Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813445 | Optical crossconnect apparatus and optical transmission system | Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Shoichi Hanatani +1 more | 2004-11-02 |
| 6728489 | Optical transmission system constructing method and system | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 2004-04-27 |