Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6682597 | Silicon wafer, and heat treatment method of the same and the heat-treated silicon wafer | Hiroshi Koya, Hisashi Furuya, Yoji Suzuki, Takaaki Shiota | 2004-01-27 |
| 6428619 | Silicon wafer, and heat treatment method of the same and the heat-treated silicon wafer | Hiroshi Koya, Hisashi Furuya, Yoji Suzuki, Takaaki Shiota | 2002-08-06 |