Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7740809 | Exhaust gas-cleaning apparatus | Hirohisa Suwabe | 2010-06-22 |
| 7549286 | Exhaust emission control device | Munetomo Matsunami | 2009-06-23 |
| 7107763 | Ceramic honeycomb filter and exhaust gas-cleaning method | Hirohisa Suwabe, Takashi Takakura, Satoshi Makita | 2006-09-19 |
| 7051521 | Exhaust aftertreatment system | — | 2006-05-30 |
| 6827754 | Ceramic honeycomb filter | Hirohisa Suwabe, Yasuhiko Otsubo, Shinya Tokumaru, Keiichi Nakagome, Makoto Tsujita +1 more | 2004-12-07 |
| 4993513 | Muffler | Takeshi Inoue, Yukihiro Nakagawa | 1991-02-19 |
| 4880078 | Exhaust muffler | Takeshi Inoue, Yukihiro Nakagawa | 1989-11-14 |
| 4589516 | Muffler for internal combustion engines | Takeshi Inoue, Hiroyuki Saito, Tomoyuki Takewaka | 1986-05-20 |