Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6188857 | Imaging forming apparatus provided with photoreceptor unit with internal gear unit, the protector unit with internal gear, and internal gear unit | Toshio Yamanaka, Yoshiharu Yoneda, Yasuji Yamauchi, Hideaki Kadowaki, Yoshikazu Harada | 2001-02-13 |
| 6161446 | Image forming apparatus provided with photoreceptor unit with internal gear unit, the photoreceptor unit with internal gear, and internal gear unit | Toshio Yamanaka, Yoshiharu Yoneda, Yasuji Yamauchi, Hideaki Kadowaki, Yoshikazu Harada | 2000-12-19 |
| 5927148 | Image forming apparatus equipped with photoreceptor having an internal gear | Toshio Yamanaka, Yoshiharu Yoneda, Yasuji Yamauchi, Hideaki Kadowaki, Yoshikazu Harada | 1999-07-27 |
| 5923922 | Image forming apparatus with flying toner detecting device | Toshihisa Ishida, Katuaki Sumida, Kanshiro Okamoto, Jitsuo Masuda, Masato Asanuma +3 more | 1999-07-13 |
| 5839018 | Toner density control for an image forming apparatus | Masato Asanuma, Toshiaki Ino, Kanshiro Okamoto, Hideji Saiko, Toshihisa Ishida +8 more | 1998-11-17 |
| 5023161 | Method of making a toner for use in electrophotography | Tadashi Nakamura, Yoshiaki Takahashi, Kazuya Maeda | 1991-06-11 |
| 4758490 | Magnetic color toner for electrophotographic copying machine | — | 1988-07-19 |