Ryuichiro Iwamoto
11Patents
7h-index
11Co-inventors
59Inventor score
Filing activity: Jan 22, 1990 → Jan 17, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6406615B1 | Hydrotreating process for residual oil | Chemistry; Metallurgy | 29 | Expired |
| US6328880A | Process for hydrotreating hydrocarbon oil | Chemistry; Metallurgy | 27 | Expired |
| US5565091A | Catalyst composition manufacturing method and sulfur-containing hydrocarbon hydrodesulfurization method using the same catalyst composition | Performing Operations; Transporting | 23 | Expired |
| US6398950B1 | Hydrogenation catalyst and method of hydrogenating heavy oil | Performing Operations; Transporting | 12 | Expired |
| US5207893A | Hydrocracking process employing a novel iron-containing aluminosilicate | Performing Operations; Transporting | 11 | Expired |
| US5280004A | Hydrodesulfurizing catalyst composition and method of preparing same | Performing Operations; Transporting | 10 | Expired |
| US5139984A | Faujasite-type aluminosilicates, a method of producing the same, and hydrocracking catalysts for heavy hydrocarbon oils | Chemistry; Metallurgy | 9 | Expired |
| US5336394A | Process for hydrodesulfurizing a sulfur-containing hydrocarbon | Performing Operations; Transporting | 6 | Expired |
| US5141737A | Iron-containing aluminosilicate | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5338437A | Method for hydrocracking a heavy hydrocarbon oil utilizing a faujasite aluminosilicate | Chemistry; Metallurgy | 3 | Expired |
| US7598203B2 | Hydrogenation catalyst for hydrocarbon oil, carrier for it, and method of hydrogenation of hydrocarbon oil | Chemistry; Metallurgy | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.