TS

Toshihiko SUGIYAMA

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
Overall (All Time): #1,722,375 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12346062 Toner, toner storage unit, image forming apparatus and method of forming image Junichi Watanabe, Yuka Mizoguchi, Hiroshi Yamashita, Kazuoki Fuwa, Tsuneyasu Nagatomo 2025-07-01
11687013 Toner for electrostatic charge image development, toner stored unit, image forming apparatus, and image forming method Minoru Masuda, Yuka Mizoguchi, Hideki Sugiura 2023-06-27