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Yoshitaka Yamada

KO Konica: 1 patents #32 of 147Top 25%
KC Konishiroku Photo Industry Co.: 1 patents #57 of 231Top 25%
Overall (1989): #12,230 of 140,708Top 9%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4833069 Silver halide color photographic light-sensitive material comprising a specified cyan coupler combination and total film thickness Fumio Hamada, Kiyotoshi Yamashita 1989-05-23
4804619 Silver halide color photographic light-sensitive material Masao Iwamura 1989-02-14