Inventor · disambiguated record
Masayuki Iwasaka
Also filed as: IWASAKA MASAYUKI
29 granted patents·26 pending applications·3,068 citations·filing 2001–2018
96Inventor score
Top patents by PatentIndex Score
55 records- 0198US7530985B2Endoscopic suturing systemOLYMPUS CORP·Filed 2004·Granted May 12, 2009·1.5k cites·2 claims
- 0296US7922651B2Ultrasonic treatment apparatus, endoscope apparatus, and treatment methodOLYMPUS CORP·Filed 2006·Granted Apr 12, 2011·375 cites·4 claims
- 0396US7341555B2Method of using a guide wire, therapeutic instrument and endoscopeOLYMPUS CORP·Filed 2004·Granted Mar 11, 2008·972 cites·16 claims
- 0487US10340053B2Radiation-irradiation deviceFUJIFILM CORP·Filed 2018·Granted Jul 2, 2019·8 cites·7 claims
- 0582US9826887B2Surgical device, outer tube, endoscope, and treatment toolFUJIFILM CORP·Filed 2015·Granted Nov 28, 2017·4 cites·24 claims
- 0682US7875041B2Suturing method for penetrating holeOLYMPUS MEDICAL SYSTEMS CORP·Filed 2005·Granted Jan 25, 2011·19 cites·8 claims
- 0778US10441143B2Insertion assisting tool for endoscopeFUJIFILM CORP·Filed 2018·Granted Oct 15, 2019·2 cites·2 claims
- 0878US8465501B2Ligating apparatusMATSUOKA YOSHIAKI·Filed 2011·Granted Jun 18, 2013·16 cites·9 claims
- 0976US9839349B2Method of placing medical insertion instruments in body cavityFUJIFILM CORP·Filed 2013·Granted Dec 12, 2017·10 cites·14 claims
- 1075US7087010B2Endoscope and endoscope system thereofOLYMPUS CORP·Filed 2001·Granted Aug 8, 2006·73 cites·144 claims
- 1174US10456020B2Endoscopic surgery deviceFUJIFILM CORP·Filed 2015·Granted Oct 29, 2019·2 cites·8 claims
- 1271US10292576B2Surgical device, outer tube, endoscope, and treatment toolFUJIFILM CORP·Filed 2017·Granted May 21, 2019·1 cites·11 claims
- 1369US10149603B2EndoscopeFUJIFILM CORP·Filed 2016·Granted Dec 11, 2018·2 cites·6 claims
- 1469US9241615B2Image acquisition and display method and image capturing and display apparatusYOSHIDA KOJI·Filed 2011·Granted Jan 26, 2016·4 cites·18 claims
- 1568US9986897B2Insertion assisting tool for endoscopeFUJIFILM CORP·Filed 2013·Granted Jun 5, 2018·3 cites·6 claims
- 1667US6878159B2StentOLYMPUS CORP·Filed 2002·Granted Apr 12, 2005·32 cites·41 claims
- 1766US8758375B2Method for suturing perforationMIKKAICHI TAKAYASU·Filed 2005·Granted Jun 24, 2014·3 cites·7 claims
- 1864US10945711B2Tissue sampling deviceFUJIFILM CORP·Filed 2015·Granted Mar 16, 2021·1 cites·4 claims
- 1964US10448803B2Endoscopic surgery deviceFUJIFILM CORP·Filed 2015·Granted Oct 22, 2019·1 cites·9 claims
- 2063US7131992B2StentTERUMO CORP·Filed 2002·Granted Nov 7, 2006·22 cites·3 claims
- 2159US8777964B2Suture and ligature device for medical treatmentONISHI NORIO·Filed 2006·Granted Jul 15, 2014·4 cites·5 claims
- 2258US2003040950A1Production planning calculating apparatus and production planning calculating programOLYMPUS OPTICAL CO·Filed 2002·Application pending·0 cites
- 2355US2008243148A1Suture instrumentOLYMPUS MEDICAL SYSTEMS CORP·Filed 2008·Application pending·0 cites
- 2455US2009125039A1Suture instrumentOLYMPUS MEDICAL SYSTEMS CORP·Filed 2008·Application pending·0 cites
- 2554US2008085228A1Image reading deviceFUJIFILM CORP·Filed 2007·Application pending·0 cites
- 2652US8303519B2Guide wire having markings to indicate changes in structural featuresYUNOKI SEIKO·Filed 2005·Granted Nov 6, 2012·2 cites·11 claims
- 2749US2007112362A1Perforation suturing methodOLYMPUS MEDICAL SYSTEMS CORP·Filed 2005·Application pending·0 cites
- 2848US10674893B2Endoscopic surgical device and guide deviceFUJIFILM CORP·Filed 2018·Granted Jun 9, 2020·0 cites·18 claims
- 2948US8784438B2Perforation suturing methodMIKKAICHI TAKAYASU·Filed 2011·Granted Jul 22, 2014·0 cites·4 claims
- 3047US10542869B2Endoscopic surgical device and guide deviceFUJIFILM CORP·Filed 2018·Granted Jan 28, 2020·0 cites·15 claims
- 3144US2013211198A1Endoscopic deviceFUJIFILM CORP·Filed 2013·Application pending·0 cites
- 3244US2013217969A1Endoscope deviceFUJIFILM CORP·Filed 2013·Application pending·0 cites
- 3343US2012245420A1Endoscope apparatusYOSHIDA KOJI·Filed 2012·Application pending·0 cites
- 3442US2012053413A1Fluorescent endoscopy apparatusYOSHIDA KOJI·Filed 2011·Application pending·0 cites
- 3542US2012238815A1Insertion aid for endoscopeKOMI SHUJI·Filed 2012·Application pending·0 cites
- 3642US2012323074A1Insertion assisting tool for endoscopeIYAMA SHOZO·Filed 2012·Application pending·0 cites
- 3741US10595709B2Endoscopic surgery deviceFUJIFILM CORP·Filed 2015·Granted Mar 24, 2020·0 cites·12 claims
- 3841US2011245615A1Bending-insertion assisting instrument and insertion path securing apparatusFUJIFILM CORP·Filed 2011·Application pending·0 cites
- 3941US2012178993A1Guide assembly and endoscopeNAKAMURA TAKAYUKI·Filed 2011·Application pending·0 cites
- 4041US2012238817A1Self-propellable appratusOHTA YASUNORI·Filed 2012·Application pending·0 cites
- 4141US2012238805A1Endoscopic deviceIWASAKA MASAYUKI·Filed 2012·Application pending·0 cites
- 4240US10470646B2Medical instrument guiding deviceFUJIFILM CORP·Filed 2015·Granted Nov 12, 2019·0 cites·14 claims
- 4340US2011238093A1Ligating apparatusFUJIFILM CORP·Filed 2011·Application pending·0 cites
- 4440US2017007294A1Endoscopic surgical device, treatment tool, and guide memberFUJIFILM CORP·Filed 2016·Application pending·0 cites
- 4538US10010242B2EndoscopeFUJIFILM CORP·Filed 2016·Granted Jul 3, 2018·0 cites·7 claims
- 4638US2012184815A1Guide assembly for endoscopeYAMAKAWA SHINICHI·Filed 2011·Application pending·0 cites
- 4737US2012046523A1Self propelling deviceYAMAKAWA SHINICHI·Filed 2011·Application pending·0 cites
- 4837US2012053409A1Guide assembly for endoscopeYAMAKAWA SHINICHI·Filed 2011·Application pending·0 cites
- 4937US2012029282A1Guide assembly for endoscopeYAMAKAWA SHINICHI·Filed 2011·Application pending·0 cites
- 5037US2012029283A1Guide assembly for endoscopeYAMAKAWA SHINICHI·Filed 2011·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masayuki Iwasaka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →