Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8648404 | Nonvolatile semiconductor memory device, three-dimensional semiconductor device, and method of manufacturing the same | Katsunori Yahashi | 2014-02-11 |
| 8062940 | Method of manufacturing semiconductor memory device, and semiconductor memory device | Tomoya Satonaka, Katsunori Yahashi | 2011-11-22 |