Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458948 | Process for producing carboxylic acid derivative and condensing agent comprising quaternary ammonium salt | Fumiaki Iwasaki, Shohei Tani, Munetaka Kunishima, Keiji Terao, Michiko Miharu +1 more | 2002-10-01 |