Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6765855 | Signal detection circuit for optical disk | Yasushi Adachi, Yutaka Onoguchi, Masaaki Katoh | 2004-07-20 |
| 6731847 | Optical fiber | Takatoshi Kato, Mitsuomi Hada, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2004-05-04 |