Tamotsu Imai
86Patents
23h-index
27Co-inventors
88Inventor score
Filing activity: Oct 28, 1976 → Aug 2, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4788371A | Catalytic oxidative steam dehydrogenation process | Chemistry; Metallurgy | 84 | Expired |
| US4786625A | Dehydrogenation catalyst compositon | Emerging Cross-Sectional Technologies | 72 | Expired |
| US6171478A | Process for the desulfurization of a hydrocarbonaceous oil | Chemistry; Metallurgy | 63 | Expired |
| US4827072A | Dehydrogenation catalyst composition and hydrocarbon dehydrogenation process | Chemistry; Metallurgy | 59 | Expired |
| US4430517A | Dehydrogenation process using a catalytic composition | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4962261A | Process for upgrading methane to higher carbon number hydrocarbons | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4486547A | Indium-containing dehydrogenation catalyst | Chemistry; Metallurgy | 49 | Expired |
| US4716143A | Dehydrogenation catalyst composition | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4775462A | Non-oxidative method of sweetening a sour hydrocarbon fraction | Chemistry; Metallurgy | 47 | Expired |
| US4438288A | Dehydrogenation of hydrocarbons with a halogen contacting step | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4435607A | Dehydrogenation of dehydrogenatable hydrocarbons | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5338889A | Alkane rejection in C.sub.4 etherification and isomerization process | Chemistry; Metallurgy | 45 | Expired |
| US4795843A | Conversion of methane into larger organic hydrocarbons | Chemistry; Metallurgy | 42 | Expired |
| US4774377A | Alkylation/transalkylation process | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4857666A | Alkylation/transalkylation process | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5012027A | Dual profile surface-impregnated dehydrogenation catalyst and process | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4880764A | Dehydrogenation catalyst and process | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4595673A | Dehydrogenation catalyst compositions and method of their preparation | Chemistry; Metallurgy | 27 | Expired |
| US4070413A | Dehydrogenation of saturated hydrocarbons | Chemistry; Metallurgy | 27 | Expired |
| US4677237A | Dehydrogenation catalyst compositions | Chemistry; Metallurgy | 27 | Expired |
| US4418237A | Dehydrogenation of dehydrogenatable hydrocarbons | Chemistry; Metallurgy | 27 | Expired |
| US4652687A | Process for the dehydrogenation of dehydrogenatable hydrocarbons | Performing Operations; Transporting | 26 | Expired |
| US4886928A | Hydrocarbon dehydrogenation process | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6048449A | Process for reforming NAPHTHA feedstock using selective multimetallic-multigradient reforming catalyst | Chemistry; Metallurgy | 23 | Expired |
| US5095161A | Process and catalyst for upgrading methane to higher carbon number hydrocarbons | Emerging Cross-Sectional Technologies | 22 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.