Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7353190 | Gift-valuable article exchange assisting device and method, and computer product | Kuniaki Yamada, Shigehiko Takayama | 2008-04-01 |
| 5909668 | Banquet hall reservation management system | — | 1999-06-01 |