YI

Yukio Iijima

Sumitomo Electric Industries: 2 patents #687 of 3,885Top 20%
Overall (2003): #34,832 of 273,478Top 15%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6643235 Optical disc recording and reproducing apparatus having automatic gate signal generation modes Nobuaki Minakuchi, Hidemi Takahashi, Yasushi Ueda, Makoto Okazaki 2003-11-04
6573763 Waveform generation apparatus and waveform generation method 2003-06-03