Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11892784 | Developing device and image forming apparatus | — | 2024-02-06 |
| 11609511 | Developing device and image forming apparatus having a reverse helical blade on a downstream end of a developer transport path | Yoshifumi Ozaki, Tomoyuki Yoshii, Norihiro TAMAZAWA | 2023-03-21 |
| 11506997 | Developing device and image forming apparatus | Tomoyuki Yoshii, Yoshifumi Ozaki, Norihiro TAMAZAWA | 2022-11-22 |
| 11036162 | Powder transport apparatus | Norihiro TAMAZAWA, Tomoyuki Yoshii, Yoshitaka Nakajima, Yoshifumi Ozaki | 2021-06-15 |
| 10591843 | Image forming apparatus and developing device | Masanori Kato, Tomoyuki Yoshii, Fumiyuki HONDA, Shiho Matsuda, Yoshitaka Nakajima +3 more | 2020-03-17 |
| 9454104 | Developing device and image forming apparatus | Yasuaki Watanabe, Jun Abe, Tomoyuki Yoshii, Takashi Ochi, Shinji Okuyama +2 more | 2016-09-27 |
| 9417582 | Image forming apparatus including a controller that controls superposition of a correction toner image | Yasuaki Watanabe, Jun Abe, Tomoyuki Yoshii, Toshihiro Kanematsu, Takashi Ochi +2 more | 2016-08-16 |
| 9383683 | Transport mechanism, developing device, and image forming apparatus | Fumiyuki HONDA, Takashi Ochi, Yasuaki Watanabe, Tomoyuki Yoshii, Jun Abe +2 more | 2016-07-05 |
| 7898348 | Terahertz oscillation device | Toshikazu Mukai, Masahiro Asada, Safumi Suzuki | 2011-03-01 |