Inventor · disambiguated record
Hirokazu Aoyama
Also filed as: AOYAMA HIROKAZU
73 granted patents·19 pending applications·995 citations·filing 1983–2025
99Inventor score
Top patents by PatentIndex Score
92 records- 0198US5679875AMethod for manufacturing 1,1,1,2,3-pentafluoropropene 1,1,1,2,3-pentafluoropropaneDAIKIN IND LTD·Filed 1993·Granted Oct 21, 1997·263 cites·20 claims
- 0296US6060628AManufacturing method for 1,1,1,3,3-pentafluoropropaneDAIKIN IND LTD·Filed 1996·Granted May 9, 2000·91 cites·14 claims
- 0395US11767379B2Method for manufacturing fluoropolymerDAIKIN IND LTD·Filed 2019·Granted Sep 26, 2023·7 cites·13 claims
- 0495US5714655AProcess of manufacturing 1,1,1,3,3-pentafluoropropane, process of manufacturing 2,2,3-trichloro 1,1,1,3,3-pentafluoropropane and process of manufacturing 2,3,3-trichloro-1,1,1-trifluoropropeneDAIKIN IND LTD·Filed 1994·Granted Feb 3, 1998·58 cites·19 claims
- 0595US5516951AProcess for preparing 1,1,1,4,4,4-hexafluoro-2-butene and 1,1,1,4,4,4-hexafluorobutaneDAIKIN IND LTD·Filed 1993·Granted May 14, 1996·57 cites·5 claims
- 0691US11512155B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2018·Granted Nov 29, 2022·3 cites·5 claims
- 0791US11279814B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2018·Granted Mar 22, 2022·2 cites·11 claims
- 0890US2025368814A1Method for manufacturing fluoropolymerDAIKIN IND LTD·Filed 2025·Application pending·0 cites
- 0989US12410266B2Method for manufacturing fluoropolymerDAIKIN IND LTD·Filed 2023·Granted Sep 9, 2025·0 cites·14 claims
- 1089US2024317907A1Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2024·Application pending·0 cites
- 1188US6018084AProcess for producing 1,1,1,3,3-pentafluoropropaneDAIKIN IND LTD·Filed 1996·Granted Jan 25, 2000·36 cites·2 claims
- 1287US5629461AMethod of producing 1,1,2,2,3-pentafluoropropaneDAIKIN IND LTD·Filed 1993·Granted May 13, 1997·26 cites·4 claims
- 1386US12049135B2Display device, display control method, and non-transitory computer-readable recording mediumHONDA MOTOR CO LTD·Filed 2021·Granted Jul 30, 2024·2 cites·15 claims
- 1486US12012470B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2022·Granted Jun 18, 2024·0 cites·19 claims
- 1586US11999681B2Alkyl sulfate ester or salt of sameDAIKIN IND LTD·Filed 2018·Granted Jun 4, 2024·2 cites·8 claims
- 1686US5608128AProduction methods of 1,1,1,4,4,4-hexsfluoro-2-butene compounds and 1,1,1,4,4,4,-hexafluorobutaneDAIKIN IND LTD·Filed 1994·Granted Mar 4, 1997·26 cites·10 claims
- 1786US2025361380A1Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2025·Application pending·0 cites
- 1883US8123983B2Actuator elementKOMATSU YUZO·Filed 2007·Granted Feb 28, 2012·8 cites·8 claims
- 1982US12404387B2Production method for fluoropolymer, surfactant for polymerization, and use of surfactantDAIKIN IND LTD·Filed 2022·Granted Sep 2, 2025·0 cites·11 claims
- 2082US5659093AMethod of producing 1,1,1,3,3-pentafluoropropane, a method of producing 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane, and a method of producing 1,1,1,2,3,3-hexachloropropeneDAIKIN IND LTD·Filed 1993·Granted Aug 19, 1997·16 cites·10 claims
- 2181US5532418AMethod of producing 1,1,1,2,3,3,-hexafluoropropane and tetrafluorochloropropeneDAIKIN IND LTD·Filed 1993·Granted Jul 2, 1996·18 cites·4 claims
- 2280US5714654AMethod of Producing 1,1,1,3,3-pentafluoropropane and/or 1,1,3,3,3-pentafluoropropeneDAIKIN IND LTD·Filed 1994·Granted Feb 3, 1998·17 cites·18 claims
- 2380US2023220129A1Method for manufacturing fluoropolymer, surfactant for polymerization, use for surfactant, and compositionDAIKIN IND LTD·Filed 2023·Application pending·0 cites
- 2479US7989535B2Surface-modified nanofiller and polymer composite materialDAIKIN IND LTD·Filed 2006·Granted Aug 2, 2011·7 cites·14 claims
- 2578US8236887B2Fluorine-containing polymer having heteroaromatic ringKOMATSU YUZO·Filed 2007·Granted Aug 7, 2012·3 cites·8 claims
- 2678US6908724B2Fluorine-containing polymer having acid-reactive group and chemically amplifying type photoresist composition prepared from sameDAIKIN IND LTD·Filed 2002·Granted Jun 21, 2005·35 cites·38 claims
- 2777US5728902AMethod for manufacturing 1,1,1,3,3-pentafluoropropeneDAIKIN IND LTD·Filed 1996·Granted Mar 17, 1998·17 cites·8 claims
- 2876US6610896B2Process for production of perfluoroalkadienesDAIKIN IND LTD·Filed 2000·Granted Aug 26, 2003·8 cites·4 claims
- 2976US4835300AFluorine containing urethane compoundsDAIKIN IND LTD·Filed 1986·Granted May 30, 1989·16 cites·6 claims
- 3074US4427803AMold release compositionDAIKIN IND LTD·Filed 1983·Granted Jan 24, 1984·31 cites·9 claims
- 3172US6664430B1Catalysts for the preparation of fluorinated alcohols and process for the preparation of fluorinated alcoholsDAIKIN IND LTD·Filed 2000·Granted Dec 16, 2003·6 cites·4 claims
- 3272US5965779AFluorooxetane compound and process for its preparationDAIKIN IND LTD·Filed 1998·Granted Oct 12, 1999·15 cites·6 claims
- 3372US2025171627A1Polytetrafluoroethylene and stretched bodyDAIKIN IND LTD·Filed 2025·Application pending·0 cites
- 3469US2023279161A1Fluoropolymer and manufacturing method thereforDAIKIN IND LTD·Filed 2023·Application pending·0 cites
- 3568US11634514B2Method for manufacturing fluoropolymer, surfactant for polymerization, use for surfactant, and compositionDAIKIN IND LTD·Filed 2019·Granted Apr 25, 2023·0 cites·6 claims
- 3668US5689019AManufacturing method for 1,1,1,2,3,3,3-heptafluoropropaneDAIKIN IND LTD·Filed 1995·Granted Nov 18, 1997·10 cites·9 claims
- 3768US2024084123A1Oil-resistant agent and paper productSAKAMAKI TATSUNORI·Filed 2023·Application pending·0 cites
- 3867US5919993AMethod for preparing halogenated butene and butaneDAIKIN IND LTD·Filed 1993·Granted Jul 6, 1999·9 cites·17 claims
- 3967US2021070688A1Carboxylate salt or sulfonate salt, and surfactantDAIKIN IND LTD·Filed 2020·Application pending·0 cites
- 4066US2024191434A1Oil-resistant compound containing hydrogen bonding siteDAIKIN IND LTD·Filed 2023·Application pending·0 cites
- 4166US2023220217A1Modified natural material and use thereofDAIKIN IND LTD·Filed 2023·Application pending·0 cites
- 4265US4563493AOmega-perfluoroalkyl-1,2-epoxyalkane copolymer and use thereofDAIKIN IND LTD·Filed 1985·Granted Jan 7, 1986·16 cites·10 claims
- 4365US2024132432A1Fluorine-containing pillarareneUNIV KYOTO·Filed 2023·Application pending·0 cites
- 4465US2021221992A1Polytetrafluoroethylene and stretched bodyDAIKIN IND LTD·Filed 2019·Application pending·0 cites
- 4564US10865178B2Carboxylate salt or sulfonate salt, and surfactantDAIKIN IND LTD·Filed 2017·Granted Dec 15, 2020·0 cites·7 claims
- 4664US5326913AProcess for preparing fluorinated compoundDAIKIN IND LTD·Filed 1992·Granted Jul 5, 1994·8 cites·17 claims
- 4762US5667594ACleaning method with solventDAIKIN IND LTD·Filed 1992·Granted Sep 16, 1997·22 cites·1 claims
- 4861US2023309514A1Housing for livestock sensor and livestock sensorDAIKIN IND LTD·Filed 2023·Application pending·0 cites
- 4961US2023312777A1Seal member for livestock sensor and livestock sensorDAIKIN IND LTD·Filed 2023·Application pending·0 cites
- 5060US8212053B2Process for preparing heteroaromatic ring compound having N-Rf groupKOMATSU YUZO·Filed 2006·Granted Jul 3, 2012·0 cites·2 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hirokazu Aoyama 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 →