Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4637367 | Crankcase emission control system for an internal combustion engine | — | 1987-01-20 |
| 4369752 | Exhaust gas purification control apparatus for internal combustion engine | Kosuke Ito, Hiroshi Iida, Masanori Harada | 1983-01-25 |