Inventor
NAGAYA SHIGEKI
JP22 patents
⚠️ This page may combine multiple inventors who share the name “NAGAYA SHIGEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS6741977B1May 25, 2004
Image recording/reproducing apparatus in monitor system
HITACHI LTD309 citations99
US5721692AFeb 24, 1998
Moving object detection apparatus
HITACHI LTD104 citations98
US6157744ADec 5, 2000
Method and apparatus for detecting a point of change in a moving image
HITACHI LTD83 citations96
US6256419B1Jul 3, 2001
Method and apparatus for detecting a point of change in a moving image
HITACHI LTD22 citations93
US7447332B2Nov 4, 2008
Image distribution system of surveillance camera with privacy protection
HITACHI LTD27 citations92
US7379628B2May 27, 2008
Recording and reproducing system for image data with recording position information and a recording and reproducing method therefor
HITACHI LTD20 citations92
US5862508AJan 19, 1999
Moving object detection apparatus
HITACHI LTD37 citations92
US7862172B2Jan 4, 2011
Gaze direction measuring method and gaze direction measuring device
HITACHI LTD20 citations87
US7835543B2Nov 16, 2010
Object detection method
HITACHI LTD17 citations83
US7834912B2Nov 16, 2010
Attention level measuring apparatus and an attention level measuring system
HITACHI LTD17 citations83
US6925245B1Aug 2, 2005
Method and medium for recording video information
HITACHI LTD16 citations81
US7830369B2Nov 9, 2010
Video signal processing apparatus, video displaying apparatus and high resolution method for video signal
HITACHI LTD7 citations74
US6798909B2Sep 28, 2004
Surveillance apparatus and recording medium recorded surveillance program
HITACHI LTD10 citations74
US6798908B2Sep 28, 2004
Surveillance apparatus and recording medium recorded surveillance program
HITACHI LTD11 citations74