Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5409551 | Method for minimizing surface roughening of tungsten-containing rolls and other metallic articles | Shigeki Azuma, Yoshiaki Kusaba, Hideo Yamamoto | 1995-04-25 |
| 4627998 | Carbon fiber reinforced concrete | Shigeyuki Akihama, Tatsuo Suenaga, Makoto Saito, Hideki Ikeda, Masanori Aya +3 more | 1986-12-09 |