KO

Kazuhiro Ota

Sumitomo Electric Industries: 1 patents #1,404 of 3,885Top 40%
📍 Nagano, JP: #13 of 23 inventorsTop 60%
Overall (2003): #58,026 of 273,478Top 25%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6620549 Alkaline storage battery Tetsuo Nanno, Hiromu Matsuda 2003-09-16
6561597 Electromagnetically driving part 2003-05-13