SM

Shoji Marukawa

Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
Overall (All Time): #877,508 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6934099 Digital data reproducing apparatus Yoshimasa Oda 2005-08-23
6836511 Apparatus for processing a reproduced digital signal 2004-12-28
6834035 Digital reproduced signal processing device Shinichiro Sato, Toshinori Okamoto, Yoshimasa Oda 2004-12-21
6741533 Tracking error detection device Takashige Hiratsuka, Toshinori Okamoto 2004-05-25
6687841 Wide frequency range PLL clock generating circuit with delta sigma modulating circuitry for reducing the time changing ratio of the input voltage of a voltage controlled oscillator 2004-02-03
6291962 Offset control circuit and offset control method Yoichi Ogura 2001-09-18