Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7312278 | Water-absorbing agent and production process therefor, and sanitary material | Yasuhisa Nakashima, Hiroyuki Ikeuchi, Yasuhiro Fujita, Makoto Nagasawa, Shigeru Sakamoto +4 more | 2007-12-25 |
| 7153910 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Kunihiko Ishizaki, Takumi Hatsuda, Katsuhiro Kajikawa, Soichi Yamada | 2006-12-26 |
| 6881792 | Production processes for basic water-absorbent resin and water-absorbing agent, and use thereof | Nobuyuki Harada, Shigeru Sakamoto, Yoshifumi Adachi, Kazushi Torii, Toshimasa Kitayama | 2005-04-19 |
| 6458921 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Kunihiko Ishizaki, Takumi Hatsuda, Katsuhiro Kajikawa, Soichi Yamada | 2002-10-01 |
| 6372852 | Water-absorbing composition and production process for water-absorbing agent | Yuji Yamamoto, Shigenori Kirimura, Nobuyuki Harada | 2002-04-16 |
| 6254990 | Surface-crosslinking process for water-absorbent resin | Kunihiko Ishizaki, Teruyuki Kanto, Shigeru Sakamoto, Nobuyuki Harada | 2001-07-03 |
| 6228930 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Kunihiko Ishizaki, Takumi Hatsuda, Katsuhiro Kajikawa, Soichi Yamada | 2001-05-08 |
| 5792855 | Water-absorbent resins and manufacturing methods thereof | Koichi Yonemura, Akiko Mitsuhashi, Takaya Hayashi, Nobuyuki Harada | 1998-08-11 |
| 5624967 | Water-absorbing resin and process for producing same | Takumi Hatsuda, Tadao Shimomura | 1997-04-29 |