Inventor
AIZAWA IWAO
JP31 patents
⚠️ This page may combine multiple inventors who share the name “AIZAWA IWAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
29 patentsUS5903706AMay 11, 1999
Imager apparatus with rotatable camera head
HITACHI LTD245 citations99
US6345263B1Feb 5, 2002
Electronic purse application system and method thereof
HITACHI LTD112 citations98
US5808672ASep 15, 1998
Apparatus for removably mounting an electronic camera to a computer system
HITACHI LTD130 citations98
US6677989B1Jan 13, 2004
Imaging and recording apparatus
HITACHI LTD47 citations96
US5539535AJul 23, 1996
Portable electronic still camera recording optical images of subjects in a memory which facilitates memory access from an external request
HITACHI LTD38 citations96
US6282293B1Aug 28, 2001
System and method for charging fee for video information
HITACHI LTD27 citations93
US6167467ADec 26, 2000
Information reception and recording circuit
HITACHI LTD23 citations93
US6081350AJun 27, 2000
Imaging and recording apparatus
HITACHI LTD24 citations92
US5748238AMay 5, 1998
Video camera
HITACHI LTD30 citations92
US4835617AMay 30, 1989
Image pickup device for television cameras having a shutter function for a photodiode matrix operated using MOS switches
HITACHI LTD37 citations92
US7346579B2Mar 18, 2008
Electronic purse application system and method thereof
HITACHI LTD9 citations84
US5801847ASep 1, 1998
Imaging and recording apparatus
HITACHI LTD10 citations82
US5793517AAug 11, 1998
Imaging and recording apparatus
HITACHI LTD11 citations82
US5790274AAug 4, 1998
Imaging and recording apparatus
HITACHI LTD12 citations82
US6205286B1Mar 20, 2001
Image pickup apparatus having image information compressing function
HITACHI LTD10 citations74
US5938741AAug 17, 1999
Information transmission/reception system for transmitting information to requesters, where it is recorded, in response to a plurality of requests
HITACHI LTD12 citations74
US5699173ADec 16, 1997
Portable electronic still camera recording optical images of subjects in a memory which facilitates memory access from an external request
HITACHI LTD9 citations74
US5664220ASep 2, 1997
Information transmission/reception system for transmitting information to requesters, where it is recorded, in response to a plurality of requests
HITACHI LTD12 citations74
US4745480AMay 17, 1988
Solid-state image pick-up device having an arrangement to avoid adverse effects on the waveform of picture elements signal by the read-out start pulse
HITACHI LTD8 citations74
US4698601AOct 6, 1987
Phase locked loop
HITACHI LTD13 citations74
US4517587AMay 14, 1985
Synchronizing signal generating circuit for solid-state color video camera
HITACHI LTD17 citations74
US5565919AOct 15, 1996
Video camera/VTR and camera station with opto-electronic link between camera/VTR and camera station
HITACHI LTD13 citations73
US5170253ADec 8, 1992
Subtitling apparatus with memory control codes interspersed with graphic data
HITACHI LTD9 citations73
US5432650AJul 11, 1995
Magnetic tape recording/reproducing apparatus having automatic mode control
HITACHI LTD11 citations72
US5121265AJun 9, 1992
Magnetic recording and reproducing apparatus
HITACHI LTD14 citations70
US4044381AAug 23, 1977
Automatic waveform equalizing system for television receiver
HITACHI LTD18 citations67
US7304669B2Dec 4, 2007
Imaging and recording apparatus
HITACHI LTD2 citations63
US5528433AJun 18, 1996
Wide picture video recording/reproducing system
HITACHI LTD3 citations63
US5351154ASep 27, 1994
Magnetic recording and reproducing apparatus
HITACHI LTD4 citations63