Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4742374 | Copying apparatus | Takemi Yamamoto, Naoyuki Hatta | 1988-05-03 |
| 4740809 | Optical printing system | Takemi Yamamoto, Ichiro Sasaki, Kouji Kobayakawa, Akira Sago | 1988-04-26 |
| 4701768 | Thermo-magnetic recording device | Masaaki Terazawa | 1987-10-20 |