Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KH

Kouji Hirotani

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #2,220,073 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6481616 Bump bonding device and bump bonding method Makoto Imanishi, Akihiro Yamamoto, Hiroyuki Otani, Shinzo Eguchi, Takahiro Yonezawa +2 more 2002-11-19
6328196 Bump bonding device and bump bonding method Makoto Imanishi, Akihiro Yamamoto, Hiroyuki Otani, Shinzo Eguchi, Takahiro Yonezawa +2 more 2001-12-11