HF

Hajime Fukazawa

RC Rion Co.: 2 patents #29 of 139Top 25%
Overall (All Time): #2,177,514 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6858274 Synthetic corundum cell — 2005-02-22
6440242 Method of joining synthetic corundum, method of manufacturing synthetic corundum cell, and synthetic corundum cell — 2002-08-27