Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11821349 | Exhaust gas purification catalyst | Shogo Kawamura, Tomomasa Aikawa, Isao Naito, Hiroki NIHASHI, Nobuyuki Takagi | 2023-11-21 |
| 10385753 | Apparatus for diagnosing deterioration of NOx storage-reduction catalyst | Tomomasa Aikawa | 2019-08-20 |
| 10337372 | Exhaust gas purification catalyst device, exhaust gas purification system, and method for detecting deterioration of exhaust gas purification catalyst device | Kazunari Sawada, Hirotaka Ori | 2019-07-02 |
| 10118156 | Exhaust gas purification device | Keiji Horaguchi, Makoto Tsuji, Hiroto Imai, Yasuyoshi SASAKI, Hiroto Yoshida | 2018-11-06 |
| 9517434 | Catalyst system for exhaust gas purification utilizing base metals, and controlling method therefor | — | 2016-12-13 |
| 9409152 | Catalyst support for purification of exhaust gas, catalyst for purification of exhaust gas using the same, and method for producing the catalyst support for purification of exhaust gas | Naoki Kumatani, Akira Morikawa, Kae Konishi, Kimitoshi Sato, Toshitaka Tanabe +5 more | 2016-08-09 |
| 9376327 | Ceria-zirconia base composite oxide, method for producing the same, and catalyst for purification of exhaust gas using the ceria-zirconia base composite oxide | Akira Morikawa, Kae Yamamura, Akihiko Suda, Naoki Takahashi, Oji Kuno +2 more | 2016-06-28 |
| 9297288 | Exhaust purification system for internal combustion engine | Mayuko Osaki, Kazutoshi Akashi, Masao Watanabe, Shigeharu Takagi | 2016-03-29 |
| 9163540 | Exhaust gas control apparatus for internal combustion engine | — | 2015-10-20 |
| 9097167 | Exhaust gas purification device of internal combustion engine | Hiroshi Tanaka, Yusuke Saito, Masao Watanabe | 2015-08-04 |
| 8853120 | Double layered exhaust gas purification catalyst | Yuki Aoki | 2014-10-07 |
| 8835349 | Exhaust purifying catalyst | — | 2014-09-16 |
| 8697600 | Exhaust gas purifying catalyst | Oji Kuno, Akira Morikawa, Kae Yamamura, Naoki Takahashi, Akihiko Suda | 2014-04-15 |