Issued Patents All Time
Showing 1–25 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9593212 | Method for producing water absorbent resin particle | Shigeru Sakamoto, Hiroyuki Ikeuchi, Makoto Nagasawa, Kunihiko Ishizaki, Sayaka Machida | 2017-03-14 |
| 9243079 | Polyacrylic acid-based water-absorbing resin powder and method for producing the same | Shigeru Sakamoto, Kozo Nogi, Kunihiko Ishizaki | 2016-01-26 |
| 8875415 | Method for drying granular water-containing gel-like cross-linked polymer | — | 2014-11-04 |
| 8791210 | Polyacrylic water-absorbent resin powder and method for producing the same | Shigeru Sakamoto, Kozo Nogi, Kunihiko Ishizaki | 2014-07-29 |
| 8546492 | Surface treatment method for water-absorbing resin and production method for water-absorbing resin | Atsushi Motoyama, Seiji Kato, Makoto Matsumoto, Takaaki Kawano | 2013-10-01 |
| 8519212 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Yorimichi Dairoku, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi, Kunihiko Ishizaki | 2013-08-27 |
| 8497226 | Water absorbent and producing method of same | Kazushi Torii, Hirofumi Shibata, Taku Iwamura, Yorimichi Dairoku, Yoshiro Mitsukami +1 more | 2013-07-30 |
| 7851550 | Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin | Kenji Kadonaga, Yorimichi Dairoku, Shin-ichi Fujino, Hiroko Okochi, Hideyuki Tahara | 2010-12-14 |
| 7825169 | Water-absorbent composition, process for production thereof, absorbent and absorbing product | Katsuyuki Wada, Hiroko Ueda, Kunihiko Ishizaki, Yasuhisa Nakashima | 2010-11-02 |
| 7816445 | Production method for hydrophilic polymer | Yorimichi Dairoku, Yoshiro Mitsukami, Shin-ichi Fujino | 2010-10-19 |
| 7803880 | Water absorbent and producing method of same | Kazushi Torii, Hirofumi Shibata, Taku Iwamura, Yorimichi Dairoku, Yoshiro Mitsukami +1 more | 2010-09-28 |
| 7741400 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Yorimichi Dairoku, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi, Kunihiko Ishizaki | 2010-06-22 |
| 7694900 | Method for disintegrating hydrate polymer and method for production of water-absorbent resin | Yorimichi Dairoku, Yasuhiro Fujita, Kenji Tada, Hirofumi Shibata | 2010-04-13 |
| 7622535 | Method for continuous production of water-absorbent resin | Yorimichi Dairoku, Shinichi Fujino, Yasuhiro Fujita, Kenji Tada, Hiroki Inoue +2 more | 2009-11-24 |
| 7595428 | Water-absorbing agent composition and method for production thereof, absorptive article and absorbing material | Hiroko Ueda, Katsuyuki Wada | 2009-09-29 |
| 7582705 | Particulate water absorbent agent and production method thereof, and water absorbent article | Yorimichi Dairoku, Yoshifumi Adachi, Kozo Nogi, Hiroki Inoue, Katsuyuki Wada | 2009-09-01 |
| 7473739 | Particulate water absorbent agent and production method thereof, and water absorbent article | Yorimichi Dairoku, Yoshifumi Adachi, Kozo Nogi, Hiroki Inoue, Katsuyuki Wada | 2009-01-06 |
| 7288601 | Method for production of water-absorbent resin and plow-shaped mixing device | Kozo Nogi, Masazumi Sasabe, Kenji Kadonaga, Shigeru Sakamoto, Koji Miyake | 2007-10-30 |
| 7265190 | Process and apparatus for production of water-absorbent resin | Yorimichi Dairoku, Yasuhiro Fujita, Shinichi Fujino, Hirofumi Shibata, Kenji Tada | 2007-09-04 |
| 7201941 | Process for production of surface-treated particulate water-absorbent resin | Takaaki Kawano | 2007-04-10 |
| 7183456 | Water-absorbent resin and production process therefor | Takumi Hatsuda, Masatoshi Nakamura, Katsuyuki Wada, Shinichi Fujino, Kazuki Kimura +1 more | 2007-02-27 |
| 7091253 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Yorimichi Dairoku, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi, Kunihiko Ishizaki | 2006-08-15 |
| 7078458 | Method for production of hydrophilic resin | Katsuhiro Kajikawa, Kunihiko Ishizaki, Takumi Hatsuda | 2006-07-18 |
| 6998447 | Method for production of hydrophilic resin | Katsuhiro Kajikawa, Kunihiko Ishizaki, Takumi Hatsuda | 2006-02-14 |
| 6906159 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Yorimichi Dairoku, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi, Kunihiko Ishizaki | 2005-06-14 |