Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484000 | Sealing member which prevents contamination when removed and container having the sealing member | Keiji Okamoto | 2002-11-19 |
| 6256465 | Image forming apparatus and image forming unit therefor | Hiroshi Yoshinaga, Takeo Suda | 2001-07-03 |
| D418862 | Toner cartridge | Takaaki Tawada, Takeo Suda, Akiyoshi Tanaka | 2000-01-11 |
| 5212521 | Developing unit housing with toner seals for image recording apparatus | Tetsuo Yamanaka | 1993-05-18 |