Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11931290 | Water absorbent resin powder for heat-generating element composition, and heat-generating element composition | Sachie KITABATA, Shigeru Sakamoto, Sumito Kumagai, Kunihiko Ishizaki | 2024-03-19 |
| 10696895 | Acrylic acid crosslinked polymer and use thereof | Shigeru Sakamoto, Tomoyuki ARAKE, Erina Minami, Shinichi Fujino | 2020-06-30 |
| 10640591 | Method for producing water-absorbent resin | Motohiro Imura, Shin-ichi Fujino, Ryota WAKABAYASHI, Koji Honda, Yoshiki Katada +1 more | 2020-05-05 |
| 10493429 | Method for producing polyacrylic acid (salt)-based water absorbent resin powder | Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto +2 more | 2019-12-03 |
| 10029027 | Production method for water-absorbing resin composition | Takahiro Kitano, Yorimichi Dairoku, Sumio Okuda, Motohiro Imura | 2018-07-24 |
| 9775927 | Particulate water absorbent and process for production thereof | Taishi Kobayashi, Motohiro Imura, Taku Iwamura, Katsuyuki Wada, Yoshiro Mitsukami +3 more | 2017-10-03 |
| 9624322 | Method of producing water absorbent resin | Sumio Okuda, Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino | 2017-04-18 |
| 9580519 | Method and apparatus for producing polyacrylic acid (salt)-based water absorbent resin | Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino, Satoshi Matsumoto | 2017-02-28 |
| 9567414 | Method for producing polyacrylic acid (salt)-based water absorbent resin powder | Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto +4 more | 2017-02-14 |
| 9453091 | Method of producing water absorbent resin | Sumio Okuda, Syuji Kanzaki, Kunihiko Ishizaki, Shinichi Fujino | 2016-09-27 |
| 9243079 | Polyacrylic acid-based water-absorbing resin powder and method for producing the same | Shigeru Sakamoto, Yoshio Irie, Kunihiko Ishizaki | 2016-01-26 |
| 9175142 | Transportation method for water-absorbing resin powder substance | Masatoshi Nakamura, Koji Matsumoto, Kazuma Awai | 2015-11-03 |
| 9138505 | Polyacrylic acid (salt)-type water absorbent resin and method for producing of same | Kunihiko Ishizaki, Katsuyuki Wada | 2015-09-22 |
| 9096732 | Conveyance method for water-absorbing resin powder substance | Masatoshi Nakamura, Koji Matsumoto, Kazuma Awai | 2015-08-04 |
| 9051067 | Method for producing particulate water-absorbing agent composed principally of water-absorbing resin | Sumio Okuda, Keiji Inoue, Kazumasa Konishi, Toru Nishioka, Yusuke Watanabe | 2015-06-09 |
| 9023951 | Polyacrylic acid (salt)-type water absorbent resin and method for producing of same | Kunihiko Ishizaki, Syuji Kanzaki | 2015-05-05 |
| 8952116 | Particulate water absorbent and process for production thereof | Taishi Kobayashi, Motohiro Imura, Taku Iwamura, Katsuyuki Wada, Yoshiro Mitsukami +3 more | 2015-02-10 |
| 8907021 | Polyacrylic acid (salt)-type water absorbent resin and method for producing of same | Takahiro Kitano, Kunihiko Ishizaki | 2014-12-09 |
| 8859685 | Polyacrylic acid (salt)-type water absorbent resin and method for producing of same | Kunihiko Ishizaki, Kazumasa Konishi | 2014-10-14 |
| 8809475 | Production method for water-absorbent resin | Koji Matsumoto, Shinichi Fujino, Yorimichi Dairoku, Kunihiko Ishizaki | 2014-08-19 |
| 8802800 | Production method for water-absorbent resin | Shinichi Fujino, Kunihiko Ishizaki | 2014-08-12 |
| 8791210 | Polyacrylic water-absorbent resin powder and method for producing the same | Shigeru Sakamoto, Yoshio Irie, Kunihiko Ishizaki | 2014-07-29 |
| 8765906 | Method for producing polyacrylic acid (salt) type water absorbent resin powder | Yusuke Watanabe, Kazushi Torii, Kunihiko Ishizaki, Reiko Nakatsuru, Shigeru Sakamoto | 2014-07-01 |
| 8703859 | Production method for water-absorbing resin composition | Takahiro Kitano, Yorimichi Dairoku, Sumio Okuda, Motohiro Imura | 2014-04-22 |
| 8596931 | Particulate water absorbing agent and method for producing the same | Teruhisa Nagashima, Masatoshi Nakamura, Yusuke Watanabe, Kunihiko Ishizaki | 2013-12-03 |