Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6900688 | Switch circuit | Kouji Hirayama | 2005-05-31 |
| 6795356 | Wrong operation preventing circuit in semiconductor unit | — | 2004-09-21 |
| 6480979 | Semiconductor integrated circuits and efficient parallel test methods | — | 2002-11-12 |
| 6373326 | Writing circuit | — | 2002-04-16 |
| 4990760 | IC card having means for protecting erroneous operation | Kougi Tanagawa | 1991-02-05 |
| 4901320 | Self-correcting semiconductor memory device and microcomputer incorporating the same | Kikuzo Sawada, Kouzi Tanagawa, Tomoaki Yoshida | 1990-02-13 |