Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659505 | Electrically programmable and erasable nonvolatile semiconductor memory device and operating method therefor | Shinichi Kobayashi, Yasushi Terada, Yoshikazu Miyawaki, Takeshi Nakayama, Tomoshi Futatsuya +2 more | 1997-08-19 |
| 5646449 | Semiconductor device having a multi-layered conductive structure which includes an aluminum alloy layer, a high melting temperature metal layer, and a high melting temperature nitride layer | Makiko Nakamura, Yasuhiro Fukuda, Yasuyuki Tatara, Yusuke Harada | 1997-07-08 |
| 5639690 | Method for manufacturing a conductive pattern structure for a semiconductor device | — | 1997-06-17 |