Yukio Kubo
47Patents
9h-index
39Co-inventors
75Inventor score
Filing activity: Feb 28, 1990 → Apr 29, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9429906B2 | Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion | Physics | 52 | Active |
| US8565639B2 | Process cartridge and image forming apparatus | Physics | 49 | Active |
| US8583001B2 | Developing device and process cartridge | Physics | 44 | Active |
| US9836020B2 | Process cartridge with force receiving portion configured to receive a force to move a developing roller | Physics | 32 | Active |
| US10168664B2 | Process cartridge including protrusion to receive a force for moving a developer roller | Physics | 27 | Active |
| US10386786B2 | Cartridge, member constituting cartridge, and image forming apparatus | Physics | 14 | Active |
| US10401788B2 | Image forming apparatus including a movable engageable spacing member and process cartridge including a force receiving portion | Physics | 10 | Active |
| US10591868B2 | Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion | Physics | 10 | Active |
| US11131960B2 | Cartridge, member constituting cartridge, and image forming apparatus | Physics | 10 | Active |
| US11156954B2 | Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion | Physics | 9 | Active |
| US11307529B2 | Cartridge, member constituting cartridge, and image forming apparatus | Physics | 6 | Active |
| US11314199B2 | Cartridge, member constituting cartridge, and image forming apparatus | Physics | 6 | Active |
| US11204566B2 | Image forming apparatus and developing cartridge | Physics | 4 | Active |
| US5160708A | Dry type simultaneous desulfurization and dedusting apparatus and method of operation therefor | Performing Operations; Transporting | 3 | Expired |
| US9483016B2 | Photosensitive drum and process cartridge | Physics | 3 | Active |
| US11977344B2 | Image forming apparatus and image forming system | Physics | 2 | Active |
| US11698601B2 | Cartridge, member constituting cartridge, and image forming apparatus | Physics | 2 | Active |
| US11693355B2 | Cartridge, member constituting cartridge, and image forming apparatus | Physics | 2 | Active |
| US11789378B2 | Image forming apparatus and developing cartridge | Physics | 1 | Active |
| US11754970B2 | Process cartridge having a protrusion with a surface configured to receive a force to move a frame of the process cartridge | Physics | 1 | Active |
| USD873337S1 | Process cartridge for image forming apparatus | General | 1 | Active |
| US11599058B2 | Image forming apparatus and process cartridge | Physics | 1 | Active |
| USD873338S1 | Process cartridge for image forming apparatus | General | 1 | Active |
| US9063461B2 | Image forming apparatus provided with an agitation member configured to be rotated | Physics | 1 | Active |
| US11531301B2 | Cartridge including a member movable relative to a frame of the cartridge and a regulating member for regulating movement of the movable member | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.