Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874759 | Plug valve | Takashi Tozaki | 2005-04-05 |
| 5201977 | Process for producing structures from synthetic single-crystal pieces | — | 1993-04-13 |
| 5013380 | Process for producing integrated structures of synthetic corundum single-crystals | — | 1991-05-07 |