Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7493636 | Method and apparatus for providing electronic coupons | Tadamasa Kitsukawa, Andrew Proehl, Keiichi Totsuka | 2009-02-17 |
| 6282713 | Method and apparatus for providing on-demand electronic advertising | Tadamasa Kitsukawa, Andrew Proehl, Keiichi Totsuka | 2001-08-28 |