Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7860931 | Permission-based electronic mail delivery system | Toshiyasu Yabe, Tomoko Enatsu | 2010-12-28 |
| 7640321 | Electronic mail delivery system, mail server, and mail client | Toshiyasu Yabe, Tomoko Enatsu | 2009-12-29 |
| 7543028 | Electronic mail distribution method, communications terminal, and server device | Toshiyasu Yabe, Tomoko Enatsu | 2009-06-02 |
| 7437416 | Electronic mail server apparatus | Tomoko Enatsu, Toshiyasu Yabe | 2008-10-14 |
| 7386311 | Communication system, mobile communication network, contents server, program and recording medium | Takashi Seki | 2008-06-10 |