Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6747546 | Data communication transponder and communications system employing it | Haruo Taguchi, Yoshihiro Ikefuji | 2004-06-08 |
| 6742117 | IC card and method of using IC card | Yoshihiro Ikefuji, Toyokazu Komuro | 2004-05-25 |
| 6724084 | Semiconductor chip and production thereof, and semiconductor device having semiconductor chip bonded to solid device | Goro Nakatani, Nobuhisa Kumamoto, Katsumi Sameshima, Kazutaka Shibata, Shigeyuki Ueda | 2004-04-20 |
| 6724296 | Communications system having an authentication function | Haruo Taguchi, Yoshihiro Ikefuji | 2004-04-20 |
| 6717244 | Semiconductor device having a primary chip with bumps in joined registration with bumps of a plurality of secondary chips | Koji Yamamoto | 2004-04-06 |
| 6696347 | Production process for semiconductor device | Kazutaka Shibata, Shigeyuki Ueda | 2004-02-24 |
| 6679424 | Non contact type IC card | Yoshihiro Ikefuji, Shigemi Chimura, Haruo Taguchi | 2004-01-20 |