Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6747546 | Data communication transponder and communications system employing it | Junichi Hikita, Yoshihiro Ikefuji | 2004-06-08 |
| 6724296 | Communications system having an authentication function | Junichi Hikita, Yoshihiro Ikefuji | 2004-04-20 |
| 6679424 | Non contact type IC card | Junichi Hikita, Yoshihiro Ikefuji, Shigemi Chimura | 2004-01-20 |