Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6525879 | Optical filtering apparatus and method | Katsunori Kawano, Jiro Minabe, Takehiko Niitsu, Tsutomu Ishii, Yasunari Nishikata | 2003-02-25 |
| 6512733 | Optical recording method, optical recording apparatus, optical reading method, and optical reading apparatus | Katsunori Kawano, Tsutomu Ishii | 2003-01-28 |