Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333548 | Semiconductor device with etch stopping film | Norihisa Arai | 2001-12-25 |
| 6020229 | Semiconductor device method for manufacturing | Norihisa Arai | 2000-02-01 |
| 5930169 | Nonvolatile semiconductor memory device capable of improving of chip's lifetime and method of operating the same | Yoshihisa Iwata | 1999-07-27 |