Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10119446 | Deterioration diagnosis apparatus for exhaust gas purification apparatus | Koji Hagiwara, Toru Kidokoro, Yasushi Iwazaki, Yuji Miyoshi | 2018-11-06 |
| 10072544 | Deterioration diagnosis apparatus for the exhaust gas purification apparatus | Koji Hagiwara, Takahiko Fujiwara, Toru Kidokoro, Yasushi Iwazaki | 2018-09-11 |