Haruo Koharagi
35Patents
12h-index
73Co-inventors
84Inventor score
Filing activity: Jun 10, 1982 → Oct 4, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4880474A | Method and apparatus for operating vacuum cleaner | Emerging Cross-Sectional Technologies | 114 | Expired |
| US5243732A | Vacuum cleaner with fuzzy logic control | Emerging Cross-Sectional Technologies | 97 | Expired |
| US6525442B2 | Permanent magnet rotating electric machine | Electricity | 65 | Expired |
| US6917133B2 | Air conditioner having permanent magnet rotating electric machine | Electricity | 49 | Expired |
| US4958406A | Method and apparatus for operating vacuum cleaner | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6441525B1 | Permanent magnet rotating electric machine | Electricity | 25 | Expired |
| US5166585A | Motor control apparatus for an electric vacuum cleaner | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4983895A | Method and apparatus for operating vacuum cleaner | Electricity | 18 | Expired |
| US5469009A | Turbine generator | Electricity | 17 | Expired |
| US8358040B2 | Permanent magnet type electric rotating machine | Electricity | 16 | Active |
| US5294872A | Method and apparatus for operating vacuum cleaner | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5381584A | Vacuum cleaner | Human Necessities | 13 | Expired |
| US4451752A | Stator of D.C. rotary machine | Electricity | 11 | Expired |
| US5015905A | DC dynamoelectric machine with interpoles having magnetic flux bypassing members | Electricity | 11 | Expired |
| US6657350B2 | Permanent magnet type rotating electrical machine, and power generation system and drive system using it | Electricity | 11 | Expired |
| US7531934B2 | Self-start synchronous motor with permanent magnets and at least one frictional agitation joint, method for manufacturing the same and compressor comprising the same | Electricity | 10 | Active |
| US6369478B1 | Permanent-magnet-type electric rotating machine and air compressor and generator using the same | Electricity | 10 | Expired |
| US5155885A | Vacuum cleaner and method for operating the same | Human Necessities | 9 | Expired |
| US6441523B1 | Very high permanent magnet type electric rotating machine system | Electricity | 9 | Expired |
| USRE34286E | Method and apparatus for operating vacuum cleaner | General | 9 | Expired |
| US6462451B1 | Permanent magnet rotating electric machine | Electricity | 9 | Expired |
| US6552461B2 | Permanent magnet type rotating electric machine | Electricity | 8 | Expired |
| US5075607A | Method and apparatus for operating vacuum cleaner | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6838798B2 | Permanent magnet type rotating electric machine | Electricity | 8 | Expired |
| US4467234A | Armature of rotating machine with means to balance the mutual inductance of adjacent pairs of coils | Electricity | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.