Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8719691 | Document providing system and computer-readable storage medium | Shigehisa Kawabe, Setsu Kunitake, Akira Suzuki | 2014-05-06 |
| 8086570 | Secure document management using distributed hashing | Shigehisa Kawabe, Setsu Kunitake, Yoshihiro Ueda, Kenichi Numata, Akira Suzuki +2 more | 2011-12-27 |
| 7159171 | Structured document management system, structured document management method, search device and search method | Kenichi Numata, Shigehisa Kawabe, Toshifumi Yamada, Minoru Ikeda, Kazuhiko Higashi +1 more | 2007-01-02 |
| 7069502 | Structured document management system and structured document management method | Kenichi Numata, Shigehisa Kawabe, Toshifumi Yamada, Minoru Ikeda, Kazuhiko Higashi +1 more | 2006-06-27 |