Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |