Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5473890 | Exhaust purification device of internal combustion engine | Shinichi Takeshima, Toshiaki Tanaka, Satoshi Iguchi, Kiyoshi Nakanishi, Kenji Katoh | 1995-12-12 |
| 5433074 | Exhaust gas purification device for an engine | Shinichi Takeshima, Satoshi Iguchi, Toshiaki Tanaka | 1995-07-18 |
| 5388406 | NOx decreasing apparatus for an internal combustion engine | Shinichi Takeshima, Shinya Hirota | 1995-02-14 |