Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5153646 | Image forming apparatus with removable developing means | Yasuo Abuyama, Fumito Ide, Takeshi Sanbayashi | 1992-10-06 |
| 4956673 | Image forming apparatus with easily removable developing units | Yasuo Abuyama, Fumito Ide, Takeshi Sanbayashi | 1990-09-11 |
| 4931837 | Removable developing unit for an electrostatic copier and locking device therefor | Yasuo Abuyama, Fumito Ide, Takeshi Sanbayashi | 1990-06-05 |
| 4857954 | Image forming apparatus | Yasuo Abuyama, Fumito Ide, Takeshi Sanbayashi | 1989-08-15 |
| 4814823 | Image forming apparatus | Yasuo Abuyama, Fumito Ide, Takeshi Sanbayashi | 1989-03-21 |