Inventor · disambiguated record
Shigeaki Takajo
Also filed as: TAKAJO SHIGEAKI
22 granted patents·1 pending application·374 citations·filing 1984–2004
96Inventor score
Top patents by PatentIndex Score
23 records- 0189US6827757B2Magnetite-iron based composite powder, magnetite-iron based powder mixture, method for producing the same, method for remedying polluted soil, water or gases and electromagnetic wave absorberJFE STEEL CORP·Filed 2002·Granted Dec 7, 2004·24 cites·14 claims
- 0283US4954171AComposite alloy steel powder and sintered alloy steelKAWASAKI STEEL CO·Filed 1988·Granted Sep 4, 1990·40 cites·15 claims
- 0381US5308702AIron-based powder composition for use in powder metallurgy, process for its production and process for producing iron-base sintered materialKAWASAKI STEEL CO·Filed 1992·Granted May 3, 1994·41 cites·5 claims
- 0478US4946499AMethod of preparing iron base powder mixture for pmKAWASAKI STEEL CO·Filed 1988·Granted Aug 7, 1990·37 cites·1 claims
- 0577US4964907ASintered bodies and production process thereofKAWASAKI STEEL CO·Filed 1989·Granted Oct 23, 1990·32 cites·5 claims
- 0676US4971755AMethod for preparing powder metallurgical sintered productKAWASAKI STEEL CO·Filed 1989·Granted Nov 20, 1990·33 cites·29 claims
- 0772US5135566AIron base powder mixture and methodKAWASAKI STEEL CO·Filed 1991·Granted Aug 4, 1992·34 cites·10 claims
- 0869US4985309AAlloyed steel powder for powder metallurgyKAWASAKI STEEL CO·Filed 1988·Granted Jan 15, 1991·19 cites·2 claims
- 0968US5279640AMethod of making iron-based powder mixtureKAWASAKI STEEL CO·Filed 1992·Granted Jan 18, 1994·22 cites·4 claims
- 1065US6364962B1Electromagnetic steel sheet having excellent high-frequency magnetic properties and methodFiled 2000·Granted Apr 2, 2002·3 cites·4 claims
- 1162US6322639B1Magnetic steel sheet having excellent magnetic properties and method of producing the sameKAWASAKI STEEL CO·Filed 1999·Granted Nov 27, 2001·15 cites·8 claims
- 1261US4643765ATin-containing ferrous composite powder and method of producing same and tin-containing sintered magnetic materialKAWASAKI STEEL CO·Filed 1985·Granted Feb 17, 1987·14 cites·15 claims
- 1358US6322638B1Electromagnetic steel sheet having excellent high-frequency magnetic propertiesKAWASAKI STEEL CO·Filed 2000·Granted Nov 27, 2001·1 cites·1 claims
- 1458US5476534AIron-based powder mixture and methodKAWASAKI STEEL CO·Filed 1993·Granted Dec 19, 1995·14 cites·7 claims
- 1557US6248185B1Electromagnetic steel sheet having excellent magnetic properties and production method thereofKAWASAKI STEEL CO·Filed 1998·Granted Jun 19, 2001·8 cites·5 claims
- 1654US5067979ASintered bodies and production process thereofKAWASAKI STEEL CO·Filed 1990·Granted Nov 26, 1991·14 cites·5 claims
- 1749US6416592B2Electromagnetic steel sheet having excellent magnetic properties and production method thereofKAWASAKI STEEL CO·Filed 2001·Granted Jul 9, 2002·2 cites·9 claims
- 1843US4561893AAlloy steel powder for high strength sintered partsKAWASAKI STEEL CO·Filed 1984·Granted Dec 31, 1985·5 cites·2 claims
- 1943US2004226404A1Magnetite-iron based composite powder, magnetite-iron based powder mixture, method for producing the same, method for remedying polluted soil, water or gases and electromagnetic wave absorberJFE STEEL CORP A CORP OF JAPAN·Filed 2004·Application pending·0 cites
- 2042US4824734ATin-containing iron base powder and process for makingKAWASAKI STEEL CO·Filed 1984·Granted Apr 25, 1989·6 cites·1 claims
- 2141US6162306AElectromagnetic steel sheet having excellent high-frequency magnetic properities and methodKAWASAKI STEEL CO·Filed 1998·Granted Dec 19, 2000·4 cites·3 claims
- 2235US6207103B1Fe-Cr-Si steel sheets having excellent corrosion resistance and method for manufacturing the sameKAWASAKI STEEL CO·Filed 1998·Granted Mar 27, 2001·3 cites·17 claims
- 2335US4804409AAlloy steel powder for powder metallurgyKAWASAKI STEEL CO·Filed 1987·Granted Feb 14, 1989·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →