Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772954 | Copying machine | Keizou Shin, Hiroshi Sakamoto, Tadashi Yamaguchi, Terumichi Nakayama, Yoshihiro Motomura | 1988-09-20 |
| 4716291 | Copying machine | Hiroshi Sakamoto, Tadashi Yamaguchi | 1987-12-29 |