Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671237 | Ignition timing control system for internal combustion engines | Norihisa Ishii, Sumitaka Ogawa | 1987-06-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671237 | Ignition timing control system for internal combustion engines | Norihisa Ishii, Sumitaka Ogawa | 1987-06-09 |