Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5272305 | Girth-welding process for a pipe and a high cellulose type coated electrode | Shigeru Endo, Moriyasu Nagae, Motokiyo Itoh, Takeshi Sugino | 1993-12-21 |
| 5155333 | Low hydrogen type coated electrode | Takashi Wada, Tomoyuki Abe | 1992-10-13 |