RO

Riichi Ogawara

MC Mitsui Mining & Smelting Co.: 2 patents #281 of 838Top 35%
Overall (All Time): #2,004,133 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9312454 Sulfur-containing phosphor coated with ZnO compound Jun Itoh, Asuka Sasakura, Masaaki Inamura, Akinori Kumagai 2016-04-12
8147717 Green emitting phosphor Asuka Sasakura, Jun Itoh, Taizou Morinaka 2012-04-03