Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869094 | Gas sampling valve | Kazuhiro Kozuka, Toshihiro Ozasa, Hideaki Takahashi | 1989-09-26 |
| 4844788 | Wide-range air/fuel ratio sensor and detector using the same | Hideaki Takahashi, Keiichi Saji | 1989-07-04 |