YS

Yuko Shigeta

DC Dainippon Ink And Chemicals: 2 patents #241 of 1,002Top 25%
📍 Choshi, JP: #29 of 66 inventorsTop 45%
Overall (All Time): #2,338,475 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4767844 Azo lake pigments Hirohito Ando, Zenji Takada, Shigeto Aoki 1988-08-30
4711674 Non-bronzing reddish lake pigment Hirohito Ando, Zenji Takada 1987-12-08