Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6961503 | Planar lightwave circuit device and manufacturing method therefor | Yasuki Sakurai, Takashi Shiotani | 2005-11-01 |
| 6787867 | Planar lightwave circuit device and manufacturing method therefor | Yasuki Sakurai, Takashi Shiotani | 2004-09-07 |