HH

Hiroichi Hase

YA Yasunaga: 3 patents #1 of 10Top 10%
Overall (All Time): #1,566,398 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7673388 Method of forming fracture start portion of ductile metal part and fracture start portion forming device 2010-03-09
7658003 Method and apparatus for removing fracture powder from fracture surfaces of a ductile metal part 2010-02-09
6571999 Connecting rod fracture machine and method for fracture separating connecting rod using the machine 2003-06-03