YI

Yoshinori Ishikawa

HI Hitachi: 1 patents #961 of 2,733Top 40%
HS Hitachi-Lg Data Storage: 1 patents #28 of 75Top 40%
PA Panasonic: 1 patents #1,599 of 4,214Top 40%
Overall (2011): #56,565 of 364,097Top 20%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7983122 Defocus detection device, defocus detection method and optical disk unit using the same Motoyuki Suzuki 2011-07-19
7903384 Ground detection circuit for video signal driver to prevent large clamp transistor current Wee Siong LOW, Jun Tan 2011-03-08