Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885136 | Method of anticorrosive treatment for soft water boilers | Sakae Katayama, Hirohiko Katayama, Toshihiko Mukai | 1989-12-05 |
| 4512552 | Corrosion inhibitor | Sakae Katayama, Tadahiko Asano, Kazuo Marugame, Sadaoki Kanada | 1985-04-23 |
| 4432884 | Scale inhibiting agent | Kenji Hanno | 1984-02-21 |