TO

Toshifumi Oikawa

Canon: 8 patents #7,260 of 19,416Top 40%
📍 Ibaraki, JP: #1,290 of 6,779 inventorsTop 20%
Overall (All Time): #606,815 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12405560 Charge-eliminating apparatus and image forming system Takuya Masaki 2025-09-02
12039210 Image forming system that executes recovery process Kiyoharu Kakomura, Noriaki Matsui, Takashi Yokoya, Takuya Machida, Shun Motohashi +1 more 2024-07-16
11934121 Image forming apparatus that performs shading correction to maintain print position accuracy Koji Yumoto, Takashi Yokoya, Yutaka Ando, Akinobu Nishikata, Riki Fukuhara +1 more 2024-03-19
11640272 Image forming system that executes recovery process Kiyoharu Kakomura, Noriaki Matsui, Takashi Yokoya, Takuya Machida, Shun Motohashi +1 more 2023-05-02
11470213 Image forming apparatus Riki Fukuhara, Takashi Yokoya, Yutaka Ando, Akinobu Nishikata, Koji Yumoto +1 more 2022-10-11
11435685 Image forming apparatus Akinobu Nishikata, Takashi Yokoya, Yutaka Ando, Koji Yumoto, Riki Fukuhara +1 more 2022-09-06
10503111 Image forming apparatus for displaying a screen to prompt a user to re-attach a container having developing material Ryou Sakaguchi, Hiroyuki Eda 2019-12-10
10191430 Image forming apparatus Ryou Sakaguchi, Hiroyuki Eda 2019-01-29