Haruhisa Oshida
23Patents
12h-index
23Co-inventors
77Inventor score
Filing activity: Jan 30, 1995 → Feb 26, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5878310A | Process cartridge, assembling method for process cartridge and electrophotographic image forming apparatus | Physics | 172 | Expired |
| US5943528A | Toner accommodating container with a gripping cover feature usable with a process cartridge, a process cartridge using the same, and an apparatus using the process cartridge | Physics | 71 | Expired |
| US5749027A | Process cartridge, process cartridge assembly method, and image forming apparatus | Physics | 67 | Expired |
| US5774766A | Process cartridge, process cartridge assembly method, and electrophotographic image forming apparatus | Physics | 61 | Expired |
| US5890036A | Process cartridge, process cartridge assembly method, and image forming apparatus | Physics | 59 | Expired |
| US5920752A | Process cartridge including a toner frame swingably coupled with a drum frame feature and a grip feature, and an apparatus using the same | Physics | 53 | Expired |
| US5899602A | Process cartridge, process cartridge assembly method, and image forming apparatus | Physics | 42 | Expired |
| US5589918A | Process cartridge, assembling method therefor and electrophotographic apparatus | Physics | 32 | Expired |
| US5682574A | Developing apparatus having reciprocating cleaning device for photodetector | Physics | 28 | Expired |
| US6408147B1 | Image forming apparatus and sheet stacking system | Performing Operations; Transporting | 19 | Expired |
| US5564690A | Sheet supply apparatus | Performing Operations; Transporting | 18 | Expired |
| US7515312B2 | Image scanning device and image forming device | Electricity | 14 | Active |
| US5655175A | Developing apparatus having light transmitting window | Physics | 12 | Expired |
| US7463392B2 | Image reader and image forming apparatus | Electricity | 12 | Active |
| US8064105B2 | Image scanning device and image forming device | Electricity | 11 | Active |
| US7755812B2 | Image reading apparatus, and image expansion and contraction correcting method | Electricity | 11 | Active |
| US8988739B2 | Image reading apparatus | Electricity | 4 | Active |
| US7548351B2 | Image reading device and image forming apparatus | Electricity | 3 | Active |
| US8149473B2 | Image reading apparatus | Electricity | 3 | Active |
| US8020861B2 | Sheet conveyance device and image forming apparatus | Performing Operations; Transporting | 3 | Active |
| USD479729S1 | Image forming apparatus | General | 3 | Expired |
| US8020862B2 | Sheet conveyance device, image forming apparatus and image reading apparatus | Performing Operations; Transporting | 2 | Active |
| US8172226B2 | Sheet conveyance device and image forming apparatus | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.