Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8221235 | Drawing machine and game apparatus using the same | Nobuhiro Goto, Kazuhiro Kusuda, Daisuke Sato, Shingo Yasuda | 2012-07-17 |
| 6387552 | TiCN-based cermet | Yusuke Iyori, Yoshio Kimura | 2002-05-14 |
| 5468278 | Cermet alloy | Katsuhiko Kojo | 1995-11-21 |
| 5248352 | TiC-base cermet alloy | Katsuhiko Kojo | 1993-09-28 |