Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4413471 | Air-fuel ratio control apparatus of an internal combustion engine | Kyo Hattori, Noriyoshi Shibata | 1983-11-08 |
| 4383512 | Air-fuel ratio control device of an internal combustion engine | Norikatsu Ishikawa, Hidemi Onaka, Haruyuki Obata, Takao Tate, Toshio Tanahashi | 1983-05-17 |
| 4341190 | Air-fuel ratio control device of an internal combustion engine | Norikatsu Ishikawa, Haruyuki Obata, Hidemi Onaka, Takao Tate, Toshio Tanahashi | 1982-07-27 |