Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819688 | Semiconductor laser device and optical fiber amplifier | Kiyohide Sakai, Takeshi Fujita, Yasuaki Yoshida, Kimio Shigihara, Tatsuo Hatta | 2004-11-16 |
YH
Yuuhiko Hamada
Overall (2004): #80,563 of 270,089Top 30%
1
Patents 2004