Inventor
FUJITA TAKEHIRO
JP55 patents
⚠️ This page may combine multiple inventors who share the name “FUJITA TAKEHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
20 patentsUS6750903B1Jun 15, 2004
Super high resolution camera
HITACHI LTD252 citations99
US6741977B1May 25, 2004
Image recording/reproducing apparatus in monitor system
HITACHI LTD309 citations99
US5945976AAug 31, 1999
Graphic data processing system
HITACHI LTD150 citations99
US5602564AFeb 11, 1997
Graphic data processing system
HITACHI LTD131 citations99
US5721692AFeb 24, 1998
Moving object detection apparatus
HITACHI LTD104 citations98
US5377319ADec 27, 1994
Help guidance method utilizing an animated picture
HITACHI LTD167 citations98
US6600874B1Jul 29, 2003
Method and device for detecting starting and ending points of sound segment in video
HITACHI LTD66 citations96
US6321024B1Nov 20, 2001
Control method for detecting change points in motion picture images and for stopping reproduction thereof and control system for monitoring picture images utilizing the same
HITACHI LTD64 citations96
US6157744ADec 5, 2000
Method and apparatus for detecting a point of change in a moving image
HITACHI LTD83 citations96
US5974219AOct 26, 1999
Control method for detecting change points in motion picture images and for stopping reproduction thereof and control system for monitoring picture images utilizing the same
HITACHI LTD78 citations96
US5544052AAug 6, 1996
Digital cartographic system for geographical information processing
HITACHI LTD76 citations95
US6256419B1Jul 3, 2001
Method and apparatus for detecting a point of change in a moving image
HITACHI LTD22 citations93
US6023520AFeb 8, 2000
Method and apparatus for detecting and displaying a representative image of a shot of short duration in a moving image
HITACHI LTD36 citations93
US5862508AJan 19, 1999
Moving object detection apparatus
HITACHI LTD37 citations92
US6005493ADec 21, 1999
Method of displaying moving object for enabling identification of its moving route display system using the same, and program recording medium therefor
HITACHI LTD39 citations91
US6341168B1Jan 22, 2002
Method and apparatus for detecting and displaying a representative image of a shot of short duration in a moving image
HITACHI LTD14 citations84
US6925245B1Aug 2, 2005
Method and medium for recording video information
HITACHI LTD16 citations81
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
US6191707B1Feb 20, 2001
Method of displaying moving object for enabling identification of its moving route, display system using the same, and program recording medium therefor
HITACHI LTD6 citations72
FUJITSU LTD
14 patentsUS7627244B2Dec 1, 2009
Optical transmission apparatus, continuity testing method therein, and optical transmission system
FUJITSU LTD11 citations84
US7248804B2Jul 24, 2007
Optical transmission device using a wide input dynamic range optical amplifier
FUJITSU LTD10 citations84
US7139347B2Nov 21, 2006
Parallel signal automatic phase adjusting circuit
FUJITSU LTD19 citations84
US7619813B2Nov 17, 2009
Wavelength division multiplexing device, an optical leakage prevention method, and a wavelength division multiplexing communication system
FUJITSU LTD10 citations83
US7522839B2Apr 21, 2009
Method of upgrading optical node, and an optical node apparatus
FUJITSU LTD8 citations83
US10541749B2Jan 21, 2020
Optical wavelength multiplexing transmission apparatus and optical wavelength multiplexing transmission method
FUJITSU LTD5 citations72
US7689131B2Mar 30, 2010
WDM system
FUJITSU LTD5 citations62
US9287992B2Mar 15, 2016
Wavelength division multiplexing transmission device
FUJITSU LTD2 citations61
US7650072B2Jan 19, 2010
Method of upgrading optical node, and an optical node apparatus
FUJITSU LTD4 citations61
US7489876B2Feb 10, 2009
Optical transmission system having noise-elimination function
FUJITSU LTD5 citations60
US7391560B2Jun 24, 2008
Multistage optical amplifier having tilt compensation feature
FUJITSU LTD4 citations60
US12334979B2Jun 17, 2025
Optical wavelength multiplexing transmission device and optical wavelength multiplexing transmission method
FUJITSU LTD0 citations52
US9647793B2May 9, 2017
Measuring device, measurement method, and transmission system
FUJITSU LTD1 citations52
US7313327B2Dec 25, 2007
Switching control device for wavelength-division multiplexing optical signal
FUJITSU LTD0 citations52
MAXELL LTD
4 patentsUS11546627B2Jan 3, 2023
Moving picture decoding method and moving picture encoding method
MAXELL LTD0 citations63
US11134263B2Sep 28, 2021
Moving picture decoding method and moving picture encoding method
MAXELL LTD0 citations63
US10764599B2Sep 1, 2020
Moving picture decoding method and moving picture encoding method
MAXELL LTD0 citations52
US10382775B2Aug 13, 2019
Moving picture decoding method and moving picture encoding method
MAXELL LTD0 citations52
SUGAYA YASUSHI
2 patentsZANAVY INFORMATICS KK
1 patentGOTO RYOSUKE
1 patentSUZUKI TOMOYUKI
1 patentKOBAYASHI HIDEKI
1 patentHITACHI HIGH TECH CORP
1 patentARAI DAISUKE
1 patentIDEMITSU KOSAN CO
1 patentHITACHI MAXELL
1 patentTAKAHASHI MASASHI
1 patentFUJITA TAKEHIRO
1 patentShowing the top 50 of 55 patents by PatentIndex Score.