Ryoichi Ito
59Patents
18h-index
75Co-inventors
87Inventor score
Filing activity: Jun 20, 1974 → Sep 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4907546A | Air-cooled type cooling system for engine working machine assembly | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US7798357B2 | Bottle can member, bottle, and thread forming device | Emerging Cross-Sectional Technologies | 74 | Active |
| US6183926A | Toner and two-component developer for electrophotographic process and image formation method and image formation apparatus using the toner | Physics | 50 | Expired |
| US4779905A | Forcedly air-cooled engine generator of vertical shaft type | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US6258502A | Two-component developer, two-component developer holding container, and electrophotographic image formation apparatus equipped with the container | Physics | 48 | Expired |
| US4298974A | Optical head for a videodisc player/recorder | Physics | 38 | Expired |
| US7555927B2 | Bottle-shaped can manufacturing method and bottle-shaped can | Emerging Cross-Sectional Technologies | 30 | Expired |
| US8037734B2 | Bottle can member, bottle, and thread forming device | Emerging Cross-Sectional Technologies | 28 | Active |
| US8132439B2 | Bottle can member, bottle, and thread forming device | Emerging Cross-Sectional Technologies | 27 | Active |
| US5797778A | Mounting arrangement for marine propulsion engine | Performing Operations; Transporting | 27 | Expired |
| US8091402B2 | Method of manufacturing bottle can | Emerging Cross-Sectional Technologies | 27 | Active |
| US4270134A | Light-emitting semiconductor device | Electricity | 24 | Expired |
| US4206166A | Process of producing polyolefin foam moldings | Performing Operations; Transporting | 22 | Expired |
| US9660003B2 | Display device | Electricity | 22 | Active |
| US6368765B2 | Method of producing toner for developing latent electrostatic images | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6503681B2 | Process for the production of toner for developing electrostatic image | Physics | 20 | Expired |
| US4856470A | Engine working machine assembly with soundproof cover | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5072629A | Shift assisting system | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US8740001B2 | Bottle can member, bottle, and thread forming device | Emerging Cross-Sectional Technologies | 17 | Active |
| US4174491A | Mount for a light emitting device | Electricity | 16 | Expired |
| US10170727B2 | Display device | Electricity | 13 | Active |
| US4370517A | Polyolefin compositions for electrical insulation | Emerging Cross-Sectional Technologies | 13 | Expired |
| US3933772A | Dielectric polyolefin compositions | Chemistry; Metallurgy | 12 | Expired |
| US4142160A | Hetero-structure injection laser | Electricity | 11 | Expired |
| US4315226A | Semiconductor laser device | Electricity | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.