Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852156 | Private telephone system using a personal code number to access the telephone nearest to the code number holder | — | 1989-07-25 |
| 4810862 | System for judging propriety of use of an integrated circuit card with a card terminal | Harumi Nakano | 1989-03-07 |
| 4809326 | IC card system | — | 1989-02-28 |
| 4803351 | IC card system with control of data-writing process | — | 1989-02-07 |
| 4794236 | IC card system | Shigeyuki Kawana | 1988-12-27 |
| 4752677 | Customer service system for use in IC card system | Harumi Nakano | 1988-06-21 |
| 4749982 | Intelligent card | Kenji Rikuna, Harumi Nakano, Kazuya Hara, Hiroyasu Bito, Eiichi Takeuchi +1 more | 1988-06-07 |
| 4727244 | IC card system | Harumi Nakano | 1988-02-23 |
| 4710613 | Identification system | — | 1987-12-01 |