Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6753997 | Magnetic field generator for optical devices utilizing magneto-optical effect | Seimi Sasaki, Nobuhiro Fukushima | 2004-06-22 |
| 6352432 | Karaoke apparatus | Tom Jen Tsai, Kanehisa Tsurumi | 2002-03-05 |