Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250602 | Polymer emulsion and method for preparing the same | Naotaka Watanabe, Yoshio Hosoya | 1993-10-05 |
| 5213166 | Pile driving and pile removing method | Naotaka Watanabe, Akio Kitamura | 1993-05-25 |
| 5180473 | Paper-making process | Kenichi Akune, Naotaka Watanabe, Yukihiro Inomiya, Takeo Arai, Reiko Funato | 1993-01-19 |
| 5022999 | Method of treating starch-containing water | Naotaka Watanabe, Reiko Funato | 1991-06-11 |