Inventor
IGARASHI TSUTOMU
JP48 patents
⚠️ This page may combine multiple inventors who share the name “IGARASHI TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OLYMPUS OPTICAL CO
19 patentsUS4976522ADec 11, 1990
Objective lens system for endoscopes
OLYMPUS OPTICAL CO158 citations99
US5933275AAug 3, 1999
Optical system for non-flexible endoscopes
OLYMPUS OPTICAL CO96 citations98
US5418649AMay 23, 1995
Objective lens system for endoscopes
OLYMPUS OPTICAL CO118 citations98
US6614595B2Sep 2, 2003
Stereo endoscope
OLYMPUS OPTICAL CO63 citations96
US6163401ADec 19, 2000
Optical system for non-flexible endoscopes
OLYMPUS OPTICAL CO72 citations96
US5954634ASep 21, 1999
Field conversion system for rigid endoscopes
OLYMPUS OPTICAL CO66 citations96
US5198931AMar 30, 1993
Objective optical system for endoscopes
OLYMPUS OPTICAL CO84 citations96
US5119238AJun 2, 1992
Objective lens system for endoscopes
OLYMPUS OPTICAL CO65 citations96
US5087989AFeb 11, 1992
Objective optical system for endoscopes
OLYMPUS OPTICAL CO93 citations96
US4952040AAug 28, 1990
Illumination optical system for an endoscope
OLYMPUS OPTICAL CO68 citations96
US4916534AApr 10, 1990
Endoscope
OLYMPUS OPTICAL CO91 citations95
US5852511ADec 22, 1998
Optical system for non-flexible endoscopes
OLYMPUS OPTICAL CO80 citations94
US6471642B1Oct 29, 2002
Rigid endoscope optical system
OLYMPUS OPTICAL CO36 citations93
US6402685B1Jun 11, 2002
Field conversion system for rigid endoscope
OLYMPUS OPTICAL CO20 citations93
US5902232AMay 11, 1999
Non-flexible endoscope having a slender insert section
OLYMPUS OPTICAL CO26 citations93
US5305147AApr 19, 1994
Eyepiece lens system for endoscopes
OLYMPUS OPTICAL CO40 citations93
US5177605AJan 5, 1993
Optical system for endoscopes and endoscopes using same
OLYMPUS OPTICAL CO50 citations92
US5632718AMay 27, 1997
Non-flexible endoscope with objective lens system and relay lens system
OLYMPUS OPTICAL CO24 citations91
US5083223AJan 21, 1992
Objective lens system for endoscopes
OLYMPUS OPTICAL CO21 citations82
OLYMPUS CORP
10 patentsUS6898022B2May 24, 2005
Stereo optical system pair for stereo endoscope system
OLYMPUS CORP22 citations93
US9804380B2Oct 31, 2017
Endoscope objective optical system
OLYMPUS CORP3 citations73
US9622652B2Apr 18, 2017
Endoscope objective optical system
OLYMPUS CORP2 citations73
US12213647B2Feb 4, 2025
Objective optical system, image pickup apparatus, and endoscope
OLYMPUS CORP0 citations63
US7678045B2Mar 16, 2010
Endoscope optical system
OLYMPUS CORP6 citations63
US11234580B2Feb 1, 2022
Endoscope illuminating optical system
OLYMPUS CORP0 citations52
US11119306B2Sep 14, 2021
Image pickup optical system, endoscope, and image pickup apparatus
OLYMPUS CORP0 citations52
US10782511B2Sep 22, 2020
Objective optical system, endoscope, and endoscope system
OLYMPUS CORP0 citations42
US10307044B2Jun 4, 2019
Endoscope illuminating optical system
OLYMPUS CORP0 citations42
US10356294B2Jul 16, 2019
Photographing device, moving body for photographing, and photographing control apparatus for moving body
OLYMPUS CORP0 citations36
OLYMPUS MEDICAL SYSTEMS CORP
4 patentsUS7466490B2Dec 16, 2008
Objective optical system for an endoscope
OLYMPUS MEDICAL SYSTEMS CORP74 citations98
US7738180B2Jun 15, 2010
Objective optical system for endoscopes
OLYMPUS MEDICAL SYSTEMS CORP18 citations84
US8715170B2May 6, 2014
Objective optical system for endoscope
OLYMPUS MEDICAL SYSTEMS CORP2 citations58
US8976468B2Mar 10, 2015
Endoscope objective optical system
OLYMPUS MEDICAL SYSTEMS CORP1 citations48
HISHIDA TAKESHI
3 patentsFUJITSU QUANTUM DEVICES LTD
2 patentsTOSHIBA MEDICAL SYS CORP
2 patentsUS7218106B2May 15, 2007
MRI with automatic contour-controlled separation between RF coil and object being imaged
TOSHIBA MEDICAL SYS CORP24 citations92
US9939508B2Apr 10, 2018
Medical image processing apparatus, magnetic resonance imaging apparatus, medical image processing method and magnetic resonance imaging method
TOSHIBA MEDICAL SYS CORP0 citations39