Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8426670 | Absorbent structure, absorbent article, water-absorbent resin, and its production process and evaluation method | Kenji Kadonaga, Akiko Mitsuhashi, Motohiro Imura | 2013-04-23 |
| 7420018 | Water-absorbing agent production process with surface crosslinking and ion blocking | Katsuyuki Wada, Hiroko Ueda, Naoko Takahashi, Koji Miyake, Yasuhiro Fujita +1 more | 2008-09-02 |
| 7250459 | Absorbent resin composition | Yorimichi Dairoku, Yoshihiko Masuda, Nobuyuki Harada, Yoshihiro Motono, Kunihiko Ishizaki | 2007-07-31 |
| 6992144 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Yoshihiko Masuda, Nobuyuki Harada, Yoshihiro Motono, Kunihiko Ishizaki | 2006-01-31 |
| 6964998 | Water-absorbing agent and its production process and use | Katsuyuki Wada, Hiroko Ueda, Naoko Takahashi, Koji Miyake, Yasuhiro Fujita +1 more | 2005-11-15 |
| 6822010 | Method for production of porous material | Hirotama Fujimaru, Hiroki Inoue, Kenji Kadonaga | 2004-11-23 |
| 6797735 | Process for producing porous polymer | Kenji Kadonaga, Hirotama Fujimaru, Kozo Nogi, Kenji Minami | 2004-09-28 |
| RE38444 | Absorbing agent, process of manufacturing same, and absorbent product containing same | Katsuyuki Wada, Shin-ichi Fujino, Yoshihiko Masuda | 2004-02-24 |
| 6630519 | Process for producing porous polymer | Hirotama Fujimaru, Kenji Kadonaga, Kenji Minami | 2003-10-07 |
| 6599989 | Water-absorbent agents containing polycarboxylic amine chelating agents | Katsuyuki Wada, Hiroko Ueda, Naoko Takahashi, Koji Miyake, Yasuhiro Fujita +1 more | 2003-07-29 |
| 6476155 | Method of producing a hydrophilic resin | Katsuyuki Wada, Masatoshi Nakamura, Yoshihiko Masuda | 2002-11-05 |
| 6395792 | Method for production of porous cross-linked poymer | Hirotama Fujimaru, Kenji Kadonaga, Kozo Nogi, Katsuhiko Sakamoto, Masazumi Sasabe +1 more | 2002-05-28 |
| 6335406 | Method for production of absorbent resin excelling in durability | Kenji Kadonaga, Kazumasa Kimura, Tadao Shimomura | 2002-01-01 |
| 6297319 | Water-absorbing agent and production process therefor | Shinichi Fujino, Masatoshi Nakamura, Kunihiko Ishizaki | 2001-10-02 |
| 6274638 | Method for production of porous cross-linked polymer material | Koichi Yonemura, Hiroshi Yamazaki, Masazumi Sasabe, Hirotama Fujimaru | 2001-08-14 |
| 6265488 | Production process for water-absorbing agent | Shinichi Fujino, Masatoshi Nakamura | 2001-07-24 |
| 6187872 | Water-absorbent agent and method for manufacturing the same | Toru Yanase, Kazuki Kimura, Shin-ichi Fujino, Kunihiko Ishizaki, Hirotama Fujimaru +1 more | 2001-02-13 |
| 6180724 | Process for manufacturing an absorbing agent and absorbent material | Katsuyuki Wada, Shin-ichi Fujino, Yoshihiko Masuda | 2001-01-30 |
| 6150582 | Absorbent article and production process therefor | Katsuyuki Wada, Naoko Takahashi, Hiroko Ueda | 2000-11-21 |
| 6127454 | Water-absorbing agent and production process therefor | Katsuyuki Wada | 2000-10-03 |
| 6110992 | Water-absorbing agent and production process therefor | Katsuyuki Wada | 2000-08-29 |
| 6103785 | Water-absorbing agent and its production process and use | Katsuhiro Kajikawa | 2000-08-15 |
| 6087002 | Water absorbent resin | Kazumasa Kimura, Takashi Namba, Kenji Kadonaga, Koji Miyake, Tadao Shimomura | 2000-07-11 |
| 6071976 | Water absorbing agent, manufacturing method thereof, and manufacturing machine thereof | Yorimichi Dairoku, Toshimasa Kitayama, Takanori Murakami, Akito Yano, Kunihiko Ishizaki | 2000-06-06 |
| 6054541 | Process of manufacturing precursor of an absorbing agent | Katsuyuki Wada, Shin-ichi Fujino, Yoshihiko Masuda | 2000-04-25 |