GY

Goh Yoshiyama

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #1,984,497 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9687893 Manufacturing method of martensite-based stainless steel for edged tools — 2017-06-27
7531052 Steel strip for razor blades and method of manufacturing the same — 2009-05-12