Inventor
FURUKAWA KATSUHIRO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “FURUKAWA KATSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
10 patentsUS6603807B1Aug 5, 2003
Isolator and a modem device using the isolator
HITACHI LTD85 citations97
US6765959B1Jul 20, 2004
Communication method of contactless ID card and integrated circuit used in communication method
HITACHI LTD44 citations96
US6407432B1Jun 18, 2002
Semiconductor device
HITACHI LTD36 citations92
US5227795AJul 13, 1993
Over-sampling analog-to-digital converter using a current switching circuit as a local digital-to-analog converter
HITACHI LTD40 citations91
US6130577AOct 10, 2000
Digital demodulators for phase modulated and amplitude-phase modulated signals
HITACHI LTD51 citations89
US7289553B2Oct 30, 2007
Isolator and a modem device using the isolator
HITACHI LTD6 citations73
US5406218AApr 11, 1995
Phase demodulator receiving inputs from phase detector and binary phase detector
HITACHI LTD8 citations73
US7116709B2Oct 3, 2006
Communication method of contactless ID card and integrated circuit used in communication method
HITACHI LTD3 citations63
US7522692B2Apr 21, 2009
Isolator and a modem device using the isolator
HITACHI LTD4 citations62
US6476750B1Nov 5, 2002
Over-sampling A/D, D/A converter
HITACHI LTD0 citations52