Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8555152 | Document management system and its method | Naohiro Furukawa, Hisashi Ikeda, Sunao Arai | 2013-10-08 |
| 7843590 | Information management method and information management system | Hisashi Ikeda, Naohiro Furukawa, Tsutomu Tashiro, Shoichi Nakagami | 2010-11-30 |