Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10472429 | Package of water absorbent resin powder | Sumio Okuda, Kazumasa Konishi, Kunihiko Ishizaki | 2019-11-12 |
| 10301398 | Production method of water absorbent resin powder and package of water absorbent resin powder | Sumio Okuda, Kazumasa Konishi, Kunihiko Ishizaki | 2019-05-28 |