Helmut Hans
24Patents
7h-index
9Co-inventors
62Inventor score
Filing activity: Sep 19, 1986 → Dec 14, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6987342B2 | Rotor for an electric motor | Electricity | 62 | Expired |
| US7196446B2 | Rotor for an electric motor | Electricity | 52 | Expired |
| US4920292A | Motor having rotor capable of both stepped rotary and axial shift motions | Electricity | 17 | Expired |
| US5394283A | Disk storage drive having a rotor mounted with a plurality of bearing | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5220258A | Drive circuit for a brushless direct-current motor | Electricity | 12 | Expired |
| US5945751A | Disk storage device having a spindle driving motor | Electricity | 12 | Expired |
| US5594606A | Disk storage drive for maintaining precision during thermal variations | Physics | 9 | Expired |
| US6992418B2 | Stator component for an inner rotor DC motor | Electricity | 7 | Expired |
| US5598073A | Drive circuit for a brushless direct-current motor | Electricity | 6 | Expired |
| US7067953B1 | Stator arrangement for an electric machine | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5117128A | Motor with both stepped rotary and axial shift motions | Electricity | 6 | Expired |
| US4752236A | Security latch for electrical connectors | Electricity | 5 | Expired |
| US7002275B2 | Electric motor, particularly an electronically commutated direct current motor | Electricity | 4 | Expired |
| US6504279B1 | Motor mount for small high speed motors | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7081694B2 | Lead frame for connecting electronic components of an electric motor | Electricity | 4 | Expired |
| US5343129A | Drive circuit for a brushless direct-current motor | Electricity | 4 | Expired |
| US5589745A | Drive circuit for a brushless direct-current motor | Electricity | 3 | Expired |
| US5317241A | Rotary drive for a data carrier | Physics | 3 | Expired |
| US6925412B2 | Method for adjusting a sensor device for determining the rotational position of an electronically-commutated motor rotor | Electricity | 3 | Expired |
| USRE37825E1 | Data storage device having a drive mechanism for rotating a data storage medium | General | 2 | Expired |
| US5796548A | Disk storage device having spindle assembly with ring enclosure | Physics | 2 | Expired |
| USRE38264E1 | Rotary drive for a data carrier | General | 2 | Expired |
| US7132773B2 | Brushless direct current motor | Electricity | 2 | Expired |
| US7183688B2 | Stator for an electric motor | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.