Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8436090 | Production method and method for enhancing liquid permeability of water-absorbing resin | Yorimichi Dairoku, Syuji Kanzaki, Kunihiko Ishizaki, Koji Matsumoto, Yoshiro Mitsukami | 2013-05-07 |
| 8410223 | Production method for water-absorbing resin | Koji Matsumoto, Kunihiko Ishizaki | 2013-04-02 |
| 8247491 | Water-absorbent resin composition and its production process | Kazushi Torii, Yoshiro Mitsukami, Motohiro Imura, Taku Iwamura, Toshimasa Kitayama +6 more | 2012-08-21 |
| 8148485 | Production method for water-absorbing resin | Kunihiko Ishizaki, Koji Matsumoto | 2012-04-03 |
| 7750085 | Water-absorbing agent and its production process | Kazushi Torii, Kenji Kadonaga, Hirofumi Shibata, Taku Iwamura, Kazuki Kimura +1 more | 2010-07-06 |
| 7638078 | Process for production of hydrogel particles and process for cutting of high-concentration hydrogel sheet | Masazumi Sasabe, Shigeru Sakamoto, Yasuhiro Fujita, Akihiro Morita, Hiroaki Hattori | 2009-12-29 |
| 7582705 | Particulate water absorbent agent and production method thereof, and water absorbent article | Yorimichi Dairoku, Yoshifumi Adachi, Hiroki Inoue, Katsuyuki Wada, Yoshio Irie | 2009-09-01 |
| 7473739 | Particulate water absorbent agent and production method thereof, and water absorbent article | Yorimichi Dairoku, Yoshifumi Adachi, Hiroki Inoue, Katsuyuki Wada, Yoshio Irie | 2009-01-06 |
| 7378453 | Surface crosslinking treatment method of water-absorbing resin powder | Shigeru Sakamoto, Noriaki Mizutani, Yorimichi Dairoku, Kunihiko Ishizaki | 2008-05-27 |
| 7347330 | Method for sizing of water-absorbent resin | Yorimichi Dairoku, Koji Miyake | 2008-03-25 |
| 7288601 | Method for production of water-absorbent resin and plow-shaped mixing device | Masazumi Sasabe, Kenji Kadonaga, Yoshio Irie, Shigeru Sakamoto, Koji Miyake | 2007-10-30 |
| 7282262 | Particulate water absorbent containing water absorbent resin as a main component | Yoshifumi Adachi, Takahiro Kitano, Hirotama Fujimaru | 2007-10-16 |
| 6797735 | Process for producing porous polymer | Kinya Nagasuna, Kenji Kadonaga, Hirotama Fujimaru, Kenji Minami | 2004-09-28 |
| 6765029 | Method for production of porous cross-linked polymer sheet | Masazumi Sasabe, Katsuhiko Sakamoto, Motohiro Arakawa | 2004-07-20 |
| 6750263 | Method for production of porous cross-linked polymer | Masazumi Sasabe, Katsuhiko Sakamoto | 2004-06-15 |
| 6730712 | Method of manufacturing porous cross-linked polymer sheet | Masazumi Sasabe, Katsuhiko Sakamoto, Motohiro Arakawa | 2004-05-04 |
| 6395792 | Method for production of porous cross-linked poymer | Kinya Nagasuna, Hirotama Fujimaru, Kenji Kadonaga, Katsuhiko Sakamoto, Masazumi Sasabe +1 more | 2002-05-28 |
| 6362243 | Method for production of porous cross-linked polymer | Masazumi Sasabe, Katsuhiko Sakamoto, Hiroshi Yamazaki, Koichi Yonemura, Kenji Kadonaga +3 more | 2002-03-26 |
| 5658508 | Method for continuously forming a synthetic stone | Nobuhiko Yukawa, Katsuhiko Sakamoto, Naofumi Tsujino | 1997-08-19 |