Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10472429 | Package of water absorbent resin powder | Sumio Okuda, Kazumasa Konishi, Kunihiko Ishizaki | 2019-11-12 |
| 10301398 | Production method of water absorbent resin powder and package of water absorbent resin powder | Sumio Okuda, Kazumasa Konishi, Kunihiko Ishizaki | 2019-05-28 |
| 9393764 | Automobile fuel tank | Ryuta Aoe, Hiroyuki Tanaka, Kazuaki Naito, Hisamitsu Kato, Hisayuki Iwai +1 more | 2016-07-19 |
| 9382390 | Process for continuous production of water-absorbent resin product | Kunihiko Ishizaki | 2016-07-05 |
| 7193006 | Process for continuous production of water-absorbent resin product | Kunihiko Ishizaki | 2007-03-20 |
| 7153910 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Kunihiko Ishizaki, Takumi Hatsuda, Kazuhisa Hitomi, Soichi Yamada | 2006-12-26 |
| 7078458 | Method for production of hydrophilic resin | Yoshio Irie, Kunihiko Ishizaki, Takumi Hatsuda | 2006-07-18 |
| 6998447 | Method for production of hydrophilic resin | Yoshio Irie, Kunihiko Ishizaki, Takumi Hatsuda | 2006-02-14 |
| 6727345 | Continuous production process for water-absorbent resin powder and powder surface detector used therefor | Toru Nishioka, Hirotama Fujimaru, Kunihiko Ishizaki | 2004-04-27 |
| 6716894 | Water-absorbent resin powder and its production process and uses | Toru Nishioka, Hirotama Fujimaru, Kunihiko Ishizaki | 2004-04-06 |
| 6667372 | Continuous manufacturing method of water-absorbent polymer | Koji Miyake, Takumi Hatsuda, Sachio Fujita, Takashi Nishigaki, Kunihiko Ishizaki | 2003-12-23 |
| 6458921 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Kunihiko Ishizaki, Takumi Hatsuda, Kazuhisa Hitomi, Soichi Yamada | 2002-10-01 |
| 6388000 | Method for production of hydrophilic resin | Yoshio Irie, Kunihiko Ishizaki, Takumi Hatsuda | 2002-05-14 |
| 6241928 | Method for production of shaped hydrogel of absorbent resin | Takumi Hatsuda, Hideyuki Tahara, Koji Miyake, Akito Yano, Takanori Murakami | 2001-06-05 |
| 6228930 | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule | Yorimichi Dairoku, Kunihiko Ishizaki, Takumi Hatsuda, Kazuhisa Hitomi, Soichi Yamada | 2001-05-08 |
| 6133193 | Absorbent resin composition and method for production thereof | Takumi Hatsuda, Masatoshi Nakamura | 2000-10-17 |
| 6103785 | Water-absorbing agent and its production process and use | Kinya Nagasuna | 2000-08-15 |
| 5866678 | Absorbent and method for production of absorbent resin | Kinya Nagasuna, Yoshihiko Masuda | 1999-02-02 |
| 5807361 | Blood-absorbent resin composition and absorbent articles | Takumi Hatsuda, Masatoshi Nakamura | 1998-09-15 |
| 5532323 | Method for production of absorbent resin | Kazutaka Yano, Kinya Nagasuna, Yoshio Irie | 1996-07-02 |
| 5478879 | Method for production of absorbent resin | Yoshihiko Masuda, Kinya Nagasuna, Yoshio Irie | 1995-12-26 |
| 5338810 | Method for production of acrylate and acrylate-containing polymer | Tadao Shimomura, Yoshio Irie, Hitoshi Takahashi, Jyunichi Saga, Teruaki Fujiwara +1 more | 1994-08-16 |
| 5264495 | Method for production of salt-resistant absorbent resin | Yoshio Irie, Hitoshi Takahashi, Teruaki Fujiwara | 1993-11-23 |
| 5229488 | Method for manufacture of an absorbent resin | Kinya Nagasuna, Takumi Hatsuda, Yoshio Irie, Teruaki Fujiwara | 1993-07-20 |
| 5210298 | Method for production of acrylate and acrylate-containing polymer | Tadao Shimomura, Yoshio Irie, Hitoshi Takahashi, Jyunichi Saga, Teruaki Fujiwara +1 more | 1993-05-11 |