Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828156 | Evaluating method for NOx eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor | Minoru Ohsuga, Mamoru Fujieda | 2004-12-07 |
| 6812029 | Evaluating method for NOx eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor | Minoru Ohsuga, Mamoru Fujieda | 2004-11-02 |
| 6725709 | Combustion state diagnosing system and combustion state diagnosing method for diagnosing engine and recording medium | Yutaka Takaku, Toshio Ishii, Hiroshi Kimura | 2004-04-27 |
| 6701881 | Suction device for internal combustion engine | Minoru Ohsuga, Junichi Yamaguchi, Yasushi Sasaki | 2004-03-09 |