Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12030997 | Method for producing water-absorbent resin particles | Ryota WAKABAYASHI, Mai SATO, Yoshihiro Shobo, Shin-ya Katsube, Kunihiko Ishizaki | 2024-07-09 |
| 11766659 | Method for producing water-absorbent resin powder, and drying device and drying method for particulate hydrous gel | Hiroyasu WATABE, Mai SATO, Ryota WAKABAYASHI, Yoshihiro Shobo, Shin-ya Katsube +4 more | 2023-09-26 |
| 11465126 | Method for producing water-absorbent resin powder and production apparatus therefor | Hiroyasu WATABE, Mai SATO, Ryota WAKABAYASHI, Yoshihiro Shobo, Shin-ya Katsube +10 more | 2022-10-11 |
| 10974223 | Method for producing water absorbent resin | Tokio Shuto, Motohiro Imura, Koji Honda, Ryota WAKABAYASHI | 2021-04-13 |
| 10640591 | Method for producing water-absorbent resin | Motohiro Imura, Ryota WAKABAYASHI, Kozo Nogi, Koji Honda, Yoshiki Katada +1 more | 2020-05-05 |
| 10294315 | Polyacrylic acid (salt)-based water absorbent resin and method for producing same | Satoshi Matsumoto, Kunihiko Ishizaki, Kazushi Torii, Kazuhiko Sakamoto | 2019-05-21 |
| 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, Katsuyuki Wada, Kunihiko Ishizaki | 2012-05-22 |
| 7851550 | Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin | Kenji Kadonaga, Yorimichi Dairoku, Hiroko Okochi, Yoshio Irie, Hideyuki Tahara | 2010-12-14 |
| 7816445 | Production method for hydrophilic polymer | Yorimichi Dairoku, Yoshiro Mitsukami, Yoshio Irie | 2010-10-19 |
| RE38444 | Absorbing agent, process of manufacturing same, and absorbent product containing same | Katsuyuki Wada, Kinya Nagasuna, Yoshihiko Masuda | 2004-02-24 |
| 6187872 | Water-absorbent agent and method for manufacturing the same | Toru Yanase, Kazuki Kimura, Kinya Nagasuna, Kunihiko Ishizaki, Hirotama Fujimaru +1 more | 2001-02-13 |
| 6180724 | Process for manufacturing an absorbing agent and absorbent material | Katsuyuki Wada, Kinya Nagasuna, Yoshihiko Masuda | 2001-01-30 |
| 6054541 | Process of manufacturing precursor of an absorbing agent | Katsuyuki Wada, Kinya Nagasuna, Yoshihiko Masuda | 2000-04-25 |
| 5760080 | Absorbing agent, process of manufacturing same, and absorbent product containing same | Katsuyuki Wada, Kinya Nagasuna, Yoshihiko Masuda | 1998-06-02 |
| 5475062 | Method for surface treatment of absorbent resin | Kunihiko Ishizaki, Kinya Nagasuna, Yoshiniko Masuda | 1995-12-12 |