Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686041 | Coloring master pellet for optical molded article and colored optical disk substrate | Akihiro Sakamoto, Hisayoshi Shimizu | 2004-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686041 | Coloring master pellet for optical molded article and colored optical disk substrate | Akihiro Sakamoto, Hisayoshi Shimizu | 2004-02-03 |