Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646119 | Acetylated pyroxylin | Tokuji Tanaka | 2003-11-11 |
| 6417344 | Acetylated pyroxylin, and its production process | Tokuji Tanaka | 2002-07-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646119 | Acetylated pyroxylin | Tokuji Tanaka | 2003-11-11 |
| 6417344 | Acetylated pyroxylin, and its production process | Tokuji Tanaka | 2002-07-09 |