Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6241928 | Method for production of shaped hydrogel of absorbent resin | Takumi Hatsuda, Katsuhiro Kajikawa, Hideyuki Tahara, Koji Miyake, Takanori Murakami | 2001-06-05 |
| 6187902 | Production process of hydrophilic crosslinked polymer | Toru Yanase, Koji Miyake, Takumi Hatsuda | 2001-02-13 |
| 6140395 | Method of producing hydrophilic resin | Takumi Hatsuda, Koji Miyake | 2000-10-31 |
| 6107358 | Water-absorbent resin and method for production thereof | Nobuyuki Harada, Koji Miyake, Yoshihiro Motono, Hideyuki Tahara, Takumi Hatsuda +4 more | 2000-08-22 |
| 6100305 | Method of production of water-absorbing resin | Koji Miyake, Yoshihiro Motono, Nobuyuki Harada, Teruyuki Kanto, Shigeru Sakamoto | 2000-08-08 |
| 6071976 | Water absorbing agent, manufacturing method thereof, and manufacturing machine thereof | Yorimichi Dairoku, Toshimasa Kitayama, Kinya Nagasuna, Takanori Murakami, Kunihiko Ishizaki | 2000-06-06 |
| 5140076 | Method of treating the surface of an absorbent resin | Takumi Hatsuda, Kazumasa Kimura, Kinya Nagasuna | 1992-08-18 |
| 5124416 | Method for production of absorbent polymer | Yoshinobu Haruna, Yoshio Irie, Teruaki Fujihara | 1992-06-23 |