Inventor · disambiguated record
Toshiyuki Fujii
Also filed as: FUJII TOSHIYUKI · FUJJI TOSHIYUKI
81 granted patents·20 pending applications·424 citations·filing 1977–2025
99Inventor score
Top patents by PatentIndex Score
101 records- 0192US10205402B2Power conversion device for converting power between a DC circuit and an AC circuit by performing a non-linear operationMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Feb 12, 2019·10 cites·10 claims
- 0292US2025389923A1Lens and light emitting deviceNICHIA CORP·Filed 2025·Application pending·0 cites
- 0391US10244932B2Endoscope system with antifogging heating of distal lensOLYMPUS CORP·Filed 2017·Granted Apr 2, 2019·13 cites·4 claims
- 0491US6242895B1Controller of adjustable DC voltage for a transformerless reactive series compensatorMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Jun 5, 2001·55 cites·20 claims
- 0590US2025321396A1Lens and light emitting deviceNICHIA CORP·Filed 2025·Application pending·0 cites
- 0689US11466770B2Driving force transmission apparatusJATCO LTD·Filed 2018·Granted Oct 11, 2022·4 cites·5 claims
- 0788US12137879B2Image processing apparatus, image processing method, and endoscope apparatusOLYMPUS CORP·Filed 2022·Granted Nov 12, 2024·1 cites·12 claims
- 0888US10883700B2Lens, light emitting device and method of manufacturing the lens and the light emitting deviceNICHIA CORP·Filed 2019·Granted Jan 5, 2021·4 cites·9 claims
- 0986US12049950B2Lid componentJATCO LTD·Filed 2021·Granted Jul 30, 2024·2 cites·9 claims
- 1086US11757377B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Sep 12, 2023·3 cites·20 claims
- 1186US9712084B2Electric power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Jul 18, 2017·12 cites·20 claims
- 1285US12153277B2Lens and light emitting deviceNICHIA CORP·Filed 2023·Granted Nov 26, 2024·0 cites·20 claims
- 1385US12057787B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Aug 6, 2024·2 cites·20 claims
- 1484US11640038B2Lens, light emitting device and method of manufacturing the lens and the light emitting deviceNICHIA CORP·Filed 2019·Granted May 2, 2023·1 cites·21 claims
- 1584US10560036B2Power conversion device for reliable control of circulating current while maintaining voltage of a cellMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Feb 11, 2020·5 cites·12 claims
- 1683US12379564B2Method of manufacturing lens and light emitting deviceNICHIA CORP·Filed 2022·Granted Aug 5, 2025·0 cites·10 claims
- 1782US4217689AProcess for preparing semiconductor devicesMITSUBISHI ELECTRIC CORP·Filed 1977·Granted Aug 19, 1980·49 cites·14 claims
- 1881US12416774B2Method of manufacturing lens and light emitting deviceNICHIA CORP·Filed 2022·Granted Sep 16, 2025·0 cites·20 claims
- 1981US6225791B1Controller for performing a decoupling control of a transformerless reactive series compensatorMITSUBISHI ELECTRIC CORP·Filed 2000·Granted May 1, 2001·24 cites·20 claims
- 2079US12218606B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2021·Granted Feb 4, 2025·1 cites·20 claims
- 2179US12117162B2Light emitting deviceNICHIA CORP·Filed 2023·Granted Oct 15, 2024·0 cites·18 claims
- 2279US11239664B2Power conversion systemMITSUBISHI ELECTRIC CORP·Filed 2019·Granted Feb 1, 2022·3 cites·7 claims
- 2378US9564827B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2013·Granted Feb 7, 2017·5 cites·16 claims
- 2477US12413156B2Capacitor balancing control in an HVDC MMCMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Sep 9, 2025·1 cites·11 claims
- 2576US11909307B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2019·Granted Feb 20, 2024·2 cites·17 claims
- 2676US10637343B2Power conversion device for reliable control of circulating currentMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Apr 28, 2020·3 cites·13 claims
- 2775US6654260B2Asymmetrical power converting apparatus employing self-arc-suppressing switchesMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Nov 25, 2003·30 cites·18 claims
- 2875US5642822ASuspended load vibration preventing apparatusMITSUBISHI HEAVY IND LTD·Filed 1996·Granted Jul 1, 1997·31 cites·9 claims
- 2973US11644635B2Lens, light emitting device and method of manufacturing the lens and the light emitting deviceNICHIA CORP·Filed 2019·Granted May 9, 2023·0 cites·20 claims
- 3072US12015354B2Power conversion device capable of suppressing a harmonic component in an output voltage from an arm that increases after bypass of a failed converter cellMITSUBISHI ELECTRIC CORP·Filed 2018·Granted Jun 18, 2024·2 cites·5 claims
- 3170US10326355B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Jun 18, 2019·2 cites·22 claims
- 3269US11788708B2Lens and light emitting deviceNICHIA CORP·Filed 2020·Granted Oct 17, 2023·0 cites·13 claims
- 3368US8576593B2AC-DC power converting apparatus having sub-converters connected in series between main converter and AC power supplyMORI OSAMU·Filed 2009·Granted Nov 5, 2013·9 cites·9 claims
- 3467US11750080B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2018·Granted Sep 5, 2023·1 cites·9 claims
- 3567US5808462AApparatus for detecting the amplitude and phase of an a.c. signalMITSUBISHI ELECTRIC CORP·Filed 1996·Granted Sep 15, 1998·20 cites·6 claims
- 3665US11336169B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2018·Granted May 17, 2022·1 cites·12 claims
- 3764US12405459B2Endoscope and endoscope manufacturing methodOLYMPUS MEDICAL SYSTEMS CORP·Filed 2024·Granted Sep 2, 2025·0 cites·20 claims
- 3864US5500672AMulti-media communication apparatus for transmitting audio information, video information and character information simultaneouslyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Mar 19, 1996·24 cites·11 claims
- 3961US12475389B2Training data generation device, recording method, and inference deviceOLYMPUS CORP·Filed 2022·Granted Nov 18, 2025·0 cites·9 claims
- 4061US10840813B2Power conversion systemMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Nov 17, 2020·1 cites·14 claims
- 4160US6351720B1Trolley camera position detecting apparatusMITSUBISHI HEAVY IND LTD·Filed 1999·Granted Feb 26, 2002·22 cites·1 claims
- 4259US12212880B2Image processing apparatus, observation system, and observation methodOLYMPUS CORP·Filed 2022·Granted Jan 28, 2025·0 cites·17 claims
- 4359US9960709B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2016·Granted May 1, 2018·1 cites·18 claims
- 4459US7345379B2Power converter with voltage and current fault settingMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Mar 18, 2008·13 cites·8 claims
- 4559US5498955AApparatus for detecting the amplitude and phase of an a.c. signalMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Mar 12, 1996·13 cites·3 claims
- 4658US12348127B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2021·Granted Jul 1, 2025·0 cites·20 claims
- 4758US9806630B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Oct 31, 2017·1 cites·15 claims
- 4857US9812992B2Power conversion systemMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Nov 7, 2017·1 cites·11 claims
- 4957US9755542B2Direct-current power transmission power conversion device and direct-current power transmission power conversion methodMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Sep 5, 2017·1 cites·13 claims
- 5057US2023039047A1Image processing apparatus, image processing method, navigation method and endoscope systemOLYMPUS CORP·Filed 2022·Application pending·0 cites
Showing the top 50 of 101 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →