Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4686341 | Gas shield chamber for arc welding of rails | Hirokazu Nomura, Yukihiko Sato, Yasuhiko Nishi, Saburo Mori | 1987-08-11 |
| 4672173 | Gas-shielded arc welding apparatus | Hirokazu Nomura, Yukihiko Sato, Eiji Morishige, Yasuhiko Nishi, Saburo Mori | 1987-06-09 |