Shinji Takenaka
20Patents
6h-index
24Co-inventors
65Inventor score
Filing activity: May 18, 1975 → Nov 12, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4774070A | Production process of chlorine | Chemistry; Metallurgy | 24 | Expired |
| US4803065A | Production process of chlorine | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5000006A | Industrial process for the separation and recovery of chlorine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5302187A | Concentration process of gaseous chlorine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4956169A | Production process of chlorine | Performing Operations; Transporting | 8 | Expired |
| US5254323A | Industrial process for the separation and recovery of chlorine | Chemistry; Metallurgy | 6 | Expired |
| US4694110A | Process for production of m-phenoxybenzyl alcohol | Chemistry; Metallurgy | 6 | Expired |
| US5034209A | Production process of chlorine | Performing Operations; Transporting | 4 | Expired |
| US4126716A | Process for preparing stable anhydrous sodium dithionite | Chemistry; Metallurgy | 4 | Expired |
| US4042675A | Process for treating the mother liquor by pH adjusting in the production of anhydrous sodium dithionite | Chemistry; Metallurgy | 4 | Expired |
| US4042674A | Process for treating the mother liquor by cooling in the production of anhydrous sodium dithionite | Chemistry; Metallurgy | 4 | Expired |
| US4684449A | Process for producing m-hydroxybenzyl alcohol | Chemistry; Metallurgy | 3 | Expired |
| US5112593A | Production process of chlorine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4670607A | Method for producing 2-(substituted aryl) propionaldehyde | Chemistry; Metallurgy | 3 | Expired |
| US5093292A | Chromium oxide catalyst impregnation regeneration method | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5169823A | Method for stabilizing treatment of catalytic activity | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5112580A | Reactor for the production of chlorine | Performing Operations; Transporting | 1 | Expired |
| US4476335A | Process for preparing mononitrochlorobenzene | Chemistry; Metallurgy | 1 | Expired |
| US5068459A | Process for producing m-phenoxybenzyl alcohol | Chemistry; Metallurgy | 0 | Expired |
| US5108558A | Process for the electroreduction of aromatic carboxylic acids | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.