Yoshiaki Tanaka
329Patents
34h-index
320Co-inventors
93Inventor score
Filing activity: Mar 18, 1974 → Aug 31, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5419543A | Paper feeding apparatus for printer | Emerging Cross-Sectional Technologies | 157 | Expired |
| US4382892A | Benzoxazine derivatives | Chemistry; Metallurgy | 92 | Expired |
| US5142511A | Piezoelectric transducer | Performing Operations; Transporting | 91 | Expired |
| US5362761A | Process for fabricating porous silicone product | Chemistry; Metallurgy | 89 | Expired |
| US5960398A | Copyright information embedding apparatus | Physics | 88 | Expired |
| US6560403B1 | Signal encoding apparatus, audio data transmitting method, audio data recording method, audio data decoding method and audio disc | Physics | 77 | Expired |
| US4612665A | Graphic equalizer with spectrum analyzer and system thereof | Electricity | 75 | Expired |
| US4870313A | Piezoelectric resonators for overtone oscillations | Electricity | 64 | Expired |
| US5081604A | Finite impulse response (FIR) filter using a plurality of cascaded digital signal processors (DSPs) | Electricity | 62 | Expired |
| US6889208B1 | Contents sale system | Electricity | 55 | Expired |
| US5404406A | Method for controlling localization of sound image | Electricity | 52 | Expired |
| US6381403B1 | Audio disk of improved data structure and reproduction apparatus thereof | Electricity | 51 | Expired |
| US5617191A | Toner conveyor roller and image forming apparatus having the same | Physics | 50 | Expired |
| US5489747A | Developing device for an image forming apparatus | Physics | 50 | Expired |
| US4665494A | Spectrum display device for audio signals | Physics | 49 | Expired |
| US7113927B1 | DATA DISTRIBUTION SYSTEM, DATA DISTRIBUTION METHOD, PORTABLE TERMINAL WITH DATA RECEIVING CAPABILITY, PORTABLE TERMINAL WITH DATA TRANSMITTING/RECEIVING CAPABILITY, RECORDING MEDIUM ONTO WHICH DATA CONTENT IS RECORDED, ENCODING APPARATUS, AND DECODING APPARATUS | Physics | 47 | Expired |
| US5826144A | Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller | Physics | 43 | Expired |
| US5625440A | Developing device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scattering | Physics | 42 | Expired |
| US4875063A | Electrostatic recording apparatus | Physics | 42 | Expired |
| US6757659B1 | Audio signal processing apparatus | Physics | 41 | Expired |
| US5122993A | Piezoelectric transducer | Performing Operations; Transporting | 41 | Expired |
| US5697026A | Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships | Physics | 40 | Expired |
| US5689782A | Developing apparatus for electronic photographic recording equipment, having two developer transfer rollers | Physics | 39 | Expired |
| US5666625A | Device for electrostatically developing a latent image on an image carrier | Physics | 38 | Expired |
| US4931622A | Electronic card receiving device and ejection mechanism | Physics | 38 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.