Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6779584 | Method for manufacturing a core mold for foam-molding and the core mold | Tsuyoshi Umetani, Mituharu Yamazumi | 2004-08-24 |
| 4262041 | Process for preparing a composite amphoteric ion exchange membrane | Tamiyuki Eguchi, Seiichi Mori | 1981-04-14 |