Naoki Okuda
20Patents
10h-index
53Co-inventors
78Inventor score
Filing activity: Nov 29, 1974 → Mar 31, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4017339A | Flux for use in submerged arc welding of steel | Performing Operations; Transporting | 33 | Expired |
| US4841329A | Developing device accommodating apparatus and image forming apparatus and developing device | Physics | 31 | Expired |
| US4046988A | Method of preventing base metal end crack in arc welding and end tab used therefor | Performing Operations; Transporting | 31 | Expired |
| US4214141A | Multiple electrode submerged arc welding method | Performing Operations; Transporting | 28 | Expired |
| US4841336A | Image forming apparatus with developing device accommodating means | Physics | 21 | Expired |
| US6522862B2 | Compact image forming apparatus with vertical arrangement | Electricity | 16 | Expired |
| US4941018A | Developing device accommodating apparatus and image forming apparatus and developing device | Physics | 13 | Expired |
| US4873547A | Sheet conveying apparatus | Physics | 12 | Expired |
| US4019018A | Process for narrow gap welding of aluminum alloy thick plates | Performing Operations; Transporting | 11 | Expired |
| US4503129A | Shielded metal arc welding electrode for Cr-Mo low alloy steels | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4764224A | Baked flux for submerged arc welding | Performing Operations; Transporting | 9 | Expired |
| US4338142A | Melting flux composition for submerged arc welding | Performing Operations; Transporting | 9 | Expired |
| US4922300A | Image forming apparatus and developing device therefor | Physics | 7 | Expired |
| US4561888A | Welding wire for use in submerged arc welding of Cr-Mo steels | Performing Operations; Transporting | 7 | Expired |
| US5737667A | Image forming apparatus having a gripper portion | Physics | 7 | Expired |
| US4037078A | Process for welding aluminum and aluminum alloys in horizontal welding position | Performing Operations; Transporting | 6 | Expired |
| US4905046A | Copying apparatus having means for moving the optical scanning system to a predetermined position when an abnormality is detected | Physics | 4 | Expired |
| US4908662A | Automatic original feeding apparatus having an image area designating function | Physics | 4 | Expired |
| US4029933A | Method of vertical welding of aluminum and aluminum alloys | Performing Operations; Transporting | 3 | Expired |
| US7973125B2 | Method of evaluating polymide dissolution rate, method of producing polymide, and polymide obtained using same methods | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.