Inventor · disambiguated record
Takefumi Hayashi
Also filed as: HAYASHI TAKEFUMI
32 granted patents·6 pending applications·248 citations·filing 1997–2022
96Inventor score
Top patents by PatentIndex Score
38 records- 0189US7777893B2Optical image measurement deviceTOPCON CORP·Filed 2007·Granted Aug 17, 2010·17 cites·5 claims
- 0284US9949635B2Ophthalmic surgical apparatus and attachment for ophthalmic surgeryKK TOPCON·Filed 2015·Granted Apr 24, 2018·4 cites·12 claims
- 0383US7643154B2Optical image measurement deviceTOPCON CORP·Filed 2007·Granted Jan 5, 2010·31 cites·5 claims
- 0479US8042944B2Apparatus and method for observing an eye, as well as OCT-moduleTOPCON EUROP MEDICAL B V·Filed 2008·Granted Oct 25, 2011·10 cites·10 claims
- 0578US9980643B2Ophthalmologic apparatusKK TOPCON·Filed 2016·Granted May 29, 2018·3 cites·35 claims
- 0678US8622547B2Fundus observation apparatusHAYASHI TAKEFUMI·Filed 2010·Granted Jan 7, 2014·11 cites·10 claims
- 0774US10791922B2Ophthalmological device and ophthalmological inspection systemTOPCON CORP·Filed 2017·Granted Oct 6, 2020·2 cites·12 claims
- 0873US10136809B2Ophthalmic apparatusKK TOPCON·Filed 2015·Granted Nov 27, 2018·2 cites·20 claims
- 0969US8801180B2Ophthalmic tomographic imager with corneo-retinal image analysisHAYASHI TAKEFUMI·Filed 2009·Granted Aug 12, 2014·7 cites·15 claims
- 1069US7859680B2Optical image measurement deviceTOPCON CORP·Filed 2008·Granted Dec 28, 2010·6 cites·13 claims
- 1168US11813022B2Ophthalmic apparatus, controlling method thereof, and recording mediumTOPCON CORP·Filed 2022·Granted Nov 14, 2023·0 cites·13 claims
- 1267US7982880B2Optical image measurement deviceTOPCON CORP·Filed 2010·Granted Jul 19, 2011·3 cites·2 claims
- 1363US9526416B2Ophthalmologic apparatusKK TOPCON·Filed 2013·Granted Dec 27, 2016·2 cites·5 claims
- 1460US8646913B2Optical image measuring device and control method thereofHAYASHI TAKEFUMI·Filed 2009·Granted Feb 11, 2014·2 cites·11 claims
- 1560US8205988B2StereomicroscopeFUJII KOUTA·Filed 2009·Granted Jun 26, 2012·5 cites·20 claims
- 1659US6409344B1Ocular refractive-power measuring deviceTOPCON CORP·Filed 2000·Granted Jun 25, 2002·19 cites·6 claims
- 1758US11547294B2Ophthalmic apparatus, controlling method thereof, and recording mediumTOPCON CORP·Filed 2019·Granted Jan 10, 2023·0 cites·9 claims
- 1858US11253148B2Ophthalmological device and ophthalmological inspection systemTOPCON CORP·Filed 2019·Granted Feb 22, 2022·0 cites·4 claims
- 1958US2013252225A1Study system and display methodHAYASHI TAKEFUMI·Filed 2011·Application pending·0 cites
- 2058US2016240092A1Study system and display methodSONY CORP·Filed 2015·Application pending·0 cites
- 2157US10285585B2Ophthalmic surgical apparatus and attachment for ophthalmic surgeryKK TOPCON·Filed 2017·Granted May 14, 2019·0 cites·8 claims
- 2257US8573776B2Fundus observation apparatusKOIZUMI HIROSHI·Filed 2010·Granted Nov 5, 2013·1 cites·26 claims
- 2356USRE39882EOphthalmologic characteristic measuring apparatusTOPCON CORP·Filed 2003·Granted Oct 16, 2007·13 cites·8 claims
- 2454US6974215B2Optical instrumentTOPCON CORP·Filed 2001·Granted Dec 13, 2005·11 cites·6 claims
- 2553US6439719B2Ophthalmological apparatusTOPCON CORP·Filed 2000·Granted Aug 27, 2002·8 cites·9 claims
- 2653US6070981AOphthalmologic characteristic measuring apparatusTOPCON CORP·Filed 1998·Granted Jun 6, 2000·66 cites·4 claims
- 2752US2015116659A9Fundus observation apparatusTOPCON CORP·Filed 2013·Application pending·0 cites
- 2851US8662668B2Fundus oculi observing deviceSHIMIZU HITOSHI·Filed 2009·Granted Mar 4, 2014·0 cites·11 claims
- 2950US10980414B2Ophthalmologic apparatusTOPCON CORP·Filed 2019·Granted Apr 20, 2021·0 cites·11 claims
- 3050US9615734B2Ophthalmologic apparatusKK TOPCON·Filed 2014·Granted Apr 11, 2017·0 cites·24 claims
- 3149US7216983B2Ophthalmologic apparatusTOPCON CORP·Filed 2003·Granted May 15, 2007·3 cites·3 claims
- 3249US2010157311A1Optical image measurement deviceHAYASHI TAKEFUMI·Filed 2008·Application pending·0 cites
- 3346US7275823B2Optometric deviceTOPCON CORP·Filed 2002·Granted Oct 2, 2007·3 cites·19 claims
- 3443US10743760B2Ophthalmological device and ophthalmological inspection systemTOPCON CORP·Filed 2017·Granted Aug 18, 2020·0 cites·11 claims
- 3540US2016235299A1Ophthalmic surgical microscope and ophthalmic surgical attachmentKK TOPCON·Filed 2016·Application pending·0 cites
- 3639US7341349B2Ophthalmologic apparatus and ophthalmologic chartTOPCON CORP·Filed 2002·Granted Mar 11, 2008·0 cites·10 claims
- 3738US2015272436A1Ophthalmologic apparatusTOPCON CORP·Filed 2015·Application pending·0 cites
- 3835US5886780ARefractometer with deflecting elementTOPCON CORP·Filed 1997·Granted Mar 23, 1999·19 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Takefumi Hayashi 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 →