Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8721979 | Honeycomb structure and exhaust gas purifying apparatus | Shigeaki Goto | 2014-05-13 |
| 8617476 | Honeycomb filter and urea SCR device | Kazutake Ogyu | 2013-12-31 |
| 8257660 | Honeycomb filter | Kazutake Ogyu | 2012-09-04 |
| 8080211 | Honeycomb filter | Kazutake Ogyu | 2011-12-20 |