Inventor · disambiguated record
Katsumi Okayama
Also filed as: OKAYAMA KATSUMI
33 granted patents·8 pending applications·590 citations·filing 1992–2018
98Inventor score
Top patents by PatentIndex Score
41 records- 0193US7482977B2Antenna apparatusSONY CORP·Filed 2005·Granted Jan 27, 2009·36 cites·10 claims
- 0292US6403024B1Hydrogen pulverizer for rare-earth alloy magnetic material powder using the pulverizer, and method for producing magnet using the pulverizerSUMITOMO SPEC METALS·Filed 2000·Granted Jun 11, 2002·39 cites·23 claims
- 0390US6491765B2Rare earth magnet and method for manufacturing the sameSUMITOMO SPEC METALS·Filed 2001·Granted Dec 10, 2002·31 cites·17 claims
- 0489US6695985B2Electromagnetic wave suppressor sheetNITTO DENKO CORP·Filed 2002·Granted Feb 24, 2004·56 cites·28 claims
- 0587US6785519B2Portable telephoneSONY CORP·Filed 2001·Granted Aug 31, 2004·37 cites·14 claims
- 0686US6537385B2Rare earth magnet and method for manufacturing the sameSUMITOMO SPEC METALS·Filed 2002·Granted Mar 25, 2003·22 cites·11 claims
- 0785US6773800B2Electromagnetic wave absorbent and method for producing magnetic powder for the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted Aug 10, 2004·43 cites·24 claims
- 0885US6473024B2Electromagnetic wave absorberSONY CORP·Filed 2001·Granted Oct 29, 2002·27 cites·13 claims
- 0984US6474576B1Milling apparatus and milling methodSUMITOMO SPEC METALS·Filed 2000·Granted Nov 5, 2002·19 cites·7 claims
- 1083US6800804B2Epoxy resin composition used for encapsulating semiconductor and semiconductor device using the compositionNITTO DENKO CORP·Filed 2002·Granted Oct 5, 2004·36 cites·16 claims
- 1183US6696015B2Method for producing rare-earth magnetSUMITOMO SPEC METALS·Filed 2001·Granted Feb 24, 2004·17 cites·11 claims
- 1280US6992155B2Method for producing magnetic particle, magnetic particle and magnetic materialSONY CORP·Filed 2002·Granted Jan 31, 2006·16 cites·11 claims
- 1378US7119419B2Detailed description of the presently preferred embodimentsSONY CORP·Filed 2003·Granted Oct 10, 2006·25 cites·6 claims
- 1475US7539510B2Communication apparatus and portable telephoneSONY CORP·Filed 2001·Granted May 26, 2009·17 cites·22 claims
- 1574US6736343B2Milling apparatus and milling methodSUMITOMO SPEC METALS·Filed 2002·Granted May 18, 2004·10 cites·2 claims
- 1674US6464931B1Case for use in sintering process to produce rare-earth magnet, and method for producing rare-earth magnetSUMITOMO SPEC METALS·Filed 2000·Granted Oct 15, 2002·16 cites·16 claims
- 1773US5281250APowder material for rare earth-iron-boron based permanent magnetsSUMITOMO SPEC METALS·Filed 1992·Granted Jan 25, 1994·27 cites·18 claims
- 1872US7336556B2Magnetic non-volatile memory deviceSONY CORP·Filed 2003·Granted Feb 26, 2008·14 cites·19 claims
- 1968US7018485B2Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatusNEOMAX CO LTD·Filed 2002·Granted Mar 28, 2006·13 cites·9 claims
- 2068US6507318B2Antenna apparatus and portable communication apparatusSONY CORP·Filed 2001·Granted Jan 14, 2003·19 cites·10 claims
- 2167US7459769B2Magnetic shield member, magnetic shield structure, and magnetic memory deviceSONY CORP·Filed 2005·Granted Dec 2, 2008·7 cites·9 claims
- 2266US11255257B2TurbochargerTOYOTA JIDOSHOKKI KK·Filed 2018·Granted Feb 22, 2022·1 cites·15 claims
- 2366US7959821B2Electromagnetism suppressing material, electromagnetism suppressing device, and electronic applianceSONY CORP·Filed 2007·Granted Jun 14, 2011·2 cites·20 claims
- 2464US6677881B1Radio wave absorberSONY CORP·Filed 2000·Granted Jan 13, 2004·11 cites·21 claims
- 2560US6503963B2Radiowave absorbent and manufacturing method thereofSONY CORP·Filed 2000·Granted Jan 7, 2003·13 cites·11 claims
- 2657US6464386B1Method and apparatus for mixing powder with liquidSUMITOMO SPEC METALS·Filed 2000·Granted Oct 15, 2002·6 cites·13 claims
- 2756US7745004B2Polymer-coated magnetic particle and magnetic material for absorbing electromagnetic wavesSONY CORP·Filed 2005·Granted Jun 29, 2010·0 cites·8 claims
- 2856US2010207052A1Method for producing magnetic particleSONY CORP·Filed 2010·Application pending·0 cites
- 2955US6670546B2Radio wave absorberSONY CORP·Filed 2001·Granted Dec 30, 2003·9 cites·11 claims
- 3051US6247660B1Process for hydrogen-pulverizing a rare earth metal-based magnetic material, and hydrogen-pulverizing caseSUMITOMO SPEC METALS·Filed 1999·Granted Jun 19, 2001·12 cites·5 claims
- 3151US2008197434A1Magnetic memory deviceSONY CORP·Filed 2008·Application pending·0 cites
- 3249US7034405B2Resin component for encapsulating semiconductor and semiconductor device using itNITTO DENKO CORP·Filed 2002·Granted Apr 25, 2006·3 cites·6 claims
- 3349US6743394B2Case for use in sintering process to produce rare-earth magnet, and method for producing rare-earth magnetSUMITOMO SPEC METALS·Filed 2002·Granted Jun 1, 2004·3 cites·11 claims
- 3445US11231047B2TurbochargerTOYOTA JIDOSHOKKI KK·Filed 2018·Granted Jan 25, 2022·0 cites·8 claims
- 3544US6548014B2Suspension application apparatus and method for manufacturing rare earth magnetSUMITOMO SPEC METALS·Filed 2001·Granted Apr 15, 2003·3 cites·23 claims
- 3644US2006045543A1Electromagnetism suppressing material, electromagnetism suppressing device, and electronic applianceSONY CORP·Filed 2005·Application pending·0 cites
- 3741US2003084964A1Rare earth magnet and method for manufacturing the sameSUMITOMO SPEC METALS·Filed 2002·Application pending·0 cites
- 3840US2005226030A1Magnetic memory deviceKATO YOSHIHIRO·Filed 2003·Application pending·0 cites
- 3939US2010193972A1Spherical sintered ferrite particles, resin composition for semiconductor encapsulation comprising them and semiconductor devices produced by using the sameNITTO DENKO CORP·Filed 2006·Application pending·0 cites
- 4038US2003107025A1Radio-wave absorberFiled 2001·Application pending·0 cites
- 4135US2002166686A1Sheet for electronic parts and method of producing the sameFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →