| 1999-2000 | 3D Spreadsheet | Spreadsheet Visualization based on the Natto View Technique |
| 1998-2000 | 3D Desktop | Perspective Window System for Collaborative Work |
| 1997-1999 | WASABI | Haptic Window System on Real Desktop |
| 1995-1997 | Natto View | 3D Interactive WWW Space Visualizer |