Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7980204 | Reserve tank | Hiroyuki Okumura, Toshirou Matsubara, Hiroaki Nakano, Tadashi Akiyama, Shinji Miyawaki | 2011-07-19 |
| 7922004 | Diesel filter | Yoshiharu Matsushita, Suminobu Otsubo, Satoshi Nagata | 2011-04-12 |
| 7906022 | Diesel filter | Yoshiharu Matsushita, Suminobu Otsubo, Satoshi Nagata | 2011-03-15 |