Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657362 | Method for improving durability of exhaust pipe | Yoshihiko Nozaki, Jouji Hagiwara, Kazuhiro Hirakawa | 2017-05-23 |
| 8480962 | Exhaust gas purification apparatus for engine | Koutarou Honda | 2013-07-09 |