Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700534 | Coloring fluid-containing marking device made of biodegradable plastic resin | Mikiya Ido, Tohru Watanabe | 1997-12-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700534 | Coloring fluid-containing marking device made of biodegradable plastic resin | Mikiya Ido, Tohru Watanabe | 1997-12-23 |