Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D980411 | Face mask | Seigou Fujishima | 2023-03-07 |
| 4437906 | Flux composition for electro-slag over-lay welding of a cylindrical vessel with a strip electrode | Junji Tateishi, Shozaburo Nakano, Noboru Nishiyama | 1984-03-20 |