Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816431 | Process for preparing materials for reaction layer of gas permeable electrode | Nagakazu Furuya | 1989-03-28 |
| 4797380 | Method for producing highly dispersed catalyst | Masahiro Watanabe | 1989-01-10 |