YK

Yuhki Kinpara

SC Sumitomo Osaka Cement Co.: 3 patents #3 of 43Top 7%
Overall (2011): #31,155 of 364,097Top 9%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7925123 Optical control device Satoshi Oikawa, Junichiro Ichikawa 2011-04-12
7912326 Optical control device Satoshi Oikawa, Junichiro Ichikawa, Yuji Yamane 2011-03-22
7873244 Light control device Junichiro Ichikawa, Satoshi Oikawa 2011-01-18