Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9453091 | Method of producing water absorbent resin | Sumio Okuda, Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino | 2016-09-27 |
| 9243079 | Polyacrylic acid-based water-absorbing resin powder and method for producing the same | Shigeru Sakamoto, Yoshio Irie, Kunihiko Ishizaki | 2016-01-26 |