Takeo Kawanami
90Patents
11h-index
72Co-inventors
77Inventor score
Filing activity: Jan 10, 2007 → Feb 15, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7567769B2 | Electrophotographic color image forming apparatus | Physics | 74 | Active |
| US8145095B2 | Electrophotographic image forming apparatus with movable tray for supporting a cartridge | Physics | 47 | Active |
| US7761024B2 | Electrophotographic color image forming apparatus carrying process cartridge on a movable member | Physics | 38 | Active |
| US7907866B2 | Color electrophotographic image forming carrying process cartridges on a movable member movable in a direction crossing a longitudinal direction of a photosensitive drum of the cartridges | Physics | 30 | Active |
| US8442412B2 | Electrophotographic color image forming apparatus carrying process cartridges on a movable member | Physics | 22 | Active |
| US8175487B2 | Electrophotographic color image forming apparatus carrying process cartridges on a movable member | Physics | 21 | Active |
| US9002230B2 | Electrophotographic color image forming apparatus with movable cartridge carrying member and associated electrical contacts | Physics | 20 | Active |
| US8862014B2 | Electrophotographic color image forming apparatus with movable member for supporting a cartridge | Physics | 20 | Active |
| US8463157B2 | Electrophotographic image forming apparatus with movable tray for mounting cartridges | Physics | 19 | Active |
| US8843023B2 | Electrophotographic image forming apparatus with cartridge mounting tray and member regulating movement of the tray | Physics | 19 | Active |
| US8112014B2 | Color electrophotographic image forming apparatus | Physics | 12 | Active |
| US8145096B2 | Image forming apparatus having a process cartridge removable from a main body of the apparatus having improved usability | Physics | 8 | Active |
| US11392082B2 | Cartridge with a mechanism for transmitting a force to a developing roller of the cartridge | Physics | 7 | Active |
| US9158238B2 | Image forming apparatus using stretch member and contact member to maintain potential with current flowing from current supply member to intermediate transfer belt | Physics | 6 | Active |
| US8355650B2 | Color electrophotographic image forming apparatus | Physics | 6 | Active |
| US10488810B2 | Image forming apparatus having detachable transfer unit | Physics | 5 | Active |
| US8965256B2 | Image forming apparatus | Physics | 4 | Active |
| US9417568B2 | Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transfer belt | Physics | 4 | Active |
| US10289066B2 | Image forming apparatus | Physics | 4 | Active |
| US10739723B2 | Image forming apparatus | Physics | 3 | Active |
| US9141038B2 | Image forming apparatus | Physics | 3 | Active |
| US9817342B2 | Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transer belt | Physics | 3 | Active |
| US9546693B2 | Drive apparatus and belt unit for image forming apparatus | Physics | 3 | Active |
| US11829100B2 | Electrophotographic image forming apparatus and catridge | Physics | 3 | Active |
| US9335726B2 | Image forming apparatus having a transfer unit frame | Physics | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.