Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D422977 | Electronic exchange | Shingo Hirose, Hiroshi Yoshikawa, Toshihiko Umeda | 2000-04-18 |
| D421423 | Card reading-writing device with modem | Yukio Kuroiwa, Junichi Tanji, Kotaro Yamashita | 2000-03-07 |