Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8256207 | Exhaust emission control device for internal combustion engine | Atsushi Takano, Tsukasa Kuboshima | 2012-09-04 |
| 8151559 | Exhaust purification device | Tsukasa Kuboshima | 2012-04-10 |
| 7703278 | Exhaust emission control device of internal combustion engine | Kazuo Kobayashi | 2010-04-27 |
| 7350350 | Exhaust gas purifying apparatus | Kazuo Kobayashi | 2008-04-01 |
| 7313913 | Exhaust gas purification system of internal combustion engine | Kazuo Kobayashi, Hiroshi Haraguchi | 2008-01-01 |
| 7266944 | Exhaust gas filtering system for internal combustion engine | Kazuo Kojima | 2007-09-11 |
| 7254941 | Exhaust gas cleaning device for internal combustion engine | Kazuo Kojima, Hiroshi Haraguchi | 2007-08-14 |
| 7243491 | Exhaust gas purification system of internal combustion engine | Masumi Kinugawa, Kazuo Kobayashi, Tsukasa Kuboshima | 2007-07-17 |
| 7231761 | Exhaust gas purification system of internal combustion engine | Kazuo Kojima, Hiroshi Haraguchi | 2007-06-19 |
| 7152392 | Exhaust gas cleaning system for internal combustion engine | Tsukasa Kuboshima, Masumi Kinugawa, Kiyonori Sekiguchi | 2006-12-26 |
| 7146804 | Exhaust gas cleaning system having particulate filter | Shigeto Yahata, Makoto Saito, Tsukasa Kuboshima | 2006-12-12 |
| 7111455 | Exhaust cleaning device of internal combustion engine | Kazuo Kojima | 2006-09-26 |
| 7076944 | Exhaust gas cleaning system of internal combustion engine | Tsukasa Kuboshima | 2006-07-18 |
| 7028467 | Exhaust emission control device for internal combustion engine | Tsukasa Kuboshima, Hironobu Baba | 2006-04-18 |
| 6969413 | Exhaust gas filtering system having particulate filter for internal combustion engine | Shigeto Yahata, Makoto Saito, Tsukasa Kuboshima, Masumi Kinugawa | 2005-11-29 |
| 6962046 | Exhaust gas cleaning system having particulate filter | Tsukasa Kuboshima, Makoto Saito, Shigeto Yahata | 2005-11-08 |
| 6829889 | Exhaust gas cleaning device for internal combustion engine | Makoto Saito, Shigeto Yahata, Tsukasa Kuboshima | 2004-12-14 |
| 6758039 | Exhaust gas cleaning system having particulate filter | Tsukasa Kuboshima, Makoto Saito, Shigeto Yahata, Masumi Kinugawa | 2004-07-06 |