Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12077032 | Passage opening and closing device | Yoshihiro Suzuki, Fumitaka Yoshizumi, Takayuki Aoyama | 2024-09-03 |
| 4883420 | Die for extruding honeycomb structural bodies | Satoru Inoue, Shoji Futamura | 1989-11-28 |
| 4780075 | Dies for extrusion-shaping ceramic honeycomb structural bodies | Shoji Futamura | 1988-10-25 |
| 4707904 | Method of manufacturing a die for extruding honeycomb body | Shoji Futamura | 1987-11-24 |
| 4687433 | Die for extruding ceramic honeycomb structural bodies | Shoji Futamura, Masaru Kojima, Satoru Inoue | 1987-08-18 |
| 4653996 | Die for extruding honeycomb structural body | Shoji Futamura | 1987-03-31 |
| 4278412 | Extrusion die assembly for forming honeycomb structures | Shuichi Otsu | 1981-07-14 |