HT

Hajime Tsubono

EC Eagle Industry Co.: 1 patents #172 of 314Top 55%
KS Kobe Steel: 1 patents #937 of 1,773Top 55%
Overall (All Time): #3,306,908 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7819405 Mechanical seal Takao Ohama, Yasushi Amano, Kouji Akiyama, Hidekazu Takahashi 2010-10-26