YK

Yoshio Kita

OC Orient Chemical Industries Co.: 2 patents #46 of 105Top 45%
Overall (All Time): #2,139,380 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7598010 Triarylamine dimer derivative having amorphous phase Yasuhiro Yamasaki 2009-10-06
6811940 Mixed substance of triphenylamine dimers Yasuhiro Yamasaki 2004-11-02