Ryosuke Fujii
30Patents
3h-index
45Co-inventors
63Inventor score
Filing activity: Jan 24, 1979 → Jul 24, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8141517B2 | Expandable pet pen | Emerging Cross-Sectional Technologies | 54 | Active |
| US4217762A | Ice making equipment | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US10705441B1 | Electrophotographic photoreceptor, process cartridge, and image-forming apparatus | Physics | 4 | Active |
| US11048181B2 | Electrophotographic photoreceptor, process cartridge, and image-forming apparatus | Chemistry; Metallurgy | 2 | Active |
| US11892780B1 | Image forming apparatus and process cartridge | Physics | 1 | Active |
| US11195697B2 | Plasma control apparatus | Electricity | 1 | Active |
| US7858567B2 | Skin cleansing compositions | Human Necessities | 1 | Active |
| US11016404B2 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 1 | Active |
| US10641386B2 | Automatic transmission control decice | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9040476B2 | Skin cleanser composition | Chemistry; Metallurgy | 0 | Active |
| US10663897B2 | Fixing member, method for producing fixing member, fixing device, and image forming apparatus | Physics | 0 | Active |
| US12117741B1 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 0 | Active |
| US11066543B2 | Dispersant attached polytetrafluoroethylene particle, composition, layered material, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Chemistry; Metallurgy | 0 | Active |
| US7435710B2 | Detergent composition comprising a sub-stoichiometric alkoxylated phosphate ester | Chemistry; Metallurgy | 0 | Active |
| US10195135B2 | Organopolysiloxane graft polymer | Human Necessities | 0 | Active |
| US11693329B2 | Fluorine-containing resin particle, composition, layer-shaped article, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 0 | Active |
| US11099492B2 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 0 | Active |
| US10514621B2 | Electrophotographic photoreceptor, process cartridge, image forming apparatus, and imide compound | Physics | 0 | Active |
| US10459389B2 | Image forming apparatus | Physics | 0 | Active |
| US7183244B2 | Detergent compositions comprising a mixture of phosphate esters | Chemistry; Metallurgy | 0 | Expired |
| US9458249B2 | Cellulose ether containing cationic group | Human Necessities | 0 | Active |
| US11333987B2 | Fluorine-containing resin particle, composition, layer-shaped article, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 0 | Active |
| US9456977B2 | Cationized glycerolated cellulose | Chemistry; Metallurgy | 0 | Active |
| US9874844B2 | Image forming system and image forming apparatus | Physics | 0 | Active |
| US11958707B2 | Sheet transport roller rubber composition and sheet transport roller | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.