Inventor
TOYAMA AKIRA
JP39 patents
⚠️ This page may combine multiple inventors who share the name “TOYAMA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON PRECISION CIRCUITS
14 patentsUS5398029AMar 14, 1995
Sampling rate converter
NIPPON PRECISION CIRCUITS85 citations96
US6670854B2Dec 30, 2003
Fractional-N frequency synthesizer and method of operating the same
NIPPON PRECISION CIRCUITS41 citations93
US6292124B1Sep 18, 2001
Delta-sigma D/A converter
NIPPON PRECISION CIRCUITS23 citations92
US5523712AJun 4, 1996
Resistor array circuit device and variable gain device utilizing same
NIPPON PRECISION CIRCUITS41 citations92
US5727085AMar 10, 1998
Waveform data compression apparatus
NIPPON PRECISION CIRCUITS32 citations89
US6515601B2Feb 4, 2003
Noise shaper
NIPPON PRECISION CIRCUITS19 citations86
US5481267AJan 2, 1996
Sampling rate converter
NIPPON PRECISION CIRCUITS17 citations74
US4929947AMay 29, 1990
Constant width pulse distribution in a digital to analog converter for serial digital data
NIPPON PRECISION CIRCUITS11 citations74
US6369731B1Apr 9, 2002
Delta sigma D/A converter
NIPPON PRECISION CIRCUITS12 citations73
US6041291AMar 21, 2000
Digital data processing circuit and digital data processing method
NIPPON PRECISION CIRCUITS9 citations68
US5528531AJun 18, 1996
Serial-to-parallel multiplier
NIPPON PRECISION CIRCUITS3 citations63
US5659317AAug 19, 1997
Apparatus for reproducing digital audio waveform data
NIPPON PRECISION CIRCUITS2 citations62
US7496169B2Feb 24, 2009
Frequency synthesizer, pulse train generation apparatus and pulse train generation method
NIPPON PRECISION CIRCUITS2 citations60
US7069285B2Jun 27, 2006
Decimation filter
NIPPON PRECISION CIRCUITS1 citations52
YOKOGAWA ELECTRIC CORP
9 patentsUS5592659AJan 7, 1997
Timing signal generator
YOKOGAWA ELECTRIC CORP24 citations86
US7667544B2Feb 23, 2010
Clock reproducing apparatus
YOKOGAWA ELECTRIC CORP9 citations81
US5703515ADec 30, 1997
Timing generator for testing IC
YOKOGAWA ELECTRIC CORP13 citations74
US7245413B2Jul 17, 2007
Light modulation apparatus and light modulator control method
YOKOGAWA ELECTRIC CORP4 citations63
US7672033B2Mar 2, 2010
Light modulating apparatus
YOKOGAWA ELECTRIC CORP6 citations62
US7965800B2Jun 21, 2011
Clock recovery apparatus
YOKOGAWA ELECTRIC CORP2 citations61
US7243033B2Jul 10, 2007
Inspection apparatus
YOKOGAWA ELECTRIC CORP0 citations50
US7580641B2Aug 25, 2009
Repeater and optical communication system
YOKOGAWA ELECTRIC CORP1 citations49
US7522660B2Apr 21, 2009
Pulse pattern generating apparatus
YOKOGAWA ELECTRIC CORP0 citations37
SANKYO SEIKI SEISAKUSHO KK
3 patentsUS4399553AAug 16, 1983
Character reader
SANKYO SEIKI SEISAKUSHO KK58 citations96
US5679942AOct 21, 1997
Magnetic card reader using two multi channel magnetic heads that can read magnetic track data in two separate and distinct directions
SANKYO SEIKI SEISAKUSHO KK36 citations92
US4231072AOct 28, 1980
Record/playback device for magnetic recording
SANKYO SEIKI SEISAKUSHO KK7 citations74
KCEO INC
3 patentsUS6685565B2Feb 3, 2004
Video game device, character relationship level display method, and readable storage medium storing character relationship level display program
KCEO INC74 citations95
US6551188B2Apr 22, 2003
Video game device, new practice creating method and readable storage medium storing new practice creating program
KCEO INC104 citations95
US6719628B2Apr 13, 2004
Video game device, play result display method of video game, and readable recording medium where play result display method program is recorded
KCEO INC5 citations55