Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5888442 | Method of manufacturing a filter element | Toshiaki Nakayama, Satoshi Inukai, Takanari Takagaki, Hideo Kamo, Minoru Honda | 1999-03-30 |
| 5720790 | Filter element | Toshiaki Nakayama, Satoshi Inukai, Takanari Takagaki, Hideo Kamo, Minoru Honda | 1998-02-24 |
| 5502283 | Muffler | Hidehito Ukai, Kazuyuki Horie, Toshiaki Nakayama | 1996-03-26 |