TI

Takahiko Irimajiri

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #4,042,870 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4478309 Speaker equipped with diaphragm filled with foamed resin Shinichiro Kawamura 1984-10-23