Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808293 | Oxygen sensor and method of making such sensor | Hiroshi Fukuda, Kenzo Ohji | 1989-02-28 |
TN
Takeshi Nagai
Overall (1989): #52,824 of 140,708Top 40%
1
Patents 1989