Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469163 | Home server | Yoshinori Hatayama, Hiroshi Takemura | 2008-12-23 |
| 6028940 | Virtual shop computer network system which displays member shops and member shop certification method | Seizo Motai, Katsuhisa Hirokawa | 2000-02-22 |
| 6012637 | Card system for collectively loading right of use in predetermined amount of money and method of processing the card | Katsuhisa Hirokawa, Seizo Motai | 2000-01-11 |