Tomohito Ishida
27Patents
7h-index
35Co-inventors
69Inventor score
Filing activity: Jun 18, 1999 → Nov 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7751737B2 | Image forming apparatus which corrects charge potential on an image carrier | Physics | 45 | Active |
| US6996358B2 | Toner kit, toner, method for forming an image, and image forming apparatus | Physics | 22 | Expired |
| US11126097B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 9 | Active |
| US11249407B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 9 | Active |
| US11237493B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 9 | Active |
| US11181837B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 9 | Active |
| US7381509B2 | Toner kit, deep-color cyan toner, pale-color cyan toner, and image forming method | Physics | 8 | Active |
| US6803932B2 | Image forming apparatus | Emerging Cross-Sectional Technologies | 7 | Expired |
| US11392074B2 | Electrophotographic photosensitive member having outer surface with first and second structure groups, the first structure group having a smaller appearance period and a lower height than the second structure group | Physics | 6 | Active |
| US6879788B2 | Image forming apparatus with density detecting means | Physics | 5 | Expired |
| US7512349B2 | Image forming apparatus and method featuring correction for compensating differences in surface potential characteristics of an image supporting body | Physics | 5 | Active |
| US9026011B2 | Image forming apparatus | Physics | 5 | Active |
| US7288356B2 | Toner kit, deep-color cyan toner, pale-color cyan toner, and image forming method | Physics | 4 | Expired |
| US6205306A | Electrophotographic apparatus | Physics | 3 | Expired |
| US11782353B2 | Method for producing electrophotographic photosensitive member | Physics | 2 | Active |
| US10539888B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 1 | Active |
| US7343112B2 | Image forming apparatus using hypochromatic toner and hyperchromatic toner | Physics | 1 | Active |
| US9488945B2 | Image forming apparatus and image forming method for reducing toner bearing amount, and storage medium thereof | Physics | 1 | Active |
| US7603064B2 | Unit for tone-processing image data using screen pattern with different screen angles for toners of same hue and different density | Physics | 1 | Active |
| US7792447B2 | Image heating apparatus with temperature control in relation to glass transition of toner | Physics | 0 | Active |
| US12153370B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 0 | Active |
| US12248273B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 0 | Active |
| US7643174B2 | Semiconductor laser drive control device | Physics | 0 | Active |
| US9454103B2 | Image forming apparatus | Physics | 0 | Active |
| US12153376B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.