Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5179536 | Semiconductor memory device having means for replacing defective memory cells | Yasushi Kasa, Yoshihiro Takemae, Masanori Nagasawa, Yuji Arayama, Akira Terui | 1993-01-12 |
| 5140597 | Semiconductor memory device having mask ROM structure | — | 1992-08-18 |