Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624998 | Hardenable composition, aqueous gel and applications | Hiroshi Itoh, Takashi Abe, Hideo Kamio, Hitoshi Yamashita | 1997-04-29 |
| 5519088 | Hardenable composition, aqueous gel and applications thereof | Hiroshi Itoh, Takashi Abe, Hideo Kamio, Hitoshi Yamashita | 1996-05-21 |
| 5306572 | EL element comprising organic thin film | Yutaka Ohashi, Nobuhiro Fukuda, Sadao Kobayashi | 1994-04-26 |
| 5292821 | Catonic acrylamide polymers and the applications of these polymers | Toshihiko Takaki, Kenji Tsuboi, Hiroshi Itoh | 1994-03-08 |
| 5239014 | Cationic acrylamide polymers and the applications of these polymers | Toshihiko Takaki, Kenji Tsuboi, Hiroshi Itoh | 1993-08-24 |
| 5200668 | Luminescence element | Yutaka Ohashi, Nobuhiro Fukuda, Hiroshi Waki | 1993-04-06 |
| 5155191 | Preparation process of granular polymers | Hiroshi Itoh, Takashi Abe, Kouji Ohkoshi | 1992-10-13 |
| 5039757 | Method of manufacturing cationic acrylamide polymers, cationic acrylamide polymers, and the applications of these polymers | Toshihiko Takaki, Kenji Tsuboi, Hiroshi Itoh | 1991-08-13 |
| RE33355 | Agent for absorbing and releasing water vapor | Hiroshi Itoh, Toshimi Nakagawa, Tomio Tanaka, Hideo Kamio, Ryosuke Enoshita +4 more | 1990-09-25 |
| 4835312 | Production process of N-substituted amide compounds | Hiroshi Itoh, Toshimi Nakagawa | 1989-05-30 |
| 4828710 | Method for the extraction of water from macromolecular solutions | Hiroshi Itoh, Toshimi Nakagawa, Tomio Tanaka, Hideo Kamio | 1989-05-09 |
| 4729834 | Method for adsorbing and desorbing | Hiroshi Itoh, Toshimi Nakagawa, Tomio Tanaka, Hideo Kamio, Katsutoshi Nagai | 1988-03-08 |
| 4725499 | Polymer-coated solid materials | Hiroshi Itoh, Hideo Kamio | 1988-02-16 |
| 4718899 | Urine absorbing and holding material | Hiroshi Itoh, Tomio Tanaka, Hideo Kamio | 1988-01-12 |
| 4701283 | Process for preparing amidoalkanesulfonic acids | Hiroshi Itoh, Hideo Kamio | 1987-10-20 |
| 4683258 | Agent for absorbing and releasing water vapor | Hiroshi Itoh, Toshimi Nakagawa, Tomio Tanaka, Hideo Kamio, Ryosuke Enoshita +4 more | 1987-07-28 |
| 4659773 | Process for preparing amidoalkanesulfonic acids polymers | Hiroshi Itoh, Hideo Kamio | 1987-04-21 |
| 4654177 | Hydroxyalkanesulfonic acids and their derivatives and process for preparing same | Hiroshi Itoh, Hideo Kamio | 1987-03-31 |
| 4649219 | Unsaturated cyclic amido-substituted ether compounds and preparation process thereof | Hiroshi Itoh, Tomio Tanaka, Hideo Kamio | 1987-03-10 |