Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12370503 | Composite membrane and method for producing composite membrane | Takashi Ohkame | 2025-07-29 |
| 5929280 | Process for the preparation of aqueous solutions of tetraalkylammonium hydroxides | Tooru Nonaka, Yasunori Hirata | 1999-07-27 |