Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10269821 | Three-dimensional semiconductor memory device and method for manufacturing the same | Katsuyuki Sekine, Hirokazu Ishigaki, Makoto Fujiwara | 2019-04-23 |
| 10181477 | Semiconductor device and method for manufacturing same | Hirokazu Ishigaki, Tatsuya Okamoto | 2019-01-15 |