TK

Tsutaru KUMAGAI

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #1,789,236 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12158619 Optical fiber connection component and optical fiber connection structure Tetsuya Nakanishi, Hajime Arao 2024-12-03
11782222 Optical fiber connection component and optical fiber connection structure Tetsuya Nakanishi, Hajime Arao 2023-10-10