Yasutake Yamaguchi
64Patents
18h-index
22Co-inventors
84Inventor score
Filing activity: Jan 23, 1997 → May 26, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD422304S | Toner cartridge | General | 77 | Expired |
| USD442216S | Toner cartridge | General | 68 | Expired |
| USD423559S | Image forming device for printer | General | 57 | Expired |
| USD447511S | Image forming device for printer | General | 56 | Expired |
| US7426113B2 | Electronic device | Electricity | 40 | Active |
| USD586384S1 | Printer | General | 34 | Expired |
| USD535325S1 | Printer | General | 31 | Expired |
| USD596226S1 | Printer | General | 29 | Expired |
| USD545357S1 | Printer | General | 27 | Expired |
| USD723562S1 | Scanner | General | 27 | Active |
| USD421270S | Ink cartridge | General | 26 | Expired |
| USD556257S1 | Printer | General | 25 | Expired |
| USD616927S1 | Printer | General | 25 | Expired |
| USD613792S1 | Printer | General | 24 | Expired |
| USD479556S1 | Printer with copying, scanning, and facsimile functions | General | 23 | Expired |
| USD529950S1 | Printer | General | 23 | Expired |
| USD617829S1 | Printer | General | 22 | Expired |
| USD550768S1 | Printer | General | 21 | Expired |
| USD480732S1 | Printer with copying, scanning and facsimile functions | General | 18 | Expired |
| USD766246S1 | Scanner | General | 18 | Active |
| USD493469S1 | Printer with copying, scanning, and facsimile functions | General | 16 | Expired |
| USD534209S1 | Printer | General | 16 | Expired |
| USD545883S1 | Ink ribbon cartridge | General | 11 | Expired |
| USD391983S | Stamp | General | 11 | Expired |
| US7636528B2 | Image-forming device including image-forming section, paper supply unit, and discharge unit and ornamental member therefor | Physics | 11 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.