Inventor · disambiguated record
Tsutomu Igarashi
Also filed as: IGARASHI TSUTOMU
48 granted patents·5 pending applications·1,712 citations·filing 1984–2023
98Inventor score
Files withOLYMPUS OPTICAL CO19OLYMPUS CORP10OLYMPUS MEDICAL SYSTEMS CORP5HISHIDA TAKESHI3FUJITSU QUANTUM DEVICES LTD2
Top patents by PatentIndex Score
53 records- 0197US7466490B2Objective optical system for an endoscopeOLYMPUS MEDICAL SYSTEMS CORP·Filed 2007·Granted Dec 16, 2008·74 cites·19 claims
- 0297US4976522AObjective lens system for endoscopesOLYMPUS OPTICAL CO·Filed 1989·Granted Dec 11, 1990·158 cites·14 claims
- 0393US6614595B2Stereo endoscopeOLYMPUS OPTICAL CO·Filed 2001·Granted Sep 2, 2003·63 cites·9 claims
- 0493US5418649AObjective lens system for endoscopesOLYMPUS OPTICAL CO·Filed 1993·Granted May 23, 1995·118 cites·8 claims
- 0593US5338211AConnector cover structureYAZAKI CORP·Filed 1992·Granted Aug 16, 1994·88 cites·4 claims
- 0692US4916534AEndoscopeOLYMPUS OPTICAL CO·Filed 1988·Granted Apr 10, 1990·91 cites·20 claims
- 0791US5933275AOptical system for non-flexible endoscopesOLYMPUS OPTICAL CO·Filed 1996·Granted Aug 3, 1999·96 cites·18 claims
- 0889US5198931AObjective optical system for endoscopesOLYMPUS OPTICAL CO·Filed 1991·Granted Mar 30, 1993·84 cites·7 claims
- 0989US5087989AObjective optical system for endoscopesOLYMPUS OPTICAL CO·Filed 1990·Granted Feb 11, 1992·93 cites·10 claims
- 1089US4952040AIllumination optical system for an endoscopeOLYMPUS OPTICAL CO·Filed 1989·Granted Aug 28, 1990·68 cites·19 claims
- 1188US7738180B2Objective optical system for endoscopesOLYMPUS MEDICAL SYSTEMS CORP·Filed 2009·Granted Jun 15, 2010·18 cites·18 claims
- 1288US6163401AOptical system for non-flexible endoscopesOLYMPUS OPTICAL CO·Filed 1999·Granted Dec 19, 2000·72 cites·9 claims
- 1387US6471642B1Rigid endoscope optical systemOLYMPUS OPTICAL CO·Filed 2000·Granted Oct 29, 2002·36 cites·14 claims
- 1485US5852511AOptical system for non-flexible endoscopesOLYMPUS OPTICAL CO·Filed 1996·Granted Dec 22, 1998·80 cites·12 claims
- 1585US5119238AObjective lens system for endoscopesOLYMPUS OPTICAL CO·Filed 1990·Granted Jun 2, 1992·65 cites·14 claims
- 1684US6274893B1Compound semiconductor device and method of manufacturing the sameFUJITSU QUANTUM DEVICES LTD·Filed 1999·Granted Aug 14, 2001·60 cites·18 claims
- 1782US4669340ASlip-joint pliersIGARASHI PLIER CO LTD·Filed 1986·Granted Jun 2, 1987·40 cites·2 claims
- 1880US7218106B2MRI with automatic contour-controlled separation between RF coil and object being imagedTOSHIBA MEDICAL SYS CORP·Filed 2004·Granted May 15, 2007·24 cites·39 claims
- 1980US5177605AOptical system for endoscopes and endoscopes using sameOLYMPUS OPTICAL CO·Filed 1992·Granted Jan 5, 1993·50 cites·9 claims
- 2080US4719827ATongue-and-groove pliersIGARASHI PLIER CO LTD·Filed 1986·Granted Jan 19, 1988·36 cites·1 claims
- 2179US9804380B2Endoscope objective optical systemOLYMPUS CORP·Filed 2017·Granted Oct 31, 2017·3 cites·7 claims
- 2274US9622652B2Endoscope objective optical systemOLYMPUS CORP·Filed 2015·Granted Apr 18, 2017·2 cites·1 claims
- 2374US5305147AEyepiece lens system for endoscopesOLYMPUS OPTICAL CO·Filed 1991·Granted Apr 19, 1994·40 cites·14 claims
- 2471US6395588B2Compound semiconductor device and method of manufacturing the sameFUJITSU QUANTUM DEVICES LTD·Filed 2001·Granted May 28, 2002·16 cites·4 claims
- 2569US8461667B2Semiconductor deviceHISHIDA TAKESHI·Filed 2010·Granted Jun 11, 2013·4 cites·3 claims
- 2669US7678045B2Endoscope optical systemOLYMPUS CORP·Filed 2005·Granted Mar 16, 2010·6 cites·2 claims
- 2767US5902232ANon-flexible endoscope having a slender insert sectionOLYMPUS OPTICAL CO·Filed 1997·Granted May 11, 1999·26 cites·7 claims
- 2867US4683462ADevice for protecting audio equipment in vehicle against theftALPINE ELECTRONICS INC·Filed 1984·Granted Jul 28, 1987·27 cites·11 claims
- 2966US12213647B2Objective optical system, image pickup apparatus, and endoscopeOLYMPUS CORP·Filed 2022·Granted Feb 4, 2025·0 cites·18 claims
- 3066US2024071584A1Medical information system and medical image diagnostic deviceCANON MEDICAL SYSTEMS CORP·Filed 2023·Application pending·0 cites
- 3165US6866693B2Washable air filter for internal combustion engineSHUETSUTECHNICA CO LTD·Filed 2002·Granted Mar 15, 2005·14 cites·10 claims
- 3262US5632718ANon-flexible endoscope with objective lens system and relay lens systemOLYMPUS OPTICAL CO·Filed 1995·Granted May 27, 1997·24 cites·16 claims
- 3362US5083223AObjective lens system for endoscopesOLYMPUS OPTICAL CO·Filed 1989·Granted Jan 21, 1992·21 cites·30 claims
- 3461US8715170B2Objective optical system for endoscopeOLYMPUS MEDICAL SYSTEMS CORP·Filed 2012·Granted May 6, 2014·2 cites·2 claims
- 3561US6898022B2Stereo optical system pair for stereo endoscope systemOLYMPUS CORP·Filed 2002·Granted May 24, 2005·22 cites·28 claims
- 3658US8269349B2Semiconductor deviceHISHIDA TAKESHI·Filed 2009·Granted Sep 18, 2012·2 cites·6 claims
- 3757US8976468B2Endoscope objective optical systemOLYMPUS MEDICAL SYSTEMS CORP·Filed 2014·Granted Mar 10, 2015·1 cites·2 claims
- 3857US8159068B2Semiconductor deviceHISHIDA TAKESHI·Filed 2009·Granted Apr 17, 2012·2 cites·6 claims
- 3956US5954634AField conversion system for rigid endoscopesOLYMPUS OPTICAL CO·Filed 1998·Granted Sep 21, 1999·66 cites·4 claims
- 4051US11119306B2Image pickup optical system, endoscope, and image pickup apparatusOLYMPUS CORP·Filed 2020·Granted Sep 14, 2021·0 cites·20 claims
- 4151US10782511B2Objective optical system, endoscope, and endoscope systemOLYMPUS CORP·Filed 2019·Granted Sep 22, 2020·0 cites·18 claims
- 4247US11234580B2Endoscope illuminating optical systemOLYMPUS CORP·Filed 2018·Granted Feb 1, 2022·0 cites·5 claims
- 4347US2007115376A1Image pickup apparatus having two image sensorsOLYMPUS MEDICAL SYSTEMS CORP·Filed 2006·Application pending·0 cites
- 4446US10307044B2Endoscope illuminating optical systemOLYMPUS CORP·Filed 2017·Granted Jun 4, 2019·0 cites·2 claims
- 4546US9939508B2Medical image processing apparatus, magnetic resonance imaging apparatus, medical image processing method and magnetic resonance imaging methodTOSHIBA MEDICAL SYS CORP·Filed 2014·Granted Apr 10, 2018·0 cites·16 claims
- 4646US2020281963A1Hydrogen molecule-containing prophylactic or therapeutic agent for oxidative damage in intraocular surgeriesTAKAHASHI HIROSHI·Filed 2017·Application pending·0 cites
- 4743US11845952B2Adeno-associated virus vectorNIPPON MEDICAL SCHOOL FOUNDATION·Filed 2019·Granted Dec 19, 2023·0 cites·17 claims
- 4842US2020329684A1METHOD FOR OBTAINING RETINAL DEGENERATION (rd) MODEL MOUSE HAVING LOW RISK OF CAUSING RETINAL DETACHMENTNIPPON MEDICAL SCHOOL FOUNDATION·Filed 2020·Application pending·0 cites
- 4941US10864516B2Dispensing device and liquid transfer methodFUJIFILM CORP·Filed 2019·Granted Dec 15, 2020·0 cites·15 claims
- 5038US9230021B2Image diagnostic apparatus, image diagnostic method, medical image server and medical image storage methodIGARASHI TSUTOMU·Filed 2012·Granted Jan 5, 2016·0 cites·14 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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