Inventor · disambiguated record
Hirofumi Kondo
Also filed as: KONDO HIROFUMI
97 granted patents·37 pending applications·823 citations·filing 1982–2024
99Inventor score
Top patents by PatentIndex Score
134 records- 0196US9150011B1Liquid consuming apparatusBROTHER IND LTD·Filed 2014·Granted Oct 6, 2015·15 cites·21 claims
- 0295US9132653B2Ink containing deviceTAKAGI YUKI·Filed 2013·Granted Sep 15, 2015·9 cites·20 claims
- 0395US7138164B2Optical recording mediumSONY CORP·Filed 2005·Granted Nov 21, 2006·28 cites·23 claims
- 0494US9517632B2Ink containing deviceBROTHER IND LTD·Filed 2015·Granted Dec 13, 2016·5 cites·17 claims
- 0594US9238364B2Liquid jetting apparatus and piezoelectric actuatorKONDO HIROFUMI·Filed 2013·Granted Jan 19, 2016·9 cites·14 claims
- 0693US8944554B2Liquid jetting apparatusKONDO HIROFUMI·Filed 2014·Granted Feb 3, 2015·8 cites·12 claims
- 0793US7775518B2Sheet carrying device and sheet carrying methodTOSHIBA KK·Filed 2008·Granted Aug 17, 2010·13 cites·17 claims
- 0893US4599834ASeismic isolatorTOSHIBA KK·Filed 1984·Granted Jul 15, 1986·78 cites·11 claims
- 0992US5922787AComposition for forming antifouling antifouling film, optical component, and display deviceSONY CORP·Filed 1997·Granted Jul 13, 1999·90 cites·10 claims
- 1091US9079411B2Ink cartridgeTAKAGI YUKI·Filed 2013·Granted Jul 14, 2015·5 cites·18 claims
- 1189US11811989B2Image forming apparatus including antenna in coverBROTHER IND LTD·Filed 2020·Granted Nov 7, 2023·2 cites·6 claims
- 1289US7343689B2Sheet thickness detection device, sheet conveying device, image forming apparatusTOSHIBA KK·Filed 2006·Granted Mar 18, 2008·11 cites·19 claims
- 1389US5453539APerfluoropolyether derivatives, and lubricants and magnetic recording medium using the sameSONY CORP·Filed 1992·Granted Sep 26, 1995·37 cites·7 claims
- 1488US9920272B2Ionic liquid, lubricant, and magnetic recording mediumDEXERIALS CORP·Filed 2015·Granted Mar 20, 2018·3 cites·5 claims
- 1587US9945077B2Clupak paperJUJO PAPER CO LTD·Filed 2014·Granted Apr 17, 2018·19 cites·8 claims
- 1687US8002380B2Cartridge-information detecting deviceBROTHER IND LTD·Filed 2008·Granted Aug 23, 2011·8 cites·12 claims
- 1786US10244135B2Image processing apparatus with a USB interface to restrict power delivery to an external deviceBROTHER IND LTD·Filed 2018·Granted Mar 26, 2019·4 cites·11 claims
- 1884US8525156B2Organic thin film transistor having an amorphous channel control layer with specified inozation potentialNAKAMURA HIROAKI·Filed 2008·Granted Sep 3, 2013·5 cites·18 claims
- 1984US4565779APhotochromic compounds and photosensitive compositions containing the compoundsSONY CORP·Filed 1983·Granted Jan 21, 1986·15 cites·4 claims
- 2083US8985734B2Liquid jetting apparatus, piezoelectric actuator, and method for producing the liquid jetting apparatusKONDO HIROFUMI·Filed 2013·Granted Mar 24, 2015·3 cites·21 claims
- 2183US6252624B1Three dimensional displayIDEMITSU KOSAN CO·Filed 1998·Granted Jun 26, 2001·118 cites·10 claims
- 2282US9809031B2Liquid cartridgeBROTHER IND LTD·Filed 2014·Granted Nov 7, 2017·3 cites·14 claims
- 2381US4662133AFloor system for seismic isolationTOSHIBA KK·Filed 1985·Granted May 5, 1987·47 cites·13 claims
- 2480US8946688B2Polycyclic ring-fused compound and organic thin film transistor utilizing the sameSUNAGAWA MISA·Filed 2010·Granted Feb 3, 2015·5 cites·14 claims
- 2580US4735848AMagnetic recording mediumSONY CORP·Filed 1987·Granted Apr 5, 1988·42 cites·7 claims
- 2679US9509873B2Image forming apparatus with communication deviceMATSUSHIMA RYOICHI·Filed 2013·Granted Nov 29, 2016·3 cites·11 claims
- 2779US2025070475A1Radio wave absorber, radio wave absorption structure including radio wave absorber, and composition for radio wave absorberIDEMITSU KOSAN CO·Filed 2024·Application pending·0 cites
- 2878US10047091B2Ionic liquid, lubricating agent, and magnetic recording mediumDEXERIALS CORP·Filed 2013·Granted Aug 14, 2018·2 cites·11 claims
- 2978US6396013B1Door switch with hermetic cap having an integrally molded abutment portion with low friction resistanceTOKAI RIKA CO LTD·Filed 2000·Granted May 28, 2002·20 cites·10 claims
- 3077US5536425APerfluoropolyether derivatives, and lubricants and magnetic recording medium using the sameSONY CORP·Filed 1995·Granted Jul 16, 1996·26 cites·13 claims
- 3176US8963128B2Compound for organic thin film transistor and organic thin film transistor using the sameNAKANO YUKI·Filed 2009·Granted Feb 24, 2015·2 cites·11 claims
- 3275US2025309557A1Radio wave absorber, radio wave absorption structure including radio wave absorber, and composition for radio wave absorberIDEMITSU KOSAN CO·Filed 2023·Application pending·0 cites
- 3374US8785915B2Compound for organic thin film transistor and organic thin film transistor using the sameNAKANO YUKI·Filed 2009·Granted Jul 22, 2014·2 cites·12 claims
- 3473US9926508B2Ionic liquid, lubricant, and magnetic recording mediumDEXERIALS CORP·Filed 2015·Granted Mar 27, 2018·1 cites·9 claims
- 3573US5091269AMagnetic recording medium lubricant consisting of an amine salt of carboxylic acid, an amine salt of perfluoroalkyl carboxylic acid or an fluoro amine salt of perfluoro carboxylic acidSONY CORP·Filed 1989·Granted Feb 25, 1992·21 cites·16 claims
- 3672US12240224B2Printing apparatus, method for controlling the same, and mediumBROTHER IND LTD·Filed 2023·Granted Mar 4, 2025·0 cites·16 claims
- 3771US8766243B2Heterocycle-containing asymmetric aromatic compound, compound for organic thin film transistor, and organic thin film transistor using the sameIKEDA YOICHI·Filed 2010·Granted Jul 1, 2014·1 cites·24 claims
- 3870US11932013B2Printing device including carriage having distance sensor for measuring distance between head and printing mediumBROTHER IND LTD·Filed 2022·Granted Mar 19, 2024·0 cites·18 claims
- 3969US12330415B2Liquid droplet ejecting apparatusBROTHER IND LTD·Filed 2023·Granted Jun 17, 2025·0 cites·19 claims
- 4069US5431833ALubricant and magnetic recording medium therewithSONY CORP·Filed 1993·Granted Jul 11, 1995·21 cites·12 claims
- 4169US4540545ADevices for securing fuel assemblies to nuclear reactor pressure vesselsTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Sep 10, 1985·22 cites·4 claims
- 4268US9393796B2Liquid cartridgeBROTHER IND LTD·Filed 2014·Granted Jul 19, 2016·1 cites·20 claims
- 4368US8147047B2Liquid supply apparatuses and liquid containersIWAMURA YUKO·Filed 2009·Granted Apr 3, 2012·3 cites·8 claims
- 4467US12363236B2Image forming apparatus including antenna in coverBROTHER IND LTD·Filed 2023·Granted Jul 15, 2025·0 cites·10 claims
- 4567US10778857B2Image forming apparatusBROTHER IND LTD·Filed 2018·Granted Sep 15, 2020·0 cites·8 claims
- 4667US9550367B2Liquid consuming apparatusBROTHER IND LTD·Filed 2014·Granted Jan 24, 2017·1 cites·26 claims
- 4766US9073329B2Liquid droplet jetting apparatusSUGAHARA HIROTO·Filed 2012·Granted Jul 7, 2015·1 cites·19 claims
- 4865US8876236B2Liquid jetting apparatusKONDO HIROFUMI·Filed 2012·Granted Nov 4, 2014·1 cites·9 claims
- 4965US8038250B2Recording deviceBROTHER IND LTD·Filed 2008·Granted Oct 18, 2011·2 cites·6 claims
- 5065US6777633B2Switch deviceTOKAI RIKA CO LTD·Filed 2003·Granted Aug 17, 2004·13 cites·2 claims
Showing the top 50 of 134 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hirofumi Kondo 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 →