Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7508822 | Communication system and communication method | Keiko Tanigawa, Kazuma Yumoto, Kenta Shiga | 2009-03-24 |
| 7233589 | Communication system and communication method | Keiko Tanigawa, Kazuma Yumoto, Kenta Shiga | 2007-06-19 |
| 6618368 | Data gateway and method for relaying data | Keiko Tanigawa, Koji Tsukada, Hiroshi Kanai, Toshimitsu Hayashi | 2003-09-09 |