TH

Tsuguyoshi Hirooka

HI Hitachi: 7 patents #5,859 of 28,497Top 25%
Overall (All Time): #757,358 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6700721 Magnetic recording and reproducing apparatus and semiconductor integrated circuit for use in the same comprising a read/write signal processor having an interleave write data generator Eisaku Saiki, Shintaro Suzumura, Terumi Takashi, Kazutoshi Ashikawa, Shoichi Miyazawa +1 more 2004-03-02
6452736 Magnetic recording and reproducing apparatus and a read/write amplifier having a signal transmission system with high speed of data write signal Eisaku Saiki, Shintaro Suzumura, Terumi Takashi, Kazutoshi Ashikawa, Shoichi Miyazawa +1 more 2002-09-17
5937020 Digital information signal reproducing circuit and digital information system Kenichi Hase, Ryutaro Horita, Haruto Katsu, Takashi Nara, Shoichi Miyazawa +1 more 1999-08-10
5872666 Decoder circuitry with PRML signal processing for reproducing apparatus Eisaku Saiki, Kazutosi Ashikawa, Seiichi Mita, Shintaro Suzumura, Shoichi Miyazawa 1999-02-16
5867333 Data recording and reproducing apparatus and phase locked loop circuit for use therein including D/A converters acting as charge pumps and a reference voltage source Eisaku Saiki, Shintaro Suzumura, Kazutoshi Ashikawa, Seiichi Mita 1999-02-02
5745066 AD converter and magnetic recording/regenerating apparatus using thereof Shoichi Miyazawa, Ryutaro Horita, Terumi Takashi, Akira Uragami 1998-04-28
5557274 Ad converter and magnetic recording/regenerating apparatus using the same Shoichi Miyazawa, Ryutaro Horita, Terumi Takashi, Akira Uragami 1996-09-17