KK

Kyosuke Kai

SH Sumitomo Electric Hardmetal: 1 patents #48 of 90Top 55%
SN Sumitomo Electric Tool Net: 1 patents #7 of 9Top 80%
Overall (2021): #366,716 of 548,734Top 70%
1
Patents 2021

Issued Patents 2021

Patent #TitleCo-InventorsDate
11198187 Oil hole reamer Jun Okamoto, Futoshi Takeshita, Katsutoshi Fukuda, Masashi YAMADA 2021-12-14