Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687125 | Semiconductor memory device having redundancy memory cells incorporated into sub memory cell blocks | — | 1997-11-11 |
| 5651912 | Decorative mold for forming concrete surface with uneven pattern | Masanori Mitsumoto, Hideki Kuwabara, Kazuhiko Omori, Satoru Shioya | 1997-07-29 |