Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4243370 | Die for extruding a honeycomb structural body | Noboru Higuchi | 1981-01-06 |
| 4242075 | Extrusion dies for extruding honeycomb structural bodies | Noboru Higuchi | 1980-12-30 |