Hirobumi Ushijima
6Patents
1h-index
21Co-inventors
51Inventor score
Filing activity: Oct 17, 1994 → Nov 17, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5650132A | Process for producing hydrogen from hydrocarbon | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5557022A | Aromatization process | Chemistry; Metallurgy | 1 | Expired |
| US7951922B2 | Photoresponsive heterocyclic azo compound, method for producing the same, and optical information recording medium | Emerging Cross-Sectional Technologies | 1 | Active |
| US9697954B2 | Method for forming pattern | Emerging Cross-Sectional Technologies | 0 | Active |
| US10525664B2 | Air-permeable sheet | Electricity | 0 | Active |
| US12365634B2 | Highly dense brittle-material structural member having impregnating property | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.