Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5390729 | Refractory element | Akira Sakurai, Toshikazu Yano, Masao Ochi, Toshihiro Sugawara | 1995-02-21 |
| 5379610 | Refractory element | Akira Sakurai, Toshikazu Yano, Masao Ochi, Toshihiro Sugawara | 1995-01-10 |
| 5329785 | Refractory element | Akira Sakurai, Toshikazu Yano, Masao Ochi, Toshihiro Sugawara | 1994-07-19 |