Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7682687 | Forgery-preventing film | Katsukuni Nitta | 2010-03-23 |
| 5800909 | Sheet for illuminated signboard and illuminated signboard employing the same | Katsukuni Nitta | 1998-09-01 |