SN

Shozo Nakagawa

NK Nippon Hoso Kyokai: 2 patents #182 of 703Top 30%
AS Asaca: 1 patents #8 of 18Top 45%
AS Asaka: 1 patents #2 of 10Top 20%
NK Nippon Kogaku K.K.: 1 patents #221 of 382Top 60%
Overall (All Time): #1,296,232 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5210730 Tracking error detecting apparatus for use in multibeam optical disk device Akio Hayashi, Koichi Okabe 1993-05-11
4866546 Recording and reproducing apparatus for disk-type recording media Shunichi Ohnishi, Akihiro Takagi 1989-09-12
4809118 PCM helical-scan magnetic record/playback systems Katsuya Yokoyama, Hironobu Katayama 1989-02-28
4234898 Digital magnetic recording and reproducing apparatus Katsuya Yokoyama, Hironobu Katayama 1980-11-18