Inventor · disambiguated record
Kiyoshi Yamaguchi
Also filed as: MAKI NAOKI · YAMAGUCHI KIYOSHI
65 granted patents·19 pending applications·958 citations·filing 1976–2019
99Inventor score
Top patents by PatentIndex Score
84 records- 0195US7364253B2Liquid drop jet head, ink cartridge and ink jet recording apparatusRICOH KK·Filed 2005·Granted Apr 29, 2008·20 cites·18 claims
- 0294US6682185B2Liquid drop jet head, ink cartridge and ink jet recording apparatusRICOH KK·Filed 2002·Granted Jan 27, 2004·51 cites·25 claims
- 0393US6849983B2Rotary machine having bypath magnetic path blocking magnetic barrierHITACHI LTD·Filed 2001·Granted Feb 1, 2005·56 cites·17 claims
- 0493US4996496ABending magnetHITACHI LTD·Filed 1988·Granted Feb 26, 1991·138 cites·10 claims
- 0593USD302793SCombined container closure and spoonYAMAGUCHI KIYOSHI·Filed 1986·Granted Aug 15, 1989·42 cites·1 claims
- 0691US6913348B2Liquid drop jet head, ink cartridge and ink jet recording apparatusRICOH KK·Filed 2003·Granted Jul 5, 2005·32 cites·29 claims
- 0789US8197048B2Image forming apparatusYAMANAKA KUNIHIRO·Filed 2007·Granted Jun 12, 2012·14 cites·11 claims
- 0888US8042458B2Heating cooker and tray thereforSHARP KK·Filed 2006·Granted Oct 25, 2011·19 cites·9 claims
- 0987US7764006B2Piezoelectric actuator and manufacturing method thereof, liquid ejecting head, and image forming apparatusRICOH KK·Filed 2007·Granted Jul 27, 2010·8 cites·7 claims
- 1086US5914168AMagnetic recording medium and magnetic disc deviceFUJITSU LTD·Filed 1995·Granted Jun 22, 1999·59 cites·28 claims
- 1185US8556396B2Inkjet head and inkjet recording deviceKATO MASAKI·Filed 2012·Granted Oct 15, 2013·4 cites·6 claims
- 1285US8414110B2Inkjet headKATO MASAKI·Filed 2011·Granted Apr 9, 2013·4 cites·6 claims
- 1384US6729716B2Liquid drop jet head and ink jet recording apparatusRICOH KK·Filed 2002·Granted May 4, 2004·26 cites·34 claims
- 1484US4465622AMethod for purifying interferonMOCHIDA PHARM CO LTD·Filed 1982·Granted Aug 14, 1984·42 cites·19 claims
- 1583US6853388B2Network management equipment and communication path setting methodTOSHIBA KK·Filed 2001·Granted Feb 8, 2005·58 cites·61 claims
- 1679US4697796ASuspension deviceTOKICO LTD·Filed 1985·Granted Oct 6, 1987·41 cites·10 claims
- 1778US4817023ASlide magazine provided with memory means for slide film printing systemFUJI PHOTO FILM CO LTD·Filed 1986·Granted Mar 28, 1989·15 cites·4 claims
- 1877US8802918B2Water-absorbent sheet compositionFUKUDOME SHINYA·Filed 2009·Granted Aug 12, 2014·5 cites·21 claims
- 1977US5952691ANon-volatile electrically alterable semiconductor memory deviceRICOH KK·Filed 1998·Granted Sep 14, 1999·42 cites·12 claims
- 2076US8047637B2Piezoelectric actuator and manufacturing method thereof, liquid ejecting head, and image forming apparatusRICOH CO LTD·Filed 2010·Granted Nov 1, 2011·2 cites·11 claims
- 2175US7665830B2Liquid discharge head, liquid discharge device, and image forming deviceRICOH KK·Filed 2005·Granted Feb 23, 2010·4 cites·14 claims
- 2274US4085343ARotor for a rotary electrical machine having a superconductive field windingHITACHI LTD·Filed 1976·Granted Apr 18, 1978·29 cites·12 claims
- 2373US8708459B2Droplet ejection head, method of manufacturing droplet ejection head, and droplet ejection apparatusNISHIMURA HIDEAKI·Filed 2012·Granted Apr 29, 2014·2 cites·8 claims
- 2473US8491103B2Inkjet headKATO MASAKI·Filed 2012·Granted Jul 23, 2013·2 cites·13 claims
- 2572US6509108B2Magnetic recording medium and a magnetic disc apparatus, with a CRP or CrMoP reinforcing coat layerFUJITSU LTD·Filed 2001·Granted Jan 21, 2003·9 cites·13 claims
- 2671US12054586B2System and method for manufacturing polyamic acid, and system and method for manufacturing polyimideKANEKA CORP·Filed 2019·Granted Aug 6, 2024·0 cites·8 claims
- 2771US8468569B2Content delivery system and method, and server apparatus and receiving apparatus used in this content delivery systemOSAKI YOSHIRO·Filed 2008·Granted Jun 18, 2013·4 cites·19 claims
- 2871US4171494AElectric rotary machine having superconducting rotorHITACHI LTD·Filed 1977·Granted Oct 16, 1979·24 cites·7 claims
- 2969US5550391ALight-emitting diode and light-emitting diode arrayRICOH KK·Filed 1994·Granted Aug 27, 1996·28 cites·12 claims
- 3067US8657418B2Inkjet head and recording deviceKATO MASAKI·Filed 2012·Granted Feb 25, 2014·1 cites·5 claims
- 3166US8646870B2Inkjet recording apparatusNISHIMURA HIDEAKI·Filed 2012·Granted Feb 11, 2014·1 cites·8 claims
- 3265US8777382B2Inkjet head and image forming deviceKATO MASAKI·Filed 2012·Granted Jul 15, 2014·1 cites·12 claims
- 3365US4448042ACoolant supply and discharge device for superconductive rotorHITACHI LTD·Filed 1982·Granted May 15, 1984·19 cites·2 claims
- 3463US4560182ABicycleYAMAGUCHI KIYOSHI·Filed 1984·Granted Dec 24, 1985·18 cites·4 claims
- 3561US9013248B2Filter circuitYAMAGUCHI KIYOSHI·Filed 2012·Granted Apr 21, 2015·1 cites·4 claims
- 3660US4876567ACRT printing method and apparatus for making a print of an image with lettersFUJI PHOTO FILM CO LTD·Filed 1987·Granted Oct 24, 1989·7 cites·21 claims
- 3760US4392293AMethod of assembling combination shock absorber and air springTOKICO LTD·Filed 1980·Granted Jul 12, 1983·18 cites·3 claims
- 3858US7103845B2Terminal apparatus for operator and communication path setting methodTOSHIBA KK·Filed 2001·Granted Sep 5, 2006·8 cites·27 claims
- 3957US9233519B2Water-absorbent sheet structureYAMAGUCHI KIYOSHI·Filed 2010·Granted Jan 12, 2016·3 cites·13 claims
- 4057US8894185B2Liquid ejection head, ink cartridge, and image forming apparatusYAMANAKA KUNIHIRO·Filed 2008·Granted Nov 25, 2014·1 cites·14 claims
- 4156US4602865AMethod for sorting out slide films in a magazine systemFUJI PHOTO FILM CO LTD·Filed 1984·Granted Jul 29, 1986·5 cites·1 claims
- 4253US2008138366A1CosmeticsSUMITOMO SEIKA CHEMICALS·Filed 2006·Application pending·0 cites
- 4351US2008291578A1Substrate, magnetic recording medium and manufacturing method thereof, and magnetic storage apparatusFUJITSU LTD·Filed 2008·Application pending·0 cites
- 4450US2010101555A1Heating cookerYAMAGUCHI KIYOSHI·Filed 2006·Application pending·0 cites
- 4549US4548900AMethod of interferon productionMOCHIDA PHARM CO LTD·Filed 1983·Granted Oct 22, 1985·8 cites·25 claims
- 4649US4389585ASuperconductive rotorHITACHI LTD·Filed 1981·Granted Jun 21, 1983·11 cites·9 claims
- 4748US5067993AMagnetic core material made of fe-co base alloy for high frequenciesMITSUBISHI MATERIALS CORP·Filed 1988·Granted Nov 26, 1991·8 cites·27 claims
- 4848US4680261AProcess for producing interferonMOCHIDA PHARM CO LTD·Filed 1984·Granted Jul 14, 1987·10 cites·11 claims
- 4947US8878105B2Steam cookerYAMAGUCHI KIYOSHI·Filed 2005·Granted Nov 4, 2014·0 cites·9 claims
- 5047US2007187388A1Steam generating device and steam cooking apparatus provided therewithSHARP KK·Filed 2004·Application pending·0 cites
Showing the top 50 of 84 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →