HN

Hiroki Nakagawa

Sumitomo Electric Industries: 2 patents #687 of 3,885Top 20%
📍 Okayama, JP: #8 of 134 inventorsTop 6%
Overall (2003): #64,393 of 273,478Top 25%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6600272 Bulb-shaped fluorescent lamp Nobuyuki Matsui, Tetsuya Tahara 2003-07-29
6552497 Light bulb type fluorescent lamp lighting apparatus Tetsuya Tahara 2003-04-22