Inventor
IKETANI KOHEI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “IKETANI KOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
16 patentsUS7725013B2May 25, 2010
Electronic endoscope with brightness adjustment function
HOYA CORP69 citations98
US7766818B2Aug 3, 2010
Electronic endoscope system
HOYA CORP83 citations97
US8007433B2Aug 30, 2011
Electronic endoscope
HOYA CORP35 citations92
US7857751B2Dec 28, 2010
Electronic endoscope system including image synthesizing processor
HOYA CORP7 citations73
US11759096B2Sep 19, 2023
Endoscope
HOYA CORP3 citations71
US7877135B2Jan 25, 2011
Image data processor, computer program product, and electronic endoscope system
HOYA CORP4 citations62
US11229350B2Jan 25, 2022
Endoscope with bendable insertion unit
HOYA CORP0 citations60
US12527462B2Jan 20, 2026
Endoscope and endoscope system
HOYA CORP0 citations54
US11937767B2Mar 26, 2024
Endoscope
HOYA CORP0 citations52
US11986163B2May 21, 2024
Endoscope and endoscope system controlled by pair of cable bundles
HOYA CORP0 citations50
US11937785B2Mar 26, 2024
Endoscope, distal tip piece, and method of manufacturing endoscope
HOYA CORP0 citations50
US11562822B2Jan 24, 2023
Information processing method, information processing device, and information processing system
HOYA CORP0 citations50
US10806330B2Oct 20, 2020
Single use endoscope device
HOYA CORP0 citations50
US12198258B2Jan 14, 2025
Processor for endoscope, program, information processing method, and information processing device
HOYA CORP0 citations45
US12419503B2Sep 23, 2025
Endoscope system having a three-dimensional expansion processor
HOYA CORP0 citations43
US12112484B2Oct 8, 2024
Method for generating learning model and program
HOYA CORP0 citations41
ASAHI OPTICAL CO LTD
12 patentsUS6215517B1Apr 10, 2001
Electronic endoscope system
ASAHI OPTICAL CO LTD154 citations99
US6080104AJun 27, 2000
Electronic endoscope system
ASAHI OPTICAL CO LTD157 citations99
US5708482AJan 13, 1998
Image-signal clamping circuit for electronic endoscope
ASAHI OPTICAL CO LTD68 citations96
US6246432B1Jun 12, 2001
Video signal switching device for endoscope system
ASAHI OPTICAL CO LTD34 citations93
US6181368B1Jan 30, 2001
Electronic endoscope
ASAHI OPTICAL CO LTD29 citations93
US5929899AJul 27, 1999
Electronic endoscope which stores image signals of the three primary colors supplied in a field-sequential system into a single memory using a point-sequential system
ASAHI OPTICAL CO LTD26 citations93
US5902230AMay 11, 1999
Electronic endoscope system with information combined in digital output
ASAHI OPTICAL CO LTD31 citations93
US5136674AAug 4, 1992
Light admitting device
ASAHI OPTICAL CO LTD22 citations93
US5323100AJun 21, 1994
Power supply device
ASAHI OPTICAL CO LTD26 citations92
US4558367ADec 10, 1985
Automatic focusing device for video camera
ASAHI OPTICAL CO LTD22 citations81
US4920307AApr 24, 1990
Electric power source used to charge a secondary power source
ASAHI OPTICAL CO LTD14 citations74
US4903136AFeb 20, 1990
Automatic sensitivity controller for electronic still camera
ASAHI OPTICAL CO LTD15 citations74
PENTAX CORP
7 patentsUS7248296B2Jul 24, 2007
Automatic gain control device for electronic endoscope
PENTAX CORP67 citations98
US6545703B1Apr 8, 2003
Electronic endoscope
PENTAX CORP127 citations98
US6858004B1Feb 22, 2005
Electronic endoscope system including a plurality of video-processors
PENTAX CORP56 citations96
US6697101B1Feb 24, 2004
Electronic endoscope
PENTAX CORP67 citations96
US6686949B2Feb 3, 2004
Electronic endoscope system
PENTAX CORP58 citations96
US6945928B2Sep 20, 2005
Electronic endoscope system
PENTAX CORP13 citations84
US7333189B2Feb 19, 2008
Spectroscopic diagnostic methods and system
PENTAX CORP12 citations83