YS

Yasuo Sonoda

KP Kabushiki Kaisha Pilot: 2 patents #49 of 160Top 35%
Overall (All Time): #2,316,637 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5019164 Water-resistant ink composition Hajime Tomita 1991-05-28
5017224 Water-resistant ink composition Hajime Tomita 1991-05-21