Akira Takara
20Patents
9h-index
14Co-inventors
72Inventor score
Filing activity: Mar 22, 1989 → Nov 4, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| 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 |
| 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 |
| US4969797A | Fan motor | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5247219A | Control apparatus of magnetic bearing | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4925321A | Dynamic pressure air bearing unit | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5564907A | Evacuating apparatus | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5205078A | Rotary apparatus | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5417551A | Housing arrangement for a synchronous plural motor fluid rotary apparatus | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5302089A | Fluid rotating apparatus | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5951266A | Evacuating apparatus having interengaging rotors with threads having a decreasing pitch at the exhaust side | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5374173A | Fluid rotating apparatus with sealing arrangement | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5376871A | Method of controlling position of rotary shaft in magnetic bearing | Physics | 6 | Expired |
| US5478210A | Multi-stage vacuum pump | Electricity | 5 | Expired |
| US5449276A | Two stage vacuum pump having different diameter interengaging rotors | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6913840B2 | Magnesium alloy molded product and method for manufacturing the same | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6669900B2 | Method of manufacturing magnesium alloy molded product, painted structure thereof, method of painting the same, and casings using the same | Chemistry; Metallurgy | 1 | Expired |
| US9671055B2 | Vacuum heat insulating material | Performing Operations; Transporting | 0 | Active |
| US9205331B2 | Mobile wireless handset and system including mobile wireless handset | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.