Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470082 | Communications system using portable recording medium | Hiroyuki Matsui, Satoru Abe, Yutaka Nishino | 2002-10-22 |
| 6229882 | Communications system using portable recording medium | Hiroyuki Matsui, Satoru Abe, Yutaka Nishino | 2001-05-08 |
| 5982877 | Communications system using portable recording medium | Hiroyuki Matsui, Satoru Abe, Yutaka Nishino | 1999-11-09 |