Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6028940 | Virtual shop computer network system which displays member shops and member shop certification method | Youko Tanaka, Seizo Motai | 2000-02-22 |
| 6012637 | Card system for collectively loading right of use in predetermined amount of money and method of processing the card | Seizo Motai, Youko Tanaka | 2000-01-11 |
| 4855578 | Portable storage medium processing system | Hiroshi Ohba | 1989-08-08 |
| 4827512 | Programmable portable electronic device | Yasuo Iijima | 1989-05-02 |
| 4766294 | Portable medium | Seietsu Nara, Kenichi Kobayashi | 1988-08-23 |
| 4672182 | Memory card | — | 1987-06-09 |