Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678781 | Reversal preventive device | Eiji Shinohara, Takashi Higashimoto | 1997-10-21 |
| 5662286 | Reversal preventive device | — | 1997-09-02 |
| 5632152 | Artificial snow in an aggregate form of snow granules | Yuichiro Miura, Takayuki Nate, Taiji Kambayashi, Masahisa Ohtsuka, Toshitake Nagai | 1997-05-27 |