Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6875511 | Production process for particulate water-absorbent resin | Yorimichi Dairoku, Kenji Tada, Shinichi Fujino, Makoto Nagasawa | 2005-04-05 |
| 6867269 | Water-absorbent resin and production process therefor | Shigeru Sakamoto, Yorimichi Dairoku, Yasuhiro Fujita | 2005-03-15 |
| 6817557 | Process for transporting, storing, and producing a particulate water-absorbent resin | Hiroyuki Kakita, Tatsuo Maruo, Takumi Hatsuda | 2004-11-16 |
| 6720389 | Water-absorbent resin and production process therefor | Takumi Hatsuda, Masatoshi Nakamura, Katsuyuki Wada, Shinichi Fujino, Kazuki Kimura +1 more | 2004-04-13 |
| 6562879 | Water-absorbent resin powder and its production process and use | Takumi Hatsuda, Hiroyuki Ikeuchi, Koji Miyake, Kunihiko Ishizaki | 2003-05-13 |
| 6388000 | Method for production of hydrophilic resin | Katsuhiro Kajikawa, Kunihiko Ishizaki, Takumi Hatsuda | 2002-05-14 |
| 6207796 | Production process for hydrophilic polymer | Yorimichi Dairoku, Koji Miyake, Yasuhiro Fujita | 2001-03-27 |
| 6083417 | Thermal storage agent, manufacturing method thereof, thermal storage material, manufacturing method thereof, thermal storage device and accumulating method | Tomoki Gomi, Tadao Shimomura | 2000-07-04 |
| 5993666 | Maleic acid based copolymer, and its production process and use | Shigeru Yamaguchi, Keishi Tsuboi | 1999-11-30 |
| 5733857 | Maleic acid based copolymer and its production process and use | Shigeru Yamaguchi, Keishi Tsuboi | 1998-03-31 |
| 5574121 | Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate | Nobuyuki Harada, Kinya Nagasuna, Kohichi Hirota, Yoshihiko Masuda, Hideaki Nagano +1 more | 1996-11-12 |
| 5532323 | Method for production of absorbent resin | Kazutaka Yano, Katsuhiro Kajikawa, Kinya Nagasuna | 1996-07-02 |
| 5478879 | Method for production of absorbent resin | Katsuhiro Kajikawa, Yoshihiko Masuda, Kinya Nagasuna | 1995-12-26 |
| 5403821 | Drilling fluid additives | Shorbu Shioji, Teruaki Fujiwara | 1995-04-04 |
| 5369148 | Method for continuous agglomeration of an absorbent resin powder and apparatus therefor | Hitoshi Takahashi, Hiroyuki Kakita, Teruaki Fujiwara, Kazumi Akihisa | 1994-11-29 |
| 5338810 | Method for production of acrylate and acrylate-containing polymer | Tadao Shimomura, Hitoshi Takahashi, Katsuhiro Kajikawa, Jyunichi Saga, Teruaki Fujiwara +1 more | 1994-08-16 |
| 5298570 | Biodegradable hydrophilic crosslinked polymer, process for producing it, and uses thereof | Hideyuki Tahara, Hiroshi Ito, Masahito Takagi, Keishi Tsuboi, Shigeru Yamaguchi | 1994-03-29 |
| 5281683 | Process for producing water-absorbent resin | Kazutaka Yano | 1994-01-25 |
| 5275773 | Method for production of particulate hydrated gel polymer and absorbent resin | Takumi Hatsuda, Koichi Yonemura | 1994-01-04 |
| 5264495 | Method for production of salt-resistant absorbent resin | Katsuhiro Kajikawa, Hitoshi Takahashi, Teruaki Fujiwara | 1993-11-23 |
| 5250640 | Method for production of particulate hydrogel polymer and absorbent resin | Takumi Hatsuda, Koichi Yonemura, Kazumasa Kimura | 1993-10-05 |
| 5229488 | Method for manufacture of an absorbent resin | Kinya Nagasuna, Katsuhiro Kajikawa, Takumi Hatsuda, Teruaki Fujiwara | 1993-07-20 |
| 5210298 | Method for production of acrylate and acrylate-containing polymer | Tadao Shimomura, Hitoshi Takahashi, Katsuhiro Kajikawa, Jyunichi Saga, Teruaki Fujiwara +1 more | 1993-05-11 |
| 5135677 | Process for producing acid-type maleic acid polymer and water-treating agent and detergent additive containing said polymer | Shigeru Yamaguchi, Shorbu Shioji, Teruaki Fujiwara | 1992-08-04 |
| 5124416 | Method for production of absorbent polymer | Yoshinobu Haruna, Akito Yano, Teruaki Fujihara | 1992-06-23 |