Junya Sumida
9Patents
1h-index
20Co-inventors
43Inventor score
Filing activity: Mar 30, 2016 → Dec 11, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US11762312B2 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Physics | 1 | Active |
| US11378895B2 | Image forming apparatus with developing roller separation processing | Physics | 0 | Active |
| US12259675B2 | Process cartridge including developing cartridge having developing holder, and drum cartridge having elastic member that can be connected to developing holder | Physics | 0 | Active |
| US11231659B2 | Image forming apparatus which switches from color to monochrome mode with charging and developing bias reduction | Physics | 0 | Active |
| US12339616B2 | Image forming apparatus including detachable process cartridge having handle on developing unit | Physics | 0 | Active |
| US12210300B2 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Physics | 0 | Active |
| US12282290B2 | Process cartridge including drum cartridge having first holder, developing cartridge having second holder, and plate for connecting first holder and second holder to each other | Physics | 0 | Active |
| US9625870B2 | Image forming apparatus having photosensitive members and blades in contact with respective photosensitive members | Physics | 0 | Active |
| USD1095670S1 | Photosensitive drum unit | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.