Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D466143 | Video projector | — | 2002-11-26 |
| 5630579 | Automatic manuscript sheet feeder | Kouichi Minami, Mitsuru Wakabayashi, Yoshihiro Takahashi | 1997-05-20 |
| D373779 | Combined overhead projector and automatic film feeding unit | Yoshihiro Takahashi, Mitsuru Wakabayashi | 1996-09-17 |
| D330042 | Combined whiteboard and photocopier | Hidehiko Yamaguchi, Yoshihisa Hirano | 1992-10-06 |