Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6148633 | Flowing-down ice making apparatus | Hatsuo Yamada, Tadashi Sakai, Sonoo Kato | 2000-11-21 |
| 6112533 | Flow-down ice maker | Sonoo Kato, Hatsuo Yamada, Tadashi Sakai | 2000-09-05 |
| 6105385 | Flow down type ice maker | Sonoo Kato, Hatsuo Yamada, Tadashi Sakai | 2000-08-22 |
| 6058732 | Ice making machine | Sonoo Kato, Hatsuo Yamada, Tadashi Sakai | 2000-05-09 |