Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4302248 | High manganese non-magnetic steel with excellent weldability and machinability | Senri Ishioka, Makoto Yamaga, Hiromichi Hirano, Hitoshi Ihara | 1981-11-24 |
| 4210445 | Niobium-containing weldable structural steel having good weldability | Mutsuo Hiromatsu, Syuzi Takashima, Takasi Hosoya, Takamichi Hamanaka | 1980-07-01 |