Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12408026 | Message communication device and message communication program | Keiichi KAMIKAWA | 2025-09-02 |
| 12133147 | Message transfer apparatus and method, and computer-readable medium | Akihiro Ito, Keiichi KAMIKAWA | 2024-10-29 |
| 12021819 | Message communication method and storage medium for controlling transmission of messages based on an opt-in or opt-out status | Keiichi KAMIKAWA, Takashi Minami | 2024-06-25 |