Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12187860 | Water-absorbent resin powder and production method thereof | Tsuyoshi YORINO, Naoki KATAKURA, Hiroki Hayashi, Sumito Kumagai, Masahumi INOUE +6 more | 2025-01-07 |
| 11958921 | Poly (meth) acrylic acid (salt)-based particulate water-absorbing agent and production method therefor | Tsuyoshi YORINO, Daisuke Takeda, Yoshitaka Ikeuchi, Shigeru Sakamoto, Yoshihiro Shobo +3 more | 2024-04-16 |
| 11535689 | Poly (meth) acrylic acid (salt)-based particulate water-absorbing agent and production method therefor | Tsuyoshi YORINO, Daisuke Takeda, Yoshitaka Ikeuchi, Shigeru Sakamoto, Yoshihiro Shobo +3 more | 2022-12-27 |
| 11465126 | Method for producing water-absorbent resin powder and production apparatus therefor | Hiroyasu WATABE, Mai SATO, Ryota WAKABAYASHI, Yoshihiro Shobo, Shin-ya Katsube +10 more | 2022-10-11 |
| 10640593 | Polyacrylic acid (salt), polyacrylic acid (salt)-based water-absorbing resin, and process for producing same | Satoshi Matsumoto, Yuki KABEYA, Kunihiko Ishizaki | 2020-05-05 |
| 10207250 | Poly(meth)acrylic acid (salt)-based particulate absorbent | Yoshitaka Ikeuchi | 2019-02-19 |
| 8845924 | Water absorbing agent and production method thereof | Kazushi Torii, Yusuke Watanabe, Taishi Kobayashi, Toshimasa Kitayama, Seiichi Suzuki +1 more | 2014-09-30 |
| 8765857 | Particulate water retaining material for cultivating plant having water absorbent resin as main component | Hirotama Fujimaru, Yorimichi Dairoku, Kunihiko Ishizaki, Nobuyuki Harada | 2014-07-01 |
| 8647528 | Water absorbing agent and production method thereof | Kazushi Torii, Sayaka Machida, Hiroyuki Ikeuchi | 2014-02-11 |
| 8501873 | Water absorbent material, method for production of surface cross-linked water absorbent resin, and method for evaluation of water absorbent material | Masazumi Sasabe, Kenji Kadonaga, Shigeru Sakamoto, Motohiro Imura, Tsunemasa Ueno +1 more | 2013-08-06 |
| 8257610 | Water absorbing agent and production method thereof | Kazushi Torii, Taishi Kobayashi, Yusuke Watanabe, Toshimasa Kitayama | 2012-09-04 |
| 8252715 | Water-absorbing agent and production method thereof | Kazushi Torii, Taishi Kobayashi, Yusuke Watanabe, Hiroyuki Ikeuchi, Toshimasa Kitayama | 2012-08-28 |
| 7960469 | Water absorbent resin composition and production method thereof | Takahiro Kitano, Shinichi Fujino, Katsuyuki Wada, Kazushi Torii, Taku Iwamura +1 more | 2011-06-14 |
| 7838610 | Ion-sensitive super-absorbent polymer | — | 2010-11-23 |
| 7582705 | Particulate water absorbent agent and production method thereof, and water absorbent article | Yorimichi Dairoku, Kozo Nogi, Hiroki Inoue, Katsuyuki Wada, Yoshio Irie | 2009-09-01 |
| 7473739 | Particulate water absorbent agent and production method thereof, and water absorbent article | Yorimichi Dairoku, Kozo Nogi, Hiroki Inoue, Katsuyuki Wada, Yoshio Irie | 2009-01-06 |
| 7473470 | Particulate water absorbing agent with irregularly pulverized shape | Kunihiko Ishizaki, Takahiro Kitano, Hiroko Ueda, Katsuyuki Wada | 2009-01-06 |
| 7435477 | Particulate water absorbent containing water absorbent resin as a main component | Takahiro Kitano, Hirotama Fujimaru, Hiroyuki Ikeuchi, Katsuyuki Wada | 2008-10-14 |
| 7285615 | Particulate water-absorbent resin composition | Toshimasa Kitayama, Yorimichi Dairoku | 2007-10-23 |
| 7282262 | Particulate water absorbent containing water absorbent resin as a main component | Takahiro Kitano, Hirotama Fujimaru, Kozo Nogi | 2007-10-16 |
| 6881792 | Production processes for basic water-absorbent resin and water-absorbing agent, and use thereof | Nobuyuki Harada, Shigeru Sakamoto, Kazuhisa Hitomi, Kazushi Torii, Toshimasa Kitayama | 2005-04-19 |
| 6410616 | Crosslinked polymer particle and its production process and use | Nobuyuki Harada, Masatoshi Nakamura, Shigenori Kirimura | 2002-06-25 |
| 6342652 | Water-swellable crosslinked polymer, its composition, and their production processes and uses | Nobuyuki Harada, Toshimasa Kitayama | 2002-01-29 |
| 6333109 | Water-swellable crosslinked polymer composition and production | Nobuyuki Harada, Shigeru Sakamoto, Toshimasa Kitayama | 2001-12-25 |
| 6291636 | Manufacturing method of absorbent resin | Koji Miyake, Toru Yanase, Takumi Hatsuda | 2001-09-18 |