Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889089 | Work vehicle | Makizo Hirata, Shinichi Tamba | 1989-12-26 |
| 4862981 | Internal combustion engine and devices employing same | Keisuke Tomonaga, Shinichi Tamba, Hitomi Miyake | 1989-09-05 |
| 4798082 | Control-display device for an engine-equiped apparatus | Yoichi Yamaguchi, Akira Takahashi | 1989-01-17 |