Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11742736 | Step motor with spacing of same-phase stator pole groups based on one-half rotor tooth pitch | — | 2023-08-29 |
| 11621623 | 4-stator-pole step motor with passive inter-poles | — | 2023-04-04 |
| 11411444 | Variable reluctance step motor having enhanced holding torque | Jianjun Gan | 2022-08-09 |
| 10958146 | Low detent torque hybrid step motor | Guangming Peng | 2021-03-23 |
| 10855161 | Hybrid step motor with greater number of stator teeth than rotor teeth to deliver more torque | Harlan H. Nguyen, Nicholas A. Vergara | 2020-12-01 |
| 10090746 | 8-pole, 2-phase bipolar step motors with easy manufacture and optimum torque for size | Richard L. Badgerow | 2018-10-02 |
| 9966829 | Reduced-vibration stepper motor | Harlan H. Nguyen | 2018-05-08 |
| 9964201 | Lubrication reservoir for lead screw assembly | Abdallah Samaha | 2018-05-08 |
| 9806580 | Motor having stator assembly with integrated mounting and heat sink features | Richard L. Badgerow, Ryan Lin | 2017-10-31 |
| 9611914 | Adjusting device for a damp adjustment cylinder and a vehicular shock absorber including the same | — | 2017-04-04 |
| 9214849 | Hybrid step motor | — | 2015-12-15 |
| 8283841 | Motor end cap with interference fit | Ryan Lin | 2012-10-09 |
| 8278803 | Motor end cap positioning element for maintaining rotor-stator concentricity | Richard L. Badgerow | 2012-10-02 |
| 7622839 | Magnetic belt and roller system | — | 2009-11-24 |
| 7586221 | Low vibration hybrid step motor | — | 2009-09-08 |
| 7518270 | Accurate microstepping motor | Richard L. Badgerow | 2009-04-14 |
| 7459820 | Magnetic belt and roller system | — | 2008-12-02 |
| 6969930 | Half-stepping motor with bifilar winding ratio for smooth motion | Ryan Lin | 2005-11-29 |
| 6831552 | Vocal container cap | — | 2004-12-14 |
| 6597077 | Stator coil T-connection for two-phase step motors | Ryan Lin | 2003-07-22 |
| 6114782 | Two-phase hybrid step motor driven by three-phase driver | Ryan Lin | 2000-09-05 |
| 5977684 | Rotating machine configurable as true DC generator or motor | — | 1999-11-02 |
| 5412522 | Portable low profile information storage system | Wayne Lockhart | 1995-05-02 |
| 5272401 | Stepping motor design | — | 1993-12-21 |
| 4910475 | Pole grouping for stepping motor | — | 1990-03-20 |