Takeshi Nakajima
200Patents
20h-index
213Co-inventors
93Inventor score
Filing activity: Dec 18, 1973 → Nov 11, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5490126A | Apparatus for recording and reproducing data on a disk | Physics | 107 | Expired |
| US5636194A | Method of recording and reproducing data on a disk | Physics | 83 | Expired |
| US4477807A | Radio pager with display device | Electricity | 71 | Expired |
| US7862272B2 | Clip | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US5099881A | Flow dividing structure of mass flow controller | Emerging Cross-Sectional Technologies | 54 | Expired |
| US5719843A | Method of maximum likelihood decoding and digital information playback apparatus | Electricity | 49 | Expired |
| US8197087B2 | Peritoneal dialysis patient connection system using ultraviolet light emitting diodes | Human Necessities | 42 | Active |
| USD856870S1 | Rear bumper for automobile | General | 37 | Active |
| US6678230B2 | Waveform equalizer for a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium | Physics | 37 | Expired |
| US6490395B1 | Arrayed waveguide grating and method for compensating optical transmitting center wavelength of light traveling through the same | Physics | 34 | Expired |
| US4679953A | Paper feeding and ejecting device for a printing apparatus | Emerging Cross-Sectional Technologies | 32 | Expired |
| US9687646B2 | Peritoneal dialysis connection system and method for using ultraviolet light emitting diodes | Human Necessities | 26 | Active |
| US8636454B2 | Fastener | Emerging Cross-Sectional Technologies | 26 | Active |
| USD843899S1 | Front bumper for automobile | General | 25 | Active |
| US7158464B2 | Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus | Physics | 24 | Expired |
| US5574322A | Motor, a printer having such a motor and a disk drive system having such a motor | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4479261A | Battery saving circuit for paging receiver | Emerging Cross-Sectional Technologies | 23 | Expired |
| US7145848B2 | Optical disk apparatus using tilt and aberration correction control system | Physics | 23 | Expired |
| US6807134B2 | Asymmetry detection apparatus, jitter detection apparatus, and recording/reproduction apparatus | Physics | 22 | Expired |
| US7808246B2 | Apparatus and method for verifying a seal between multiple chambers | Human Necessities | 20 | Active |
| USD830905S1 | Automobile and/or toy replica thereof | General | 19 | Active |
| US7035327B2 | Adaptive equalizer for use in information reproducing apparatus | Physics | 19 | Expired |
| US6195481A | Array waveguide diffraction grating optical multiplexer/demultiplexer | Physics | 19 | Expired |
| US7536755B2 | Clip having engaging pawl portions and projecting portions | Emerging Cross-Sectional Technologies | 18 | Active |
| US6586531B2 | Polyolefin masterbatch and composition suitable for injection molding | Chemistry; Metallurgy | 18 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.