Issued Patents All Time
Showing 51–75 of 104 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8481664 | Particulate water absorbing agent including polyacrylic acid (polyacrylate) based water absorbing resin as a principal component, method for production thereof, water-absorbent core and absorbing article in which the particulate water absorbing agent is used | Yorimichi Dairoku, Hirotama Fujimaru | 2013-07-09 |
| 8436090 | Production method and method for enhancing liquid permeability of water-absorbing resin | Yorimichi Dairoku, Kozo Nogi, Syuji Kanzaki, Koji Matsumoto, Yoshiro Mitsukami | 2013-05-07 |
| 8424786 | Method for production of particulate water absorbent comprising water-absorbable resin as main ingredient | Koji Matsumoto, Yoshiro Mitsukami | 2013-04-23 |
| 8410223 | Production method for water-absorbing resin | Koji Matsumoto, Kozo Nogi | 2013-04-02 |
| 8309654 | Method of producing particle-shape water-absorbing resin material | Koji Miyake, Takahiro Kitano | 2012-11-13 |
| 8182916 | Particulate water absorbing agent comprising crosslinked absorbent resin and having low residual monomer, water absorbing article and method for production of water absorbing agent | Kazuki Kimura, Shin-ichi Fujino, Katsuyuki Wada | 2012-05-22 |
| 8148485 | Production method for water-absorbing resin | Kozo Nogi, Koji Matsumoto | 2012-04-03 |
| 8138292 | Method for producing particulate water—absorbing agent composed principally of water absorbing resin | Koji Matsumoto, Sumio Okuda | 2012-03-20 |
| 7825169 | Water-absorbent composition, process for production thereof, absorbent and absorbing product | Katsuyuki Wada, Hiroko Ueda, Yoshio Irie, Yasuhisa Nakashima | 2010-11-02 |
| 7741400 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Yorimichi Dairoku, Yoshio Irie, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi | 2010-06-22 |
| 7510988 | Particulate water-absorbing agent containing water-absorbent resin as a main component | Katsuyuki Wada, Hiroko Ueda, Kazuki Kimura | 2009-03-31 |
| 7473470 | Particulate water absorbing agent with irregularly pulverized shape | Takahiro Kitano, Yoshifumi Adachi, Hiroko Ueda, Katsuyuki Wada | 2009-01-06 |
| 7378453 | Surface crosslinking treatment method of water-absorbing resin powder | Kozo Nogi, Shigeru Sakamoto, Noriaki Mizutani, Yorimichi Dairoku | 2008-05-27 |
| 7250459 | Absorbent resin composition | Yorimichi Dairoku, Kinya Nagasuna, Yoshihiko Masuda, Nobuyuki Harada, Yoshihiro Motono | 2007-07-31 |
| 7238743 | Production process for water-absorbent resin | Yukihiro Matsumoto, Teruyuki Kanto | 2007-07-03 |
| 7196139 | Water-absorbent resin composition | Hirotama Fujimaru, Katsuyuki Wada, Motohiro Imura, Hiroki Inoue | 2007-03-27 |
| 7193006 | Process for continuous production of water-absorbent resin product | Katsuhiro Kajikawa | 2007-03-20 |
| 7183456 | Water-absorbent resin and production process therefor | Takumi Hatsuda, Yoshio Irie, Masatoshi Nakamura, Katsuyuki Wada, Shinichi Fujino +1 more | 2007-02-27 |
| 7153910 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Takumi Hatsuda, Kazuhisa Hitomi, Katsuhiro Kajikawa, Soichi Yamada | 2006-12-26 |
| 7091253 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Yorimichi Dairoku, Yoshio Irie, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi | 2006-08-15 |
| 7078458 | Method for production of hydrophilic resin | Yoshio Irie, Katsuhiro Kajikawa, Takumi Hatsuda | 2006-07-18 |
| 7049366 | Acrylic acid composition and its production process, and process for producing water-absorbent resin using this acrylic acid composition, and water-absorbent resin | Sei Nakahara, Hirotama Fujimaru, Yasuhisa Nakashima, Kazuhiko Sakamoto | 2006-05-23 |
| 7038081 | Method for producing polyacrylic acid | Yukihiro Matsumoto, Sei Nakahara | 2006-05-02 |
| 7009010 | Water-absorbent resin and production process therefor | Teruyuki Kanto | 2006-03-07 |
| 6998447 | Method for production of hydrophilic resin | Yoshio Irie, Katsuhiro Kajikawa, Takumi Hatsuda | 2006-02-14 |