TK

Taku Kumiya

Ricoh Company: 4 patents #4,167 of 9,818Top 45%
Overall (All Time): #1,112,463 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12050414 Developing device including filter detachable holder, process cartridge, and image forming apparatus Yusuke Chiba, Takuya Suganuma, Kazuki Yogosawa, Hotaru HASHIKAWA 2024-07-30
10599064 Powder-amount detection device and image forming apparatus incorporating same Masahide Yamashita, Yohei Kushida, Takuya Murata, Keita Maejima 2020-03-24
10429770 Powder-amount detection device and image forming apparatus incorporating same Masahide Yamashita, Yohei Kushida, Takuya Murata, Keita Maejima 2019-10-01
10365601 Image forming apparatus and image forming method Keita Sone, Akira Yoshida, Natsumi Matsue, Kazuaki Kamihara, Yuuichiroh Uematsu +1 more 2019-07-30