Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346791 | Electroconductive magnetic carrier, developer using the same and image formation method | Yoshio Ozawa, Yukio Ikeda | 1994-09-13 |
| 5318873 | Electroconductive magnetic carrier, developer using the same and image formation method | Takao Kawamura, Yasuo Nishiguchi, Yoshio Ozawa, Yukio Ikeda, Hiroshi Itoh | 1994-06-07 |
| 5256513 | Electroconductive magnetic carrier, developer using the same and image formation method | Takao Kawamura, Yasuo Nishiguchi, Yoshio Ozawa, Yukio Ikeda, Hiroshi Itoh | 1993-10-26 |