Hajime Maruta
16Patents
6h-index
19Co-inventors
63Inventor score
Filing activity: Nov 22, 1995 → Aug 29, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6046845A | Screen assembly and reflex type screen assembly | Physics | 18 | Expired |
| US7262911B2 | Reflex-type screen assembly | Physics | 17 | Expired |
| US6233095A | Screen member for a reflex type screen | Physics | 16 | Expired |
| US6052227A | Screen assembly with pivoting leg members | Physics | 14 | Expired |
| US7110176B2 | Reflex-type screen | Physics | 11 | Expired |
| US5768019A | Reflective screen for a liquid crystal projector and method for producing the same | Physics | 10 | Expired |
| US7221508B2 | Reflex-type screen | Physics | 4 | Expired |
| US5863630A | Screen for a large size view field | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7911695B2 | Reflex-type screen, screen apparatus, and sheet-like article | Physics | 3 | Active |
| US9188847B2 | Screen and screen manufacturing method | Physics | 2 | Active |
| US10444614B2 | Reflective screen | Physics | 1 | Active |
| US10248016B2 | Reflection type screen | Physics | 1 | Active |
| US7633677B2 | Reflective screen | Physics | 1 | Active |
| US10849047B2 | Beacon | Electricity | 0 | Active |
| US11852710B2 | Face-to-face state determination system | Physics | 0 | Active |
| US10185215B2 | Reflection type screen | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.