Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7250459 | Absorbent resin composition | Yorimichi Dairoku, Kinya Nagasuna, Yoshihiko Masuda, Nobuyuki Harada, Kunihiko Ishizaki | 2007-07-31 |
| 6992144 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Kinya Nagasuna, Yoshihiko Masuda, Nobuyuki Harada, Kunihiko Ishizaki | 2006-01-31 |
| 6251960 | Process for production of water absorbent resin | Kunihiko Ishizaki, Hisanobu Obara, Nobuyuki Harada, Koji Miyake | 2001-06-26 |
| 6174978 | Production process of water-absorbent resin | Takumi Hatsuda, Takashi Namba | 2001-01-16 |
| 6150469 | Method of producing a hydrophilic resin | Nobuyuki Harada, Shigeru Sakamoto, Tadao Shimomura | 2000-11-21 |
| 6107358 | Water-absorbent resin and method for production thereof | Nobuyuki Harada, Koji Miyake, Hideyuki Tahara, Takumi Hatsuda, Teruyuki Kanto +4 more | 2000-08-22 |
| 6100305 | Method of production of water-absorbing resin | Koji Miyake, Nobuyuki Harada, Akito Yano, Teruyuki Kanto, Shigeru Sakamoto | 2000-08-08 |
| 6001911 | Absorbent resin, absorbent material and method of manufacturing the same | Kunihiko Ishizaki, Hisanobu Obara, Toshimasa Kitayama, Nobuyuki Harada | 1999-12-14 |
| 5985944 | Water-absorbent resin, process for production thereof, and water-absorbent resin composition | Kunihiko Ishizaki, Hisanobu Obara, Nobuyuki Harada, Koji Miyake | 1999-11-16 |
| 5853867 | Absorbent composite, method for production thereof, and absorbent article | Nobuyuki Harada, Shigeru Sakamoto, Toshimasa Kitayama | 1998-12-29 |
| 5610208 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Kinya Nagasuna, Yoshihiko Masuda, Nobuyuki Harada, Kunihiko Ishizaki | 1997-03-11 |
| 5098775 | Body fluid-absorbing article | Nobuyuki Harada, Kazumasa Kimura, Tadao Shimomura | 1992-03-24 |