Yoshio Arai
52Patents
16h-index
42Co-inventors
84Inventor score
Filing activity: Jan 4, 1978 → Mar 21, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4542378A | Method of processing documents | Electricity | 49 | Expired |
| US4303948A | Image transcribing system | Electricity | 37 | Expired |
| US4468703A | Image signal processing device | Electricity | 37 | Expired |
| US4504969A | Rectangular pattern recognition apparatus | Electricity | 32 | Expired |
| US4882644A | Magnetic head supporting mechanism | Physics | 32 | Expired |
| US4840428A | Head rest adjusting device | Performing Operations; Transporting | 28 | Expired |
| US4604260A | Method of producing electrolytic capacitor with Al-Ti anode body | Electricity | 23 | Expired |
| US4298895A | Visual image noise eliminating system | Electricity | 22 | Expired |
| US5459477A | Display control device | Physics | 22 | Expired |
| US4190258A | Fluorocarbon resin seal and method of making same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4243233A | Seal ring having a tapered surface, and a sealing device | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4466123A | Apparatus and method for correcting contour line pattern images | Physics | 19 | Expired |
| US4867507A | Structure for fixing the terminal end of a trim cover assembly in an automotive seat | Performing Operations; Transporting | 19 | Expired |
| US4212473A | Multiple seal ring having a tapered surface, and a sealing device | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4440513A | Character shaping device | Physics | 18 | Expired |
| US4459611A | Image conversion system | Electricity | 17 | Expired |
| US4800285A | Flame detecting arrangement for detecting a flame through horizontal and vertical scanning of a supervisory region by using a photodetector | Physics | 16 | Expired |
| US4559644A | Image processing apparatus and method for recognizing only desired patterns | Electricity | 15 | Expired |
| US4747603A | Oil seal comprising lip seal with thermal expansion controlled reinforcing ring | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4434431A | Multilevel image printing device | Electricity | 13 | Expired |
| US4422153A | Oblique projection original and oblique projection original forming apparatus and method | Physics | 13 | Expired |
| US4750142A | Flame detector | Physics | 13 | Expired |
| US4212474A | Seal ring having tapered surface and sealing device incorporating the same | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4755687A | System and method for detecting flames | Physics | 12 | Expired |
| US4472710A | Spatula-shaped light pen | Physics | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.