TU

Takefumi Ura

Sumitomo Electric Industries: 2 patents #693 of 4,178Top 20%
Overall (2004): #38,747 of 270,089Top 15%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6816591 Voice switching system and voice switching method Yasuhiro Terada 2004-11-09
6674863 Microphone-speaker apparatus 2004-01-06