Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5909688 | Information management system | Makoto Yoshioka, Hiroaki Negishi, Gengo Tazaki, Mitsuhiro Kokubun | 1999-06-01 |
| 5553216 | Structured database system together with structure definition frame storing document body data | Makoto Yoshioka, Hiroaki Negishi, Gengo Tazaki, Mitsuhiro Kokubun | 1996-09-03 |