Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10352220 | Exhaust gas stirring device | — | 2019-07-16 |
| 9683476 | Exhaust gas purification device | Yasufumi Umeno | 2017-06-20 |
| 9498750 | Exhaust treatment device | Tatsutoshi Osaki | 2016-11-22 |
| 9097156 | Exhaust gas purifying device | Masafumi Wada, Tatsutoshi Osaki | 2015-08-04 |
| 5337686 | Needle plate apparatus for sewing machine | — | 1994-08-16 |