SS

Sadaaki Sakurai

SO Sony: 3 patents #10,744 of 25,231Top 45%
FC Furukawa Electric Co.: 1 patents #1,242 of 2,370Top 55%
Overall (All Time): #1,256,324 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7283636 Planar speaker Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa, Shigeo Yamaguchi, Tsutomu Yokoyama +3 more 2007-10-16
4281223 Electro-acoustic transducer Masana Ugaji, Hideo Suyama, Shigenori Yamaoka, Toshinaga Endo, Akinobu Kusuhara 1981-07-28
4275278 Diaphragm for a loudspeaker Mitsuru Takashima, Masana Ugaji 1981-06-23
4210778 Loudspeaker system with heat pipe Hisashi Suwa 1980-07-01