HT

Hiroyuki Takewa

Sumitomo Electric Industries: 1 patents #327 of 1,127Top 30%
Overall (1989): #103,932 of 140,708Top 75%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4803242 Diaphragm for loudspeakers Kousaku Murata, Satoshi Takayama, Shuji Saiki, Tsuneo Tanaka 1989-02-07