SM

Shuhei Marukawa

Sumitomo Electric Industries: 13 patents #1,957 of 21,551Top 10%
PA Panasonic: 13 patents #1,866 of 21,108Top 9%
TO Toyota: 8 patents #3,629 of 26,838Top 15%
📍 Moriguchi, JP: #3 of 4 inventorsTop 75%
Overall (All Time): #155,552 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
5800942 Storage battery with ventilation system Shinji Hamada, Hiroshi Inoue, Munehisa Ikoma 1998-09-01