Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8435320 | Ceramic honeycomb filter | Toshitaka Ishizawa, Kenichiro Sekiguchi | 2013-05-07 |
| 8092568 | Ceramic honeycomb filter and its production method | Hirohisa Suwabe | 2012-01-10 |