Inventor · disambiguated record
Koichi Niihara
Also filed as: NIIHARA KOICHI
35 granted patents·2 pending applications·666 citations·filing 1977–2008
98Inventor score
Files withMATSUSHITA ELECTRIC WORKS LTD6RES INST IRON STEEL6NIIHARA KOICHI4SUMITOMO ELECTRIC INDUSTRIES4MITSUBISHI MATERIALS CORP3
Top patents by PatentIndex Score
37 records- 0195US4118539ASuper hard-highly pure silicon nitrides having a preferred crystal face orientationRES INST IRON STEEL·Filed 1977·Granted Oct 3, 1978·47 cites·4 claims
- 0289US7833924B2Yttrium oxide-containing material, component of semiconductor manufacturing equipment, and method of producing yttrium oxide-containing materialNGK INSULATORS LTD·Filed 2008·Granted Nov 16, 2010·14 cites·15 claims
- 0388US6787500B2Catalyst particles and method of manufacturing the sameDENSO CORP·Filed 2002·Granted Sep 7, 2004·37 cites·17 claims
- 0488US5863850AProcess of making zirconia based ceramic materialMATSUSHITA ELECTRIC WORKS LTD·Filed 1997·Granted Jan 26, 1999·70 cites·16 claims
- 0585US5376599ACarbon fiber reinforced silicon nitride based nanocomposite material and method for preparing sameNORITAKE CO LTD·Filed 1992·Granted Dec 27, 1994·42 cites·17 claims
- 0683US5525560AZirconia based composite material and method of manufacturing the same productMATSUSHITA ELECTRIC WORKS LTD·Filed 1995·Granted Jun 11, 1996·48 cites·41 claims
- 0783US4746635AHigh strength and high hardness alumina-zirconia-silicon carbide sintered ceramic composite and its manufacturing processRIKEN KK·Filed 1986·Granted May 24, 1988·40 cites·11 claims
- 0881US5728636AZirconia based ceramic materialMATSUSHITA ELECTRIC WORKS LTD·Filed 1995·Granted Mar 17, 1998·44 cites·3 claims
- 0979US6558577B1Deformable conductive elastomer and manufacturing method thereofNIIHARA KOICHI·Filed 2000·Granted May 6, 2003·27 cites·6 claims
- 1077US5418196ASintered composite boron carbide body and production process thereofNIIHARA KOICHI·Filed 1991·Granted May 23, 1995·25 cites·5 claims
- 1176US5750449ACeramic porous bodies and method of producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1996·Granted May 12, 1998·27 cites·2 claims
- 1275US5403795APlatelet α-Al2 O3 based ceramic compositeMITSUBISHI MATERIALS CORP·Filed 1993·Granted Apr 4, 1995·22 cites·4 claims
- 1374US7323432B2Catalyst assemblyDENSO CORP·Filed 2003·Granted Jan 29, 2008·19 cites·17 claims
- 1473US4312921ASuper hard-highly pure silicon nitridesRES INST IRON STEEL·Filed 1978·Granted Jan 26, 1982·13 cites·4 claims
- 1572US4340568ASuper hard highly pure silicon nitrides and a process and apparatus for producing the sameRES INST IRON STEEL·Filed 1980·Granted Jul 20, 1982·15 cites·1 claims
- 1671US5130277ACeramic composite material and process of manufacturing thereofMITSUBISHI MINING & CEMENT CO·Filed 1989·Granted Jul 14, 1992·22 cites·3 claims
- 1769US5322823ACeramic composites and process for its productionMITSUBISHI MATERIALS CORP·Filed 1993·Granted Jun 21, 1994·22 cites·6 claims
- 1868US5854158AZrO2 based ceramic material and method of producing the sameMATSUSHITA ELECTRIC WORKS LTD·Filed 1997·Granted Dec 29, 1998·25 cites·21 claims
- 1968US5134097ASilicon nitride-silicon carbide composite material and process for production thereofMITSUBISHI GAS CHEMICAL CO·Filed 1991·Granted Jul 28, 1992·21 cites·9 claims
- 2057US5686366AProcess for producing platelet α-Al2 O3 based ceramic compositeMITSUBISHI MATERIALS CORP·Filed 1994·Granted Nov 11, 1997·11 cites·14 claims
- 2154US5637269AProcess for forming a sintered composite boron carbide bodyNIIHARA KOICHI·Filed 1995·Granted Jun 10, 1997·12 cites·2 claims
- 2250US5459111AComposite ceramics sintered bodySUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Oct 17, 1995·8 cites·4 claims
- 2349US5296301ASintered ceramic-metal composite product and method of fabricating the sameMATSUSHITA ELECTRIC WORKS LTD·Filed 1991·Granted Mar 22, 1994·8 cites·8 claims
- 2448US5759460ACeramic porous bodies and method of producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Jun 2, 1998·8 cites·9 claims
- 2545US4889835ASiC-Al2 O3 composite sintered bodies and method of producing the sameNGK INSULATORS LTD·Filed 1988·Granted Dec 26, 1989·8 cites·8 claims
- 2644US6313051B1Method for manufacture of composite fiberAGENCEY OF IND SCIENCE AND TEC·Filed 2000·Granted Nov 6, 2001·1 cites·4 claims
- 2744US5389590AMethod of fabricating a sintered ceramic compositeMATSUSHITA ELECTRIC WORKS LTD·Filed 1994·Granted Feb 14, 1995·6 cites·14 claims
- 2843US5854157ACeramic compositeAGENCY IND SCIENCE TECHN·Filed 1997·Granted Dec 29, 1998·8 cites·8 claims
- 2943US4889834ASiC-Al2 O3 composite sintered bodies and method of producing the sameNGK INSULATORS LTD·Filed 1988·Granted Dec 26, 1989·7 cites·1 claims
- 3036US2004005406A1Metal coating method and metal-coated materialFiled 2003·Application pending·0 cites
- 3134US2002112785A1High energy nanocomposite permanent magnetFiled 2001·Application pending·0 cites
- 3233US6054094AMethod for manufacture composite fiberAGENCY IND SCIENCE TECHN·Filed 1997·Granted Apr 25, 2000·3 cites·4 claims
- 3333US5585055AMethod of manufacturing a composite ceramics sintered bodySUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Dec 17, 1996·2 cites·12 claims
- 3433US4312924ASuper hard highly pure silicon nitridesRES INST IRON STEEL·Filed 1980·Granted Jan 26, 1982·1 cites·8 claims
- 3533US4279689AProcess for producing super hard-highly pure silicon nitridesRES INST IRON STEEL·Filed 1978·Granted Jul 21, 1981·1 cites·4 claims
- 3631US5173459ASi3 N4 -A12 O3 composite sintered bodies and method of producing the sameNIIHARA KOICHI·Filed 1990·Granted Dec 22, 1992·2 cites·5 claims
- 3730US4224296ASuper hard-highly pure silicon nitrides, and a process and apparatus for producing the sameRES INST IRON STEEL·Filed 1978·Granted Sep 23, 1980·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →