Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8219806 | Management system, management apparatus and management method | Koji Okuyama, Hideyuki Inaoka, Eiichi Watanabe | 2012-07-10 |
| 5175417 | Window information apparatus | Hideo Tsuboi | 1992-12-29 |