Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660935 | Artificial snowseed and method for making artificial snow | Hideyuki Mekata, Hiroaki Umezu, Hiroshi Matsunaga | 1997-08-26 |
| 5632152 | Artificial snow in an aggregate form of snow granules | Yuichiro Miura, Kazuo Hirano, Takayuki Nate, Masahisa Ohtsuka, Toshitake Nagai | 1997-05-27 |