Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810217 | Process cartridge | Kaori Hiratsuka, Tsutomu Onuma, Nobuyuki Okubo | 2004-10-26 |
| 6696211 | Developer, image-forming method, and process cartridge | Satoshi Yoshida | 2004-02-24 |
| 6673506 | Toner production process | Tsuneo Nakanishi, Tsutomu Onuma, Nobuyuki Okubo, Kaori Hiratsuka | 2004-01-06 |