Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5488114 | Labelling color, method of preparing the same and method for detecting methamphetamine with the color | Nobuyuki Shigetoh, Hiroshi Nakayama, Keiko Yugawa, Tadayasu Mitsumata | 1996-01-30 |