Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227843 | Drive transmission system for a process cartridge used in an image forming apparatus | Shunji Yamamoto, Hiromitsu Saijo, Hideji Hayashi | 1993-07-13 |
| 4571064 | Optical element positioning apparatus for use in electrophotographic copying machine | Masamichi Hayashi | 1986-02-18 |