Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7939406 | Nonvolatile semiconductor memory device having element isolating region of trench type | Michiharu Matsui, Riichiro Shirota, Yuji Takeuchi, Takeshi Kamigaichi | 2011-05-10 |