Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8965948 | Server apparatus and client apparatus in presence display system | Koichi Shimamura, Satoshi Nishizawa, Hideaki Suga, Jota Nakatsuma, Hisashi Kato +1 more | 2015-02-24 |
| 7969993 | Presence display system and gateway apparatus | Koichi Shimamura, Jota Nakatsuma, Seiichi Kawakami | 2011-06-28 |