Hiroshi Sugimura
38Patents
7h-index
46Co-inventors
69Inventor score
Filing activity: Dec 18, 1985 → Aug 16, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5489496A | Electrophotographic photoconductor and a method for forming the same | Physics | 44 | Expired |
| US6322940A | Electrophotographic photoreceptor and electrophotographic image forming process | Emerging Cross-Sectional Technologies | 29 | Expired |
| US7789733B2 | Method of manufacturing microneedle | Performing Operations; Transporting | 18 | Active |
| US6143453A | Electro-photographic photoreceptor and image-forming apparatus using same | Physics | 12 | Expired |
| US4715121A | Grip scissors | Performing Operations; Transporting | 12 | Expired |
| US5492786A | Electrophotographic photoreceptor | Physics | 10 | Expired |
| US8377364B2 | Method of manufacturing microneedle | Performing Operations; Transporting | 9 | Active |
| US5116706A | 1,2,4,5-benzoylenebis(naphtho[1,8-de]pyrimidine) compounds and their use in photosensitive layers | Physics | 7 | Expired |
| US8292696B2 | Method of manufacturing microneedle | Performing Operations; Transporting | 6 | Active |
| US6150063A | Electrophotographic photoconductor and image formation method | Physics | 6 | Expired |
| US8876575B2 | Microneedle and method of manufacturing microneedle | Performing Operations; Transporting | 5 | Active |
| US9238384B2 | Method of manufacturing microneedle | Performing Operations; Transporting | 4 | Active |
| US5789126A | Electrophotographic photoconductor | Chemistry; Metallurgy | 3 | Expired |
| US7181722B2 | Method of dividing circuit pattern, method of manufacturing stencil mask, stencil mask and method of exposure | Physics | 2 | Expired |
| US7449269B2 | Electrophotographic photoreceptor having defined mobility of electric charges in photosensitive layer and image forming device incorporating same | Physics | 2 | Expired |
| US7625681B2 | Asymmetric bis-hydroxyenamine compound, electrophotographic photoreceptor and image forming apparatus | Physics | 1 | Active |
| US4963451A | 1,2,4,5-benzoylenebis(anthraquinone[1,2-d]imidazole) compounds and photosensitive members containing them | Physics | 1 | Expired |
| US6780553B2 | Electrophotographic photoreceptor and management system of the same | Physics | 1 | Expired |
| US6775497B2 | Electrophotographic photosensitive body with hollow base and filler element, electrophotographic apparatus using same | Physics | 1 | Expired |
| US6889020B2 | VIBRATION INSULATING MEMBER FITTING METHOD, VIBRATION INSULATING MEMBER FITTING DEVICE, VIBRATION INSULATING MEMBER, VIBRATION INSULATING MEMBER RECOVERING METHOD, AND VIBRATION INSULATING MEMBER RECOVERING DEVICE | Physics | 1 | Expired |
| US9533131B2 | Hollow needlelike object and method for manufacturing hollow needlelike object | Human Necessities | 1 | Active |
| US5393636A | Process for producing toner for the development of an electric image | Physics | 1 | Expired |
| US8367287B2 | Electrophotographic photoconductor, method of producing the same and image forming apparatus | Physics | 0 | Active |
| US10056555B2 | Photoelectric conversion element and method for manufacturing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US8343697B2 | Electrophotographic photoconductor and image forming apparatus provided with the same | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.