CW

Chanthan Winh

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #2,111,480 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8009987 Optical add/drop multiplexer Yasuhiro Uchiyama, Yukio Hayashi 2011-08-30
7844177 Optical signal changeover device and optical signal changeover method Yukio Hayashi 2010-11-30