Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10472429 | Package of water absorbent resin powder | Katsuhiro Kajikawa, Sumio Okuda, Kunihiko Ishizaki | 2019-11-12 |
| 10301398 | Production method of water absorbent resin powder and package of water absorbent resin powder | Katsuhiro Kajikawa, Sumio Okuda, Kunihiko Ishizaki | 2019-05-28 |
| 10099254 | Classification method of particulate water absorbent resin | Kenji Kadonaga, Yorimichi Dairoku, Shinichi Fujino | 2018-10-16 |
| 9550843 | Method for producing polyacrylic acid (salt)-based water absorbent resin | Satoshi Matsumoto, Makoto Matsumoto, Seiji Kato, Kenji Kadonaga, Shinichi Fujino | 2017-01-24 |
| 9051067 | Method for producing particulate water-absorbing agent composed principally of water-absorbing resin | Kozo Nogi, Sumio Okuda, Keiji Inoue, Toru Nishioka, Yusuke Watanabe | 2015-06-09 |
| 8859685 | Polyacrylic acid (salt)-type water absorbent resin and method for producing of same | Kozo Nogi, Kunihiko Ishizaki | 2014-10-14 |
| 8791230 | Method for producing particulate water absorbent resin | Satoshi Matsumoto, Syuji Kanzaki | 2014-07-29 |
| 5720736 | Absorbent material, absorbent article, and method for production thereof | Takumi Hatsuda | 1998-02-24 |
| 5518761 | Absorbent material absorbent article, and method for production thereof | Takumi Hatsuda | 1996-05-21 |