YK

Yoji Kawakami

NS Nippon Steel: 3 patents #914 of 4,423Top 25%
Overall (All Time): #1,631,493 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5857610 Process and apparatus for forming ball bumps Hiroshi Hoshiba, Kohei Tatsumi, Masashi Konda 1999-01-12
5803339 Process and apparatus for forming ball bumps Hiroshi Hoshiba, Kohei Tatsumi, Masashi Konda 1998-09-08
5687901 Process and apparatus for forming ball bumps Hiroshi Hoshiba, Kohei Tatsumi, Masashi Konda 1997-11-18