Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5841259 | Vacuum cleaner and control method thereof | Ji-Hyun Kim, Jae Bong Lee | 1998-11-24 |
| 5804800 | Turn table driving apparatus of microwave oven | Eung-Sup Lee | 1998-09-08 |
| 5682640 | Power supply apparatus for automatic vacuum cleaner | — | 1997-11-04 |
| 5672291 | Apparatus for rotating a turntable of a microwave oven and vertically adjusting the turntable by a single motor | — | 1997-09-30 |
| 5646494 | Charge induction apparatus of robot cleaner and method thereof | — | 1997-07-08 |
| 5498940 | Methods and apparatus for maintaining a constant tension on an electrical cord of a robot | Ji-Hyun Kim, Jae Bong Lee | 1996-03-12 |