SO

Shuichi Obata

Sumitomo Electric Industries: 10 patents #2,734 of 21,551Top 15%
Overall (All Time): #528,344 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
5073946 Thin speaker having an enclosure with an open portion and a closed portion Katsuaki Satoh, Kazue Sato, Kousaku Murata, Tsuneo Tanaka, Shuji Saiki +6 more 1991-12-17
5025474 Speaker system with image projection screen Tsuneo Tanaka, Kazue Sato, Hiroyuki Takewa, Akira Kurozuka, Tadashi Tamura +6 more 1991-06-18
4924962 Sound reproducing apparatus for use in vehicle Kenichi Terai, Shuji Saiki, Kousaku Murata, Katsuaki Satoh, Yoichi Kumura +2 more 1990-05-15
4899390 Thin speaker having an enclosure within an open portion and a closed portion Hiroyuki Takewa, Mitsuhiko Serikawa, Seiichi Ishikawa, Sawako Usuki, Yoichi Kimura 1990-02-06
4330884 Pickup arm device Hiroshi Yasuda, Yukihiro Fukushima 1982-05-18
4302692 Rotational speed signal sensor Hisayuki Matsumoto, Uneho Niimi 1981-11-24
D261882 Record player Takamichi Nakagawa 1981-11-17
4276635 Pickup cartridge and mounting device therefor Masashi Ito 1981-06-30
4263483 Moving coil pick-up assembly for use in a record player 1981-04-21
4203606 Pickup arm device Takayuki Sugihara 1980-05-20