Chikara Ishihara
20Patents
5h-index
51Co-inventors
68Inventor score
Filing activity: Nov 16, 2005 → Mar 25, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8056671B2 | Exhaust-gas purification device disposition structure of vehicle | Emerging Cross-Sectional Technologies | 10 | Active |
| US7773933B2 | Cleaning device and method for an electrophotographic photoconductor | Physics | 6 | Active |
| US8824906B2 | Image forming apparatus capable of printing long sheets | Physics | 5 | Active |
| US8117833B2 | Method and system using a reduction catalyst to reduce nitrate oxide | Emerging Cross-Sectional Technologies | 5 | Active |
| US7557960B2 | Image forming apparatus | Electricity | 5 | Active |
| US7398024B2 | Image forming apparatus | Physics | 2 | Active |
| US9158227B1 | Developing roller and developing apparatus and image forming apparatus using the same | Physics | 2 | Active |
| US11964489B2 | Inkjet recording apparatus | Performing Operations; Transporting | 1 | Active |
| US11554587B2 | Inkjet recording apparatus | Performing Operations; Transporting | 1 | Active |
| US10858976B2 | Exhaust gas purification controller for engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US9201349B2 | Developing device, image forming apparatus | Physics | 0 | Active |
| US9298126B2 | Developing device and image forming apparatus including the same | Physics | 0 | Active |
| US12391047B2 | Inkjet recording apparatus | Performing Operations; Transporting | 0 | Active |
| US11161345B2 | Inkjet recording apparatus | Performing Operations; Transporting | 0 | Active |
| US11554588B2 | Inkjet recording apparatus | Performing Operations; Transporting | 0 | Active |
| US9122193B2 | Developing roller, developing device, and image forming apparatus including developing device | Physics | 0 | Active |
| US11396184B2 | Ink jet recording apparatus | Performing Operations; Transporting | 0 | Active |
| US10858978B2 | Exhaust gas purification controller for engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US9285713B2 | Developing device, and image forming apparatus provided with the same | Physics | 0 | Active |
| US10858977B2 | Exhaust gas purification controller for engine | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.