Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6448438 | Method for purifying acrylic acid | Masahiko Yamagishi, Kouji Kasamatsu, Yasuyuki Sakakura, Kiyoshi Takahashi | 2002-09-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6448438 | Method for purifying acrylic acid | Masahiko Yamagishi, Kouji Kasamatsu, Yasuyuki Sakakura, Kiyoshi Takahashi | 2002-09-10 |