MM

Matsuo Masuda

Sumitomo Electric Industries: 5 patents #5,365 of 21,551Top 25%
📍 Ooita, JP: #98 of 516 inventorsTop 20%
Overall (All Time): #1,038,580 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6677056 Method for producing tin-silver alloy plating film, the tin-silver alloy plating film and lead frame for electronic parts having the plating film Hisahiro Tanaka 2004-01-13
6646330 Lead frame for semiconductor device, process for producing the same and semiconductor device using the same Takashi Kubara, Hisahiro Tanaka, Tsuyoshi Tokiwa 2003-11-11
6575354 Method for producing tin-silver alloy plating film, the tin-silver alloy plating film and lead frame for electronic parts having the film Hisahiro Tanaka, Tsuyoshi Tokiwa 2003-06-10
6395583 Semiconductor device with a coating of Pb-free Sn-base solder and manufacturing method therefor Takashi Kubara, Tsuyoshi Tokiwa, Hisahiro Tanaka 2002-05-28
6087714 Semiconductor devices having tin-based solder film containing no lead and process for producing the devices Takashi Kubara, Tsuyoshi Tokiwa, Hisahiro Tanaka 2000-07-11