Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7694779 | Sound absorbing material | Tsutomu Yamamoto, Kazuhiko Kosuge, Mineaki Matsumura | 2010-04-13 |
| 6074764 | Clad material | — | 2000-06-13 |
| 5874178 | Cladding material | — | 1999-02-23 |
| 4893744 | Lining method using clad pieces and a clad piece for the method | — | 1990-01-16 |
| 4393122 | Clad steel plates | — | 1983-07-12 |