Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7250863 | Transponder and a sensing system using the transponder | Ryo Nemoto, Kazuki Watanabe, Yoshiaki Yazawa, Yasushi Goto, Hiroshi Yoshigi | 2007-07-31 |
| 6972662 | RFID (radio frequency identification) and IC card | Takehiro Ohkawa, Miki Yuyama, Hiroshi Yoshigi, Kazuki Watanabe | 2005-12-06 |
| 6955300 | Dual interface IC card | Hiroshi Yoshigi, Takehiro Ookawa, Kazuki Watanabe | 2005-10-18 |
| 6637664 | Composite IC card | Hiroshi Yoshigi, Takehiro Ookawa, Kazuki Watanabe | 2003-10-28 |
| 6585166 | Composite IC card | Takehiro Ookawa, Hiroshi Yoshigi, Kazuki Watanabe | 2003-07-01 |
| 6173900 | IC card | Hiroshi Yoshigi, Takehiro Ookawa, Ryouzou Yoshino, Kimiaki Andou, Koji Tsuru +4 more | 2001-01-16 |