Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7085688 | Non-linear characteristic reproducing apparatus and non-linear characteristic reproducing program storage medium | Shizuo Sumida | 2006-08-01 |
| 6920413 | Method and apparatus for identifying characteristic value | Shizuo Sumida, Hiroshi Takata | 2005-07-19 |