Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624998 | Hardenable composition, aqueous gel and applications | Hiroshi Itoh, Takashi Abe, Hitoshi Yamashita, Atsuhiko Nitta | 1997-04-29 |
| 5519088 | Hardenable composition, aqueous gel and applications thereof | Hiroshi Itoh, Takashi Abe, Hitoshi Yamashita, Atsuhiko Nitta | 1996-05-21 |
| RE33355 | Agent for absorbing and releasing water vapor | Hiroshi Itoh, Toshimi Nakagawa, Atsuhiko Nitta, Tomio Tanaka, Ryosuke Enoshita +4 more | 1990-09-25 |
| 4828710 | Method for the extraction of water from macromolecular solutions | Hiroshi Itoh, Toshimi Nakagawa, Atsuhiko Nitta, Tomio Tanaka | 1989-05-09 |
| 4729834 | Method for adsorbing and desorbing | Hiroshi Itoh, Toshimi Nakagawa, Atsuhiko Nitta, Tomio Tanaka, Katsutoshi Nagai | 1988-03-08 |
| 4725499 | Polymer-coated solid materials | Hiroshi Itoh, Atsuhiko Nitta | 1988-02-16 |
| 4718899 | Urine absorbing and holding material | Hiroshi Itoh, Atsuhiko Nitta, Tomio Tanaka | 1988-01-12 |
| 4701283 | Process for preparing amidoalkanesulfonic acids | Hiroshi Itoh, Atsuhiko Nitta | 1987-10-20 |
| 4683258 | Agent for absorbing and releasing water vapor | Hiroshi Itoh, Toshimi Nakagawa, Atsuhiko Nitta, Tomio Tanaka, Ryosuke Enoshita +4 more | 1987-07-28 |
| 4659773 | Process for preparing amidoalkanesulfonic acids polymers | Hiroshi Itoh, Atsuhiko Nitta | 1987-04-21 |
| 4654177 | Hydroxyalkanesulfonic acids and their derivatives and process for preparing same | Hiroshi Itoh, Atsuhiko Nitta | 1987-03-31 |
| 4649219 | Unsaturated cyclic amido-substituted ether compounds and preparation process thereof | Hiroshi Itoh, Atsuhiko Nitta, Tomio Tanaka | 1987-03-10 |