Shigeto Hashiba
14Patents
5h-index
35Co-inventors
66Inventor score
Filing activity: Sep 9, 1991 → Mar 2, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7580655B2 | Charging roller, electrophotographic process cartridge, and image forming apparatus | Physics | 17 | Active |
| US5188916A | Electrophotographic photoreceptor having a zirconium and silicon-containing underlayer | Physics | 12 | Expired |
| US6010572A | Dip coating apparatus for manufacturing electrophotographic photoreceptor | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5238467A | Abrasive suspension for wet honing and surface treating method using the same | Performing Operations; Transporting | 8 | Expired |
| US5550000A | Process for producing electrophotographic photoreceptor | Chemistry; Metallurgy | 7 | Expired |
| US8802337B2 | Electrophotographic photoreceptor, image forming apparatus, and process cartridge | Physics | 4 | Active |
| US8808953B2 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 1 | Active |
| US8492059B2 | Electrophotographic photoreceptor, process cartridge and image forming apparatus | Physics | 1 | Active |
| US9341963B2 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 1 | Active |
| US8877412B2 | Image forming apparatus and process cartridge | Physics | 0 | Active |
| US10036969B2 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 0 | Active |
| US8956793B2 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 0 | Active |
| US9291923B2 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Physics | 0 | Active |
| US8574797B2 | Electrophotographic photoconductor, process cartridge, and electrophotographic image-forming apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.