Issued Patents All Time
Showing 76–100 of 104 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6992144 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Kinya Nagasuna, Yoshihiko Masuda, Nobuyuki Harada, Yoshihiro Motono | 2006-01-31 |
| 6927268 | Production process for water-absorbent resin | Yukihiro Matsumoto, Teruyuki Kanto | 2005-08-09 |
| 6906159 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Yorimichi Dairoku, Yoshio Irie, Shinichi Fujino, Yasuhiro Fujita, Takashi Azumi | 2005-06-14 |
| 6727345 | Continuous production process for water-absorbent resin powder and powder surface detector used therefor | Katsuhiro Kajikawa, Toru Nishioka, Hirotama Fujimaru | 2004-04-27 |
| 6720389 | Water-absorbent resin and production process therefor | Takumi Hatsuda, Yoshio Irie, Masatoshi Nakamura, Katsuyuki Wada, Shinichi Fujino +1 more | 2004-04-13 |
| 6716894 | Water-absorbent resin powder and its production process and uses | Katsuhiro Kajikawa, Toru Nishioka, Hirotama Fujimaru | 2004-04-06 |
| 6667372 | Continuous manufacturing method of water-absorbent polymer | Koji Miyake, Takumi Hatsuda, Sachio Fujita, Takashi Nishigaki, Katsuhiro Kajikawa | 2003-12-23 |
| 6617489 | Absorbent, absorbing product based thereon, and water-absorbing resin | Katsuyuki Wada, Naoko Takahashi | 2003-09-09 |
| 6576713 | Water-absorbent resin powder and production process therefor | Teruyuki Kanto, Nobuyuki Harada, Takumi Hatsuda, Shinichi Fujino | 2003-06-10 |
| 6562879 | Water-absorbent resin powder and its production process and use | Takumi Hatsuda, Hiroyuki Ikeuchi, Koji Miyake, Yoshio Irie | 2003-05-13 |
| 6458921 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Takumi Hatsuda, Kazuhisa Hitomi, Katsuhiro Kajikawa, Soichi Yamada | 2002-10-01 |
| 6444744 | Hydrophilic resin, absorbent article, and acrylic acid for polymerization | Hirotama Fujimaru, Nobuyuki Harada, Sei Nakahara | 2002-09-03 |
| 6388000 | Method for production of hydrophilic resin | Yoshio Irie, Katsuhiro Kajikawa, Takumi Hatsuda | 2002-05-14 |
| 6297319 | Water-absorbing agent and production process therefor | Kinya Nagasuna, Shinichi Fujino, Masatoshi Nakamura | 2001-10-02 |
| 6254990 | Surface-crosslinking process for water-absorbent resin | Teruyuki Kanto, Shigeru Sakamoto, Nobuyuki Harada, Kazuhisa Hitomi | 2001-07-03 |
| 6251960 | Process for production of water absorbent resin | Hisanobu Obara, Nobuyuki Harada, Yoshihiro Motono, Koji Miyake | 2001-06-26 |
| 6228930 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Takumi Hatsuda, Kazuhisa Hitomi, Katsuhiro Kajikawa, Soichi Yamada | 2001-05-08 |
| 6187872 | Water-absorbent agent and method for manufacturing the same | Toru Yanase, Kazuki Kimura, Shin-ichi Fujino, Kinya Nagasuna, Hirotama Fujimaru +1 more | 2001-02-13 |
| 6184433 | Pressure-resistant absorbent resin, disposable diaper using the resin, and absorbent resin, and method for production thereof | Nobuyuki Harada, Hirotama Fujimaru, Toshimasa Kitayama | 2001-02-06 |
| 6071976 | Water absorbing agent, manufacturing method thereof, and manufacturing machine thereof | Yorimichi Dairoku, Toshimasa Kitayama, Kinya Nagasuna, Takanori Murakami, Akito Yano | 2000-06-06 |
| 6001911 | Absorbent resin, absorbent material and method of manufacturing the same | Hisanobu Obara, Toshimasa Kitayama, Yoshihiro Motono, Nobuyuki Harada | 1999-12-14 |
| 5985944 | Water-absorbent resin, process for production thereof, and water-absorbent resin composition | Hisanobu Obara, Nobuyuki Harada, Yoshihiro Motono, Koji Miyake | 1999-11-16 |
| 5981070 | Water-absorbent agent powders and manufacturing method of the same | Kinya Nagasuna, Nobuyuki Harada | 1999-11-09 |
| 5797893 | Absorbing agent composition, absorbent material, and absorbent product containing absorbent material | Katsuyuki Wada, Kinya Nagasuna | 1998-08-25 |
| 5610208 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Kinya Nagasuna, Yoshihiko Masuda, Nobuyuki Harada, Yoshihiro Motono | 1997-03-11 |