Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7650072 | Method of upgrading optical node, and an optical node apparatus | Miki Onaka, Yasushi Sugaya, Satoru Okano, Takehiro Fujita, Hiroaki Tomofuji +1 more | 2010-01-19 |
| 7522839 | Method of upgrading optical node, and an optical node apparatus | Miki Onaka, Yasushi Sugaya, Satoru Okano, Takehiro Fujita, Hiroaki Tomofuji +1 more | 2009-04-21 |