Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916927 | Process for producing non-flammable phenolic resin foam | Osamu Minagawa | 1999-06-29 |
| 5681639 | Waterproof lightweight grain-tone decorative panel | Osamu Minagawa | 1997-10-28 |
| 5679452 | Expanded ceramic molded plate | Osamu Minagawa | 1997-10-21 |