Inventor · disambiguated record
Hirotatsu Ishii
Also filed as: ISHII HIROTATSU
13 granted patents·6 pending applications·50 citations·filing 2001–2023
88Inventor score
Files withFURUKAWA ELECTRIC CO LTD10SHINAGAWA TATSUYUKI2IMAI SUGURU1IWAI NORIHIRO1KAWAKITA YASUMASA1
Top patents by PatentIndex Score
19 records- 0187US9911842B2Nitride semiconductor device, production method thereof, diode, and field effect transistorFURUKAWA ELECTRIC CO LTD·Filed 2016·Granted Mar 6, 2018·8 cites·40 claims
- 0285US8488644B2Semiconductor laser element and manufacturing method thereofIMAI SUGURU·Filed 2009·Granted Jul 16, 2013·16 cites·19 claims
- 0383US8222658B2Semiconductor light emitting element and method of manufacturing thereforSHINAGAWA TATSUYUKI·Filed 2009·Granted Jul 17, 2012·9 cites·17 claims
- 0473US8842707B2Semiconductor laser element and method of manufacturing semiconductor laser elementTANIGUCHI HIDEHIRO·Filed 2010·Granted Sep 23, 2014·3 cites·11 claims
- 0569US6898224B2Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted May 24, 2005·10 cites·32 claims
- 0666US2024106189A1Chip on submountFURUKAWA ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 0763US8472492B2Vertical cavity surface emitting laser element, vertical cavity surface emitting laser array element, vertical cavity surface emitting laser device, light source device, and optical moduleKAWAKITA YASUMASA·Filed 2010·Granted Jun 25, 2013·2 cites·11 claims
- 0858US8222639B2Nitride based semiconductor device and method of manufacturing the sameSHINAGAWA TATSUYUKI·Filed 2009·Granted Jul 17, 2012·1 cites·1 claims
- 0955US9478944B2Semiconductor laser element and method of manufacturing semiconductor laser elementFURUKAWA ELECTRIC CO LTD·Filed 2014·Granted Oct 25, 2016·0 cites·11 claims
- 1055US8929692B2Integrated optical device and manufacturing method of the sameIWAI NORIHIRO·Filed 2012·Granted Jan 6, 2015·1 cites·9 claims
- 1154US12025843B2Optical processing structure of optical fiberFURUKAWA ELECTRIC CO LTD·Filed 2021·Granted Jul 2, 2024·0 cites·8 claims
- 1250US8619831B2Vertical cavity surface emitting laser element, vertical cavity surface emitting laser array element, vertical cavity surface emitting laser device, light source device, and optical moduleFURUKAWA ELECTRIC CO LTD·Filed 2013·Granted Dec 31, 2013·0 cites·11 claims
- 1342US9960572B2Semiconductor deviceFURUKAWA ELECTRIC CO LTD·Filed 2016·Granted May 1, 2018·0 cites·2 claims
- 1437US2011261849A1Semiconductor light emitting element and method of manufacturing thereofFURUKAWA ELECTRIC CO LTD·Filed 2011·Application pending·0 cites
- 1535US2011274131A1Two-dimensional surface-emitting laser array element, surface-emitting laser device and light sourceFURUKAWA ELECTRIC CO LTD·Filed 2010·Application pending·0 cites
- 1635US2001015437A1GaN field-effect transistor, inverter device, and production processes thereforFiled 2001·Application pending·0 cites
- 1733US10033154B2Semiconductor optical element, semiconductor laser element, and method for manufacturing semiconductor optical element and semiconductor laser element, and method for manufacturing semiconductor laser module and semiconductor elementFURUKAWA ELECTRIC CO LTD·Filed 2015·Granted Jul 24, 2018·0 cites·7 claims
- 1833US2001040246A1GaN field-effect transistor and method of manufacturing the sameFiled 2001·Application pending·0 cites
- 1932US2012320447A1Semiconductor laser, surface emitting semiconductor laser, semiconductor laser module, and non-linear optical deviceTAKAKI KEISHI·Filed 2011·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →