Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7014812 | Sulfur-containing free-cutting steel for machine structural use | Tatsuo Fukuzumi, Motoki Watanabe, Katsuyuki Uchibori | 2006-03-21 |
| 6737019 | Sulfur-containing free-cutting steel | Tatsuo Fukuzumi, Motoki Watanabe | 2004-05-18 |
| 4784922 | Corrosion-resistant clad steel and method for producing the same | — | 1988-11-15 |
| 4682914 | Hydraulic trench support | Isamu Aihara | 1987-07-28 |
| 4614632 | Method and apparatus for continuously forming embossed sheets | Seiju Kezuka, Tadayoshi Kato, Moriya Iida | 1986-09-30 |
| 4524819 | Method of manufacturing leaded free-cutting steel by continuous casting process | — | 1985-06-25 |