Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D308050 | Electronic computer | Yoshihiko Sugano | 1990-05-22 |
| D307752 | Electronic private branch exchange housing or similar article | Shin-ichiro Yoshida, Ryouichi Himeno | 1990-05-08 |