Issued Patents All Time
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 (All Time): #3,495,657 of 4,157,543Top 85%
1
Patents All Time