Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8435320 | Ceramic honeycomb filter | Toshitaka Ishizawa, Masakazu Konomi | 2013-05-07 |
| 7785385 | Ceramic honeycomb structure and moldable material usable for its extrusion molding | Tsunehiro Kawata, Osamu Tokudome, Hirohisa Suwabe, Hideya Yamane | 2010-08-31 |