Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6403973 | Electron beam exposure method and apparatus and semiconductor device manufactured using the same | Hiroyuki Takahashi, Masahide Okumura, Koji Nagata | 2002-06-11 |
| 6373708 | Contactless IC card | Takehiro Ohkawa, Kazuo Kaneko | 2002-04-16 |
| 6352202 | Method and system for controlling contactless IC cards | Masahiro Takiguchi, Kiyoshi Takahashi, Tatsuya Hirata, Shigeru Date, Hisanobu Dobashi +4 more | 2002-03-05 |