Yoshio Ito
99Patents
20h-index
151Co-inventors
91Inventor score
Filing activity: Jan 3, 1974 → Jun 8, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4988337A | Syringe pump apparatus | Emerging Cross-Sectional Technologies | 208 | Expired |
| US5365153A | AC variable speed driving apparatus and electric vehicle using the same | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5424419A | Oxidized complex comprising water-soluble carboxypolysaccharide and magnetic iron oxide | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5766572A | Water-soluble carboxypolysaccharide-magnetic iron oxide complex having a small particle diameter | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5895435A | Vehicle drive mode estimating device, and vehicle control apparatus, transmission shift control apparatus and vehicle drive force control apparatus including drive mode estimating device | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4823195A | Recording apparatus | Electricity | 32 | Expired |
| US3945726A | Electrophotographic fixing device | Physics | 32 | Expired |
| US4168901A | Developer housing sealing device for electrophotography | Physics | 31 | Expired |
| US4218131A | Cleaning device | Physics | 30 | Expired |
| US5350994A | Electric system for an electric vehicle | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4654884A | Radio receiver with switching circuit for elimination of intermodulation interference | Electricity | 29 | Expired |
| US5328681A | Composition comprising magnetic metal oxide ultrafine particles and derivatized polysaccharides | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5941793A | Apparatus for controlling automatic transmission of motor vehicle | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US5392459A | Power control in microwave transmission system increasing power of both horizontally and vertically polarized waves | Electricity | 27 | Expired |
| US4953037A | Original reading apparatus | Electricity | 26 | Expired |
| US4000942A | Transfer medium separating device | Physics | 25 | Expired |
| US4438918A | Original aligning device | Performing Operations; Transporting | 25 | Expired |
| US5125047A | Original-reading device with a movable reading unit | Electricity | 22 | Expired |
| US6708796B2 | Electric power steering apparatus | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6550567B2 | Electric power steering apparatus | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4323306A | Developer cleaning device for electrophotography | Physics | 18 | Expired |
| US6518547B2 | Heat treatment apparatus | Electricity | 15 | Expired |
| US4442459A | Facsimile transceiver | Electricity | 15 | Expired |
| US4639749A | Printing apparatus | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6769507B2 | Electric power steering apparatus | Mechanical Engineering; Lighting; Heating | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.