Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628437 | Image reading apparatus | Tetsuichiro Yamamoto | 2003-09-30 |
| 6563608 | Document reading apparatus and light source assembly therefor | Kouji Nakahara, Tetsuichirou Yamamoto | 2003-05-13 |
| 6396044 | Image reading apparatus | Tetsuichirou Yamamoto, Kouji Nakahara | 2002-05-28 |