Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10472429 | Package of water absorbent resin powder | Katsuhiro Kajikawa, Kazumasa Konishi, Kunihiko Ishizaki | 2019-11-12 |
| 10307506 | Process for producing water-absorbing resin | Syuji Kanzaki, Kunihiko Ishizaki, Satoshi Matsumoto | 2019-06-04 |
| 10301398 | Production method of water absorbent resin powder and package of water absorbent resin powder | Katsuhiro Kajikawa, Kazumasa Konishi, Kunihiko Ishizaki | 2019-05-28 |
| 10029027 | Production method for water-absorbing resin composition | Takahiro Kitano, Yorimichi Dairoku, Kozo Nogi, Motohiro Imura | 2018-07-24 |
| 9976001 | Process for producing water-absorbing resin powder | Kunihiko Ishizaki, Katsuyuki Wada | 2018-05-22 |
| 9624322 | Method of producing water absorbent resin | Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino, Kozo Nogi | 2017-04-18 |
| 9453091 | Method of producing water absorbent resin | Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino, Kozo Nogi | 2016-09-27 |
| 9272068 | Process for producing water-absorbing resin | Syuji Kanzaki, Kunihiko Ishizaki, Satoshi Matsumoto | 2016-03-01 |
| 9233186 | Process for producing water-absorbing resin | Syuji Kanzaki, Kunihiko Ishizaki, Satoshi Matsumoto | 2016-01-12 |
| 9051067 | Method for producing particulate water-absorbing agent composed principally of water-absorbing resin | Kozo Nogi, Keiji Inoue, Kazumasa Konishi, Toru Nishioka, Yusuke Watanabe | 2015-06-09 |
| 8703859 | Production method for water-absorbing resin composition | Takahiro Kitano, Yorimichi Dairoku, Kozo Nogi, Motohiro Imura | 2014-04-22 |
| 8513364 | Production method of water-absorbent resin | Masazumi Sasabe, Yorimichi Dairoku, Shuji Kanzaki, Yoshihiro Kita, Motohiro Imura | 2013-08-20 |
| 8138292 | Method for producing particulate water—absorbing agent composed principally of water absorbing resin | Koji Matsumoto, Kunihiko Ishizaki | 2012-03-20 |
| 6164455 | Process for classifying particulate hydrophilic polymer and sieving device | Hiroyuki Kakita, Tatsuo Maruo, Takumi Hatsuda | 2000-12-26 |