Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642412 | Process for producing a high purity aromatic polycarboxylic acid | Ryusuke Shigematsu, Masayoshi Hayashi, Jitsuo Oishi, Akio Hashimoto | 2003-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642412 | Process for producing a high purity aromatic polycarboxylic acid | Ryusuke Shigematsu, Masayoshi Hayashi, Jitsuo Oishi, Akio Hashimoto | 2003-11-04 |