Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823642 | Air-fuel ratio controlling apparatus of an engine with an automatic change gear of electronic control type | Masato Iwaki, Ikuo Okamoto, Kenji Ushijima | 1989-04-25 |
| 4818848 | Automatic wire connecting apparatus for wire cut electric discharge machine | Haruki Obara, Toshiyuki Aso, Tamotsu Ishibashi | 1989-04-04 |
| 4816636 | Wire cut electric discharge machine | Haruki Obara, Toshiyuki Aso | 1989-03-28 |
| 4801920 | EL panel drive system | Toshihiro Ohba, Yoshiharu Kanatani, Hisashi Uede | 1989-01-31 |