Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7869687 | Channel switching system and method of IPTV service in passive optical network | Hiroki Ikeda | 2011-01-11 |
| 7639905 | Channel switching system and method of IPTV service in passive optical network | Hiroki Ikeda | 2009-12-29 |