Issued Patents All Time
Showing 376–400 of 555 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5631794 | Differential shunt-type protection circuit | — | 1997-05-20 |
| 5624347 | Electrical machine system capable of load driving and power generation functions and including at least two electrical mechines | — | 1997-04-29 |
| 5620173 | Double-acting distributed pressure vibration proof structure | — | 1997-04-15 |
| 5607369 | Differential motion gear system to control the speed ratio by means of the change of input direction | — | 1997-03-04 |
| 5606492 | Intermittent on/off regulator type DC power supply | — | 1997-02-25 |
| 5598311 | D.C. breaker arc extinguishing circuit | — | 1997-01-28 |
| 5576613 | DC motor-generator control circuit | — | 1996-11-19 |
| 5574341 | Compound motor limiting control circuit for controllable shunt field winding by means | — | 1996-11-12 |
| 5569992 | DC shunt (or compound) motor and its related circuit with controllable dynamic characteristics | — | 1996-10-29 |
| 5562566 | Distributed differential mixing combined power system | — | 1996-10-08 |
| 5557179 | Control circuit for plural partially interlocked commutator type motors with oscillation damping characteristics | — | 1996-09-17 |
| 5549524 | Multiple functioned combined power system | — | 1996-08-27 |
| 5547433 | Distributed differential coupling combined power system | — | 1996-08-20 |
| 5541483 | Control system and method for controlling a DC motor or generator | — | 1996-07-30 |
| 5531651 | Differential gear system using the change in input direction to control the output speed ratio | — | 1996-07-02 |
| 5521470 | Plural commutator type motors with common parallel driving circuit | — | 1996-05-28 |
| 5521471 | Series (or compound) motor and control circuit for adjusting effective exciting turn ratio of series field winding according to rotational speed or load current | — | 1996-05-28 |
| 5519276 | DC compound motor having an auxiliary generator which supplies power for shunt field winding excitation | — | 1996-05-21 |
| 5514916 | Power unit with controlled sparking | — | 1996-05-07 |
| 5507198 | Simple low-cost mechanical transmission for accommodating variable loads | — | 1996-04-16 |
| 5506456 | Power unit with controlled output voltage | — | 1996-04-09 |
| 5499551 | Double-acting type dynamic back clearance relief driving system | — | 1996-03-19 |
| 5493186 | Sub-exiter control for the series winding of a series-type or compound DC motor or generator | — | 1996-02-20 |
| 5489001 | Differential coupling and compound power system for a vehicle | — | 1996-02-06 |
| 5483433 | Voltage control circuit for a multiple stage DC power supply, and applications thereof | — | 1996-01-09 |