Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6721429 | Electro-magnetic microphone | Kaoru Tada | 2004-04-13 |
| 6713668 | Solar energy converter and solar energy conversion system | — | 2004-03-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6721429 | Electro-magnetic microphone | Kaoru Tada | 2004-04-13 |
| 6713668 | Solar energy converter and solar energy conversion system | — | 2004-03-30 |