Ryuji Kumagai
18Patents
10h-index
40Co-inventors
68Inventor score
Filing activity: Jul 2, 2007 → May 15, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD573522S1 | Rear door of motor vehicle | General | 61 | Expired |
| USD688989S1 | Bumper for motor vehicle | General | 37 | Active |
| USD668593S1 | Bumper for motor vehicle | General | 30 | Active |
| USD713304S1 | Bumper for motor vehicle | General | 26 | Active |
| USD698290S1 | Bumper for motor vehicle | General | 24 | Active |
| USD842760S1 | Motor vehicle | General | 18 | Active |
| USD765546S1 | Motor vehicle | General | 17 | Active |
| USD573511S1 | Motor vehicle | General | 15 | Expired |
| USD819493S1 | Motor vehicle | General | 12 | Active |
| USD588506S1 | Bumper of motor vehicle | General | 10 | Expired |
| USD845835S1 | Motor vehicle | General | 7 | Active |
| USD756276S1 | Motor vehicle front bumper | General | 7 | Active |
| USD595192S1 | Bumper of motor vehicle | General | 4 | Expired |
| USD564109S1 | Headlight for a motor vehicle | General | 3 | Expired |
| USD701476S1 | Bumper for motor vehicle | General | 3 | Active |
| USD922285S1 | Motor vehicle | General | 1 | Active |
| USD883883S1 | Motor vehicle | General | 1 | Active |
| USD883881S1 | Motor vehicle | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.