Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4285811 | Purification of formaldehyde by separation | Tetsuya Miyake, Kunihiko Takeda, Naoki Miyata, Maomi Seko | 1981-08-25 |
| 4238294 | Process for recovering heavy metal ions or heavy metal ions and halogen values from solutions comprising a lower aliphatic monocarboxylic acid | Hiroshi Takeuchi, Tetsuya Miyake, Masatoshi Tanouchi, Kazuki Ban | 1980-12-09 |