TO

Tatsuya OHHIRA

Ricoh Company: 7 patents #2,977 of 9,818Top 35%
Overall (All Time): #713,705 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11163246 Developing device including a conveyor with a space between blades and image forming apparatus including same Koichi Yamazaki, Yuki Oshikawa, Takahiro Adachi 2021-11-02
11048189 Toner container, toner supply device, and image forming apparatus including a sheet member with two portions to move toner Takahiro Adachi, Koichi Yamazaki, Hideo Yoshizawa 2021-06-29
10895827 Developer conveyor having three blades Koichi Yamazaki, Hideo Yoshizawa, Takahiro Adachi 2021-01-19
10209645 Vertical biaxial developing device and image forming apparatus and process cartridge incorporating same Yuuki Tsuchiya, Masayuki Yamane, Keiichi Yoshida, Atsushi Kurokawa, Toshiki Hayashi 2019-02-19
10168642 Developing device and image forming apparatus and process cartridge incorporating same Masayuki Yamane, Keiichi Yoshida, Atsushi Kurokawa, Toshiki Hayashi, Yuuki Tsuchiya 2019-01-01
10114334 Developing device with casing having upper and lower compartments Masayuki Yamane, Keiichi Yoshida, Atsushi Kurokawa, Toshiki Hayashi, Yuuki Tsuchiya 2018-10-30
9864297 Developing device and image forming apparatus and process cartridge incorporating same Atsushi Kurokawa, Masayuki Yamane, Keiichi Yoshida, Toshiki Hayashi, Shunji Katoh 2018-01-09