SM

Sadamu Matsumoto

Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
📍 Itami, JP: #606 of 1,436 inventorsTop 45%
Overall (All Time): #1,170,744 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10760028 Oil tempered wires Takafumi Uwano, Takayuki Shiwaku 2020-09-01
6478897 Heat-resistant alloy wire Hiromu Izumida, Nozomu Kawabe, Norihito Yamao, Teruyuki Murai 2002-11-12
5904787 Oil-tempered wire and method of manufacturing the same Teruyuki Murai, Takashi Yoshioka 1999-05-18
5683521 Method for manufacturing spring having high nitrided properties Teruyuki Murai 1997-11-04