Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8105927 | Method for manufacturing ion implantation mask, and method for manufacturing silicon carbide semiconductor device | Ken Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Koichi Nishikawa, Masaaki Shimizu +1 more | 2012-01-31 |
| 7709862 | Ion implantation mask and method for manufacturing same, silicon carbide semiconductor device using ion implantation mask, and method for manufacturing same | Ken Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Koichi Nishikawa, Masaaki Shimizu +1 more | 2010-05-04 |
| 7544552 | Method for manufacturing junction semiconductor device | Ken Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Kensuke Iwanaga, Yoshimitsu Saito +4 more | 2009-06-09 |