Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8052868 | Fuel filter device | Hiroji Sato, Shigeru Takahashi, Takaya Ogawa | 2011-11-08 |
| 7964096 | Filter device utilizing returned fuel to prolong filter life | Toshihide Kimisawa | 2011-06-21 |