireless electric power supply type light-emitting element and light-emitting device | Emerging Cross-Sectional Technologies | 0 | Active |
| US10533763B2 | Controller of air-conditioning system and method for controlling air-conditioning system | Physics | 0 | Active |
| US11217137B2 | Drive circuit and display device | Physics | 0 | Active |
| US11754330B2 | Refrigeration cycle apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US9147861B2 | Surface light-emitting object | Electricity | 0 | Active |
| US10061277B2 | Servo control device with coarse and fine movement | Physics | 0 | Active |
| US11011099B2 | Driving circuit and display device | Physics | 0 | Active |
| US11441808B2 | Air-conditioning apparatus and air-conditioning method | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.