Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8031394 | Wavelength conversion system, optical integrated device and wavelength conversion method | Haruhiko Kuwatsuka | 2011-10-04 |
| 7998609 | Secondary cell replacing method | Masahiro Takada, Yoshiyuki Nakamura, Kazuo Tojima | 2011-08-16 |