Ryou Igarashi
18Patents
8h-index
7Co-inventors
57Inventor score
Filing activity: Apr 6, 2009 → Mar 14, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD733445S1 | Chair | General | 44 | Active |
| US8794701B2 | Backrest for chair | Human Necessities | 29 | Active |
| USD793141S1 | Chair | General | 22 | Active |
| USD733446S1 | Chair | General | 19 | Active |
| USD741099S1 | Chair | General | 15 | Active |
| USD622974S1 | Chair | General | 13 | Expired |
| USD622074S1 | Chair | General | 11 | Expired |
| USD611261S1 | Chair | General | 10 | Expired |
| USD656761S1 | Chair | General | 8 | Expired |
| USD622073S1 | Chair | General | 8 | Expired |
| USD605866S1 | Chair | General | 8 | Expired |
| USD605865S1 | Chair | General | 7 | Expired |
| USD616654S1 | Chair | General | 7 | Expired |
| US8991931B2 | Furniture cloth and chair | Emerging Cross-Sectional Technologies | 5 | Active |
| US8777321B2 | Stretching structure of chair upholstery material | Human Necessities | 5 | Active |
| USD616655S1 | Chair | General | 4 | Expired |
| USD611264S1 | Chair | General | 3 | Expired |
| USD615783S1 | Chair | General | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.