Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6509490 | Method of purifying isophthalonitrile | Susumu Otsuka, Takuji Shitara, Kazuhiko Amakawa | 2003-01-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6509490 | Method of purifying isophthalonitrile | Susumu Otsuka, Takuji Shitara, Kazuhiko Amakawa | 2003-01-21 |