Koichi Kudo
77Patents
12h-index
88Co-inventors
87Inventor score
Filing activity: Jun 27, 1983 → Jun 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6925279B2 | Belt moving device and image forming apparatus including the same | Physics | 35 | Expired |
| US6947693B2 | Image forming apparatus including rotary member speed detection mechanism | Physics | 23 | Expired |
| US4577141A | System for driving a movable stage | Physics | 22 | Expired |
| US6842602B2 | Drive control device and image forming apparatus including the same | Physics | 22 | Expired |
| US5367188A | Photodiode array device and method for producing same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7532370B2 | Optical encoder, motor driver and image forming apparatus | Electricity | 18 | Active |
| US5818062A | Original edge detecting system and optical sensor using distance detecting light-receiving means | Electricity | 16 | Expired |
| US5475245A | Field-effect voltage regulator diode | Electricity | 14 | Expired |
| US5729024A | Original edge detecting system and optical sensor | Electricity | 14 | Expired |
| US9776819B2 | Sheet conveying device and image forming apparatus incorporating the sheet conveying device | Performing Operations; Transporting | 13 | Active |
| US7174237B2 | Endless-moving-member driving unit, image forming apparatus, photosensitive-element driving unit, and method of degradation process for endless moving-member | Physics | 12 | Expired |
| US6816178B2 | Method and apparatus for color image forming capable of performing a precise synchronization between toner image forming per color and its overlaying | Electricity | 12 | Expired |
| US6774355B2 | Optical encoder | Physics | 11 | Expired |
| US6252682A | Document sensing device for an image forming apparatus | Physics | 10 | Expired |
| US5929436A | Optical sensor including a first and second converging optical system for edge detection | Electricity | 10 | Expired |
| US7526230B2 | Mark sensing device, turnable body driving device and image forming apparatus | Physics | 9 | Expired |
| US5633526A | Photodiode array and method for manufacturing the same | Electricity | 8 | Expired |
| US5523610A | Photodiode array and method for manufacturing the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7379683B2 | Mark detector, drive controller, belt drive unit, and image forming apparatus | Physics | 7 | Active |
| US8351830B2 | Belt conveying device and image forming apparatus | Physics | 7 | Active |
| US8219003B2 | Drive control device of a rotation member, method for drive control of a rotation member, and image forming apparatus including the drive control device | Physics | 5 | Active |
| US5511421A | Acceleration sensor | Physics | 5 | Expired |
| US5300453A | Method for producing semiconductor device | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8838014B2 | Bookbinding system using unfixed toner image as adhesive | Physics | 4 | Active |
| US8412081B2 | Belt meandering preventing device and image forming apparatus including the same | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.