Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6593167 | IC card indicating state of usage and system therefor | Shinji Nishimura, Toshinori Sonehara | 2003-07-15 |
| 6465880 | IC card indicating state of usage and system therefor | Shinji Nishimura, Toshinori Sonehara | 2002-10-15 |
| 6388562 | Contactless IC card communication system and related method | Masahiro Takiguchi, Kiyoshi Takahashi, Tatsuya Hirata, Shigeru Date, Shinji Nishimura +4 more | 2002-05-14 |
| 6352202 | Method and system for controlling contactless IC cards | Masahiro Takiguchi, Kiyoshi Takahashi, Tatsuya Hirata, Shigeru Date, Shinji Nishimura +4 more | 2002-03-05 |
| 6173900 | IC card | Hiroshi Yoshigi, Takehiro Ookawa, Ryouzou Yoshino, Kimiaki Andou, Tadashi Oonishi +4 more | 2001-01-16 |
| 5619487 | Optical data readout with two beams on three tracks | Takaya Tanabe, Manabu Yamamoto, Kikuji Katoh | 1997-04-08 |