SY

Shin-ichi Yamada

Sumitomo Electric Industries: 1 patents #1,404 of 3,885Top 40%
Overall (2003): #118,273 of 273,478Top 45%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6567372 Optical disk and optical disk apparatus with tracks and grooves Kouichi Takamine, Takashi Ishida, Atsushi Nakamura, Seiji Nishiwaki 2003-05-20