Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854123 | Method for removal of nitrogen oxides from exhaust gas of diesel engine | Futoru Kinoshita, Kiichiro Mitsui, Akira Inoue | 1989-08-08 |
| 4814153 | Method of cleaning exhaust gases | Akira Inoue, Mitsuharu Hagi, Tsuyoshi Nagai, Hutoru Kinoshita | 1989-03-21 |