Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828001 | Vacuum heat-insulating panel and method of manufacturing the same | Katsuhiko Umeda | 2004-12-07 |
| 6739104 | Vacuum heat-insulating block | Katsuhiko Umeda | 2004-05-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828001 | Vacuum heat-insulating panel and method of manufacturing the same | Katsuhiko Umeda | 2004-12-07 |
| 6739104 | Vacuum heat-insulating block | Katsuhiko Umeda | 2004-05-25 |