Kozo Matake
14Patents
6h-index
13Co-inventors
63Inventor score
Filing activity: Feb 27, 1985 → Jun 9, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5846062A | Two stage screw type vacuum pump with motor in-between the stages | Mechanical Engineering; Lighting; Heating | 128 | Expired |
| US5923108A | Canned motor | Electricity | 42 | Expired |
| US5779453A | Vacuum pump motor arrangement having reduced heat generation | Electricity | 24 | Expired |
| US5209579A | Thrust bearing device | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5814913A | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Electricity | 11 | Expired |
| US6902380B2 | Vacuum pump with pump rotor pairs and permanent magnet motor | Electricity | 8 | Expired |
| US6183218A | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Electricity | 5 | Expired |
| US4636672A | Submersible motor | Electricity | 4 | Expired |
| US6761542B2 | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Electricity | 3 | Expired |
| US4886378A | Thrust bearing device | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6447271B2 | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Electricity | 3 | Expired |
| US7338266B2 | Screw pump and method of operating the same | Electricity | 2 | Expired |
| US8251678B2 | Vacuum pump unit | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11863025B2 | Resin molded rotor, canned motor, canned motor pump, fan scrubber, and vacuum pump apparatus | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.