YK

Yuzuka Kumagai

SE Seiko Epson: 1 patents #5,551 of 7,774Top 75%
Overall (All Time): #2,442,992 of 4,157,543Top 60%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12378426 Ink jet ink composition Hisashi Okamura, Hidehiko Komatsu, Hiromi NOGUCHI, Yasuhiro Oki 2025-08-05