Teruo Maruyama
74Patents
18h-index
48Co-inventors
84Inventor score
Filing activity: Jan 18, 1979 → Jun 16, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5197861A | Fluid rotating apparatus | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US5553742A | Fluid feed apparatus and method | Mechanical Engineering; Lighting; Heating | 55 | Expired |
| US4797011A | Solid lubricant bearing | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5836746A | Vacuum pump having lubrication and cooling systems | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US5295798A | Fluid rotating apparatus with rotor communicating path | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US4580949A | Sliding vane type rotary compressor | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US5271719A | Fluid rotating apparatus and method of controlling the same | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5709537A | Evacuating apparatus | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5329216A | Multi-shaft driving apparatus and fluid rotary apparatus | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US4883367A | Bearing unit | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US6610435B1 | Fuel cell with reduced gas leakage | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4486158A | Rotary vane compressor with suction port adjustment | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6558127B2 | Fluid discharge device and fluid discharge method | Electricity | 24 | Expired |
| US4408966A | Pump for supplying liquid fuel | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5367997A | Throttle actuator | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6194800A | Magnetic bearing | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5348448A | Fluid rotating apparatus with plural drive motor synchronization system | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4407639A | Compressor | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4969797A | Fan motor | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5393201A | Synchronous rotating apparatus for rotating a plurality of shafts | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4332428A | Rotary mechanism with axial bearings | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US7131555B2 | Method and device for discharging fluid | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4392168A | Rotary head assembly | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6565333B2 | Fluid discharge apparatus and fluid discharge method | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5533887A | Fluid rotary apparatus having tapered rotors | Mechanical Engineering; Lighting; Heating | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.