Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5734381 | Cancel undo method and system for tree structure data edition based on hierarchical menu inquiry | Masaharu Yoshizawa, Tetsuro Nishida, Hirohisa Yamamoto | 1998-03-31 |