Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4427637 | Apparatus for producing an alkali metal salt of a mineral acid, and a process | Fumiaki Mieno, Yoshinori Kiura, Kenichi Hayashi | 1984-01-24 |
| 4342737 | Process of producing a potassium sulfate salt | Kenichi Hayashi | 1982-08-03 |