YI

Yuji Ieiri

Ricoh Company: 12 patents #1,888 of 9,818Top 20%
Overall (All Time): #398,585 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
12353161 Image forming apparatus, fault sensing method, and non-transitory computer-readable recording medium storing fault sensing program Shunta Yamahori, Yuuji Matsuda, Hiroshi Okamura, Tomohide Kondoh 2025-07-08
12105440 Image forming apparatus, image forming method, and non-transitory recording medium Yuuji Matsuda, Sumihiro Inokuchi, Hiroshi Okamura, Tomohide Kondoh 2024-10-01
11126111 Toner amount detector, toner amount detection method, and non-transitory storage medium storing program Yuusuke Tomura, Masashi Hommi, Tetsuya Hara, Yuki Osato, Takumi Miyagawa 2021-09-21
10996606 Remaining toner amount detecting apparatus, image forming apparatus, and remaining toner amount detecting method 2021-05-04
10859973 Image forming apparatus, image forming method, and recording medium Masashi Hommi, Tetsuya Hara, Takumi Miyagawa 2020-12-08
10775729 Remaining toner amount detecting apparatus, remaining toner amount detecting method, and recording medium Tetsuya Hara, Masashi Hommi, Takumi Miyagawa 2020-09-15
9162443 Ink jet recording device and short circuit protection method for ink jet recording device 2015-10-20
9054545 Power supply control device and image forming apparatus 2015-06-09
8814302 Defective nozzle detector and image forming apparatus and system 2014-08-26
8764143 Image forming apparatus and drive-voltage generating circuit 2014-07-01
7819492 Image processing apparatus, image processing method and computer-readable recording medium of image processing method Jun Watanabe, Kohichi Sadano, Tsuyoshi Yamada 2010-10-26
7789475 Image forming apparatus Takashi Morishita, Yoshimitsu Ogura, Kenji Kagami, Jun Watanabe, Tomokazu Tsuchiya +1 more 2010-09-07