Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8283285 | Scratch color-developable ink and invisible information printed sheet | Hisashi Wakasugi, Fujio Takasaki, Masahiro Miyauchi, Haruhiko Ikeda | 2012-10-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8283285 | Scratch color-developable ink and invisible information printed sheet | Hisashi Wakasugi, Fujio Takasaki, Masahiro Miyauchi, Haruhiko Ikeda | 2012-10-09 |