Yoichiro Ito
51Patents
13h-index
27Co-inventors
84Inventor score
Filing activity: Jul 22, 1975 → Sep 25, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4425112A | Flow-through centrifuge | Performing Operations; Transporting | 173 | Expired |
| US4419089A | Blood cell separator | Performing Operations; Transporting | 100 | Expired |
| US4051025A | Preparative countercurrent chromatography with a slowly rotating helical tube array | Physics | 70 | Expired |
| US4356958A | Blood cell separator | Performing Operations; Transporting | 51 | Expired |
| US4551251A | Monolithic integrated flow circuit | Physics | 36 | Expired |
| US4430216A | High speed preparative countercurrent chromatography with a multiple layer coiled column | Performing Operations; Transporting | 25 | Expired |
| US4414108A | Apparatus and method for continuous countercurrent extraction and particle separation | Performing Operations; Transporting | 24 | Expired |
| US4058460A | Horizontal flow-through coil planet centrifuge without rotating seals | Physics | 23 | Expired |
| US5169521A | Apparatus for countercurrent chromatography separations | Physics | 22 | Expired |
| US4857187A | Multistage mixer-settler centrifuge | Physics | 20 | Expired |
| US3994805A | Angle rotor countercurrent chromatography | Physics | 18 | Expired |
| US5449461A | Displacement countercurrent chromatography | Physics | 16 | Expired |
| US4487693A | Multi-layer coil countercurrent chromatograph with adjustable revolutional radius | Performing Operations; Transporting | 16 | Expired |
| US4615805A | Method for continuous countercurrent foam separation | Performing Operations; Transporting | 13 | Expired |
| US5332504A | pH-zone-refining countercurrent chromatography | Physics | 12 | Expired |
| US4324661A | Apparatus and method for continuous countercurrent extraction and particle separation | Physics | 10 | Expired |
| US4321138A | Method and apparatus for preparative countercurrent chromatography employing a rotating column assembly | Performing Operations; Transporting | 10 | Expired |
| US5114589A | Type-XLL cross-axis synchronous flow-through coil planet centrifuge for separation of biopolymers | Physics | 10 | Expired |
| US4228009A | Toroidal coil planet centrifuge | Physics | 10 | Expired |
| US5024758A | Horizontal flow-through coil planet centrifuge with multilayer plural coils in eccentric synchronous rotation, suitable for counter-current chromatography | Physics | 9 | Expired |
| US6503398B2 | Chiral separation of enantiomers by high-speed countercurrent chromatography | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6804876B1 | Method of producing chip inductor | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5354473A | Method for concentrating a solute by countercurrent chromatography | Physics | 8 | Expired |
| US5770083A | Separation of polar compounds by affinity countercurrent chromatography | Physics | 8 | Expired |
| US4151089A | Device for high efficiency continuous countercurrent extraction using a rotating helical tube | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.