Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6682976 | Method for manufacturing a nonvolatile semiconductor memory device | Hiroshi Asaka | 2004-01-27 |
| 4831838 | Double air-fuel ratio sensor system carrying out learning control operation | Toshinari Nagai, Takatoshi Masui, Toshiyasu Katsuno | 1989-05-23 |
| 4761950 | Double air-fuel ratio sensor system carrying out learning control operation | Toshinari Nagai, Takatoshi Masui, Toshiyasu Katsuno | 1988-08-09 |
| 4712373 | Double air-fuel ratio sensor system having improved response characteristics | Toshinari Nagai, Takatoshi Masui, Toshiyasu Katsuno | 1987-12-15 |
| 4707984 | Double air-fuel ratio sensor system having improved response characteristics | Toshiyasu Katsuno, Toshinari Nagai, Takatoshi Masui | 1987-11-24 |