Inventor · disambiguated record
Yuuji Tanaka
Also filed as: TANAKA YUUJI
66 granted patents·29 pending applications·85 citations·filing 1991–2025
98Inventor score
Top patents by PatentIndex Score
95 records- 0196US10538605B2Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powderDAIKIN IND LTD·Filed 2017·Granted Jan 21, 2020·8 cites·5 claims
- 0292US9318270B2Perovskite solar cellHORIUCHI TAMOTSU·Filed 2015·Granted Apr 19, 2016·8 cites·8 claims
- 0391US11512155B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2018·Granted Nov 29, 2022·3 cites·5 claims
- 0491US11279814B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2018·Granted Mar 22, 2022·2 cites·11 claims
- 0589US10793650B2Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powderDAIKIN IND LTD·Filed 2019·Granted Oct 6, 2020·2 cites·2 claims
- 0689US2024317907A1Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2024·Application pending·0 cites
- 0788US8737879B2Opening and closing mechanism and image forming apparatus including the opening and closing mechanismITO YOICHI·Filed 2011·Granted May 27, 2014·7 cites·17 claims
- 0887US9378899B2Photoelectric conversion elementARAI RYOTA·Filed 2014·Granted Jun 28, 2016·6 cites·6 claims
- 0987US9373450B2Photoelectric conversion elementARAI RYOTA·Filed 2014·Granted Jun 21, 2016·6 cites·4 claims
- 1086US12012470B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2022·Granted Jun 18, 2024·0 cites·19 claims
- 1186US12006407B2Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powderDAIKIN IND LTD·Filed 2023·Granted Jun 11, 2024·0 cites·8 claims
- 1286US10870735B2Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powderDAIKIN IND LTD·Filed 2017·Granted Dec 22, 2020·1 cites·4 claims
- 1386US10727001B2Photoelectric conversion elementRICOH CO LTD·Filed 2015·Granted Jul 28, 2020·3 cites·11 claims
- 1486US2025361380A1Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2025·Application pending·0 cites
- 1585US9640330B2Photoelectric conversion element and solar cellTANAKA YUUJI·Filed 2014·Granted May 2, 2017·5 cites·8 claims
- 1684US12371349B2Method for removing fluorine-containing compound from waste waterDAIKIN IND LTD·Filed 2024·Granted Jul 29, 2025·0 cites·11 claims
- 1782US12404387B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2022·Granted Sep 2, 2025·0 cites·11 claims
- 1882US10636579B2Photoelectric conversion element and solar cellRICOH CO LTD·Filed 2015·Granted Apr 28, 2020·2 cites·4 claims
- 1981US12268043B2Photoelectric conversion element, photoelectric conversion element module, electronic device, and power supply moduleTAMOTO NOZOMU·Filed 2020·Granted Apr 1, 2025·1 cites·20 claims
- 2081US10651390B2Tertiary amine compound, photoelectric conversion element, and solar cellRICOH CO LTD·Filed 2017·Granted May 12, 2020·2 cites·9 claims
- 2181US10367103B2Photoelectric conversion elementTANAKA YUUJI·Filed 2017·Granted Jul 30, 2019·2 cites·10 claims
- 2278US8679712B2Photoreceptor and image forming method, image forming apparatus, and process cartridge using the photoreceptorTANAKA YUUJI·Filed 2012·Granted Mar 25, 2014·2 cites·11 claims
- 2377US12062503B2Photoelectric conversion element, photoelectric conversion module, electronic device, and power supply moduleKANEI NAOMICHI·Filed 2020·Granted Aug 13, 2024·1 cites·16 claims
- 2477US10847323B2Photoelectric conversion element and solar cellRICOH CO LTD·Filed 2019·Granted Nov 24, 2020·1 cites·17 claims
- 2577US8771909B2Electrophotographic photoconductor, image forming apparatus, and process cartridgeKOIZUKA YUUSUKE·Filed 2012·Granted Jul 8, 2014·2 cites·9 claims
- 2676US11814490B2Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powderDAIKIN IND LTD·Filed 2020·Granted Nov 14, 2023·0 cites·1 claims
- 2776US8535863B2Electrophotographic photoreceptor, and image forming apparatus and process cartridge using sameASANO TOMOHARU·Filed 2011·Granted Sep 17, 2013·2 cites·11 claims
- 2875US10693092B2Photoelectric conversion element and solar cellTANAKA YUUJI·Filed 2018·Granted Jun 23, 2020·1 cites·11 claims
- 2974US10763050B2Photoelectric conversion elementTANAKA YUUJI·Filed 2018·Granted Sep 1, 2020·1 cites·20 claims
- 3074US2024318930A1Refrigerant pipe, heat exchanger, and method for producing refrigerant pipeDAIKIN IND LTD·Filed 2024·Application pending·0 cites
- 3169US12030790B2Method for removing fluorine-containing compound from waste waterDAIKIN IND LTD·Filed 2019·Granted Jul 9, 2024·0 cites·10 claims
- 3269US11069485B2Photoelectric conversion elementRICOH CO LTD·Filed 2020·Granted Jul 20, 2021·0 cites·22 claims
- 3368US11101080B2Photoelectric conversion element and solar cellRICOH CO LTD·Filed 2020·Granted Aug 24, 2021·0 cites·15 claims
- 3467US7897309B2Bisazo compound, 2-hydroxy-3-phenylcarbamoyl naphthalene compound and method manufacturing bisazo compoundRICOH CO LTD·Filed 2007·Granted Mar 1, 2011·1 cites·5 claims
- 3566US11756743B2Photoelectric conversion elementRICOH CO LTD·Filed 2021·Granted Sep 12, 2023·0 cites·18 claims
- 3665US8652717B2Image bearing member and image forming method, image forming apparatus, and process cartridge using the sameSHIMOYAMA KEISUKE·Filed 2011·Granted Feb 18, 2014·1 cites·14 claims
- 3764US11618806B2Method for producing composition containing low molecular weight polytetrafluoroethyleneDAIKIN IND LTD·Filed 2019·Granted Apr 4, 2023·0 cites·6 claims
- 3864US2024369517A1Mass spectrometry method for fluoroether compoundDAIKIN IND LTD·Filed 2024·Application pending·0 cites
- 3964US2025294951A1Photoelectric conversion element, solar cell module, and solar water heaterTANAKA YUUJI·Filed 2025·Application pending·0 cites
- 4063US11692047B2Manufacturing method for low molecular weight polytetrafluoroethyleneDAIKIN IND LTD·Filed 2019·Granted Jul 4, 2023·0 cites·5 claims
- 4163US11081662B2Photoelectric conversion element and solar cellRICOH CO LTD·Filed 2020·Granted Aug 3, 2021·0 cites·20 claims
- 4263US8380109B2Image forming apparatus and process cartridgeRICOH CO LTD·Filed 2009·Granted Feb 19, 2013·2 cites·12 claims
- 4362US11502264B2Photoelectric conversion element and photoelectric conversion moduleRICOH CO LTD·Filed 2021·Granted Nov 15, 2022·0 cites·11 claims
- 4462US2023134849A1Photoelectric conversion element, photoelectric conversion module, and electronic deviceTANAKA MASATO·Filed 2022·Application pending·0 cites
- 4561US7858278B2Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptorRICOH CO LTD·Filed 2007·Granted Dec 28, 2010·2 cites·16 claims
- 4661US2004143514A1Part ordering system and part ordering methodFiled 2003·Application pending·0 cites
- 4759US11575095B2Photoelectric conversion device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2019·Granted Feb 7, 2023·0 cites·12 claims
- 4859US2025212592A1Photoelectric conversion element, photoelectric conversion module, electronic device, and solar cell moduleYAMAMOTO SATOSHI·Filed 2023·Application pending·0 cites
- 4959US2019305153A1Photoelectric conversion elementTANAKA YUUJI·Filed 2019·Application pending·0 cites
- 5058US12038240B2Refrigerant pipe, heat exchanger, and method for producing refrigerant pipeDAIKIN IND LTD·Filed 2019·Granted Jul 16, 2024·0 cites·5 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →