Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6003320 | Cold accumulating material for extremely low temperature cold, refrigerator using the same and heat shielding member | Masami Okamura, Tomohisa Arai, Keisuke Hashimoto, Hideki Nakagome | 1999-12-21 |