Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6681019 | POLARITY DETERMINING CIRCUIT FOR LOUDSPEAKERS, AN AUDIO CIRCUIT HAVING A FUNCTION OF DETERMINING POLARITIES OF LOUDSPEAKERS, AND AN AUDIO CIRCUIT HAVING FUNCTIONS OF DETERMINING POLARITIES OF LOUDSPEAKERS AND SWITCHING THE POLARITIES | Mikio Kitano | 2004-01-20 |