Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879445 | Seam welding apparatus with edge detection | Hitoshi Kawano, Mitsuhiro Hayashi, Yukio Yamamoto | 1989-11-07 |
| 4868364 | Seam welder with feedback control to compensate for varying welding speed | Hitoshi Kawano, Mitsuhiro Hayashi, Yukio Yamamoto | 1989-09-19 |