Inventor
NIIHARA KOICHI
39 patents
⚠️ This page may combine multiple inventors who share the name “NIIHARA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RES INST IRON STEEL
6 patentsUS4118539AOct 3, 1978
Super hard-highly pure silicon nitrides having a preferred crystal face orientation
RES INST IRON STEEL47 citations96
US4340568AJul 20, 1982
Super hard highly pure silicon nitrides and a process and apparatus for producing the same
RES INST IRON STEEL15 citations82
US4312921AJan 26, 1982
Super hard-highly pure silicon nitrides
RES INST IRON STEEL13 citations82
US4312924AJan 26, 1982
Super hard highly pure silicon nitrides
RES INST IRON STEEL1 citations63
US4279689AJul 21, 1981
Process for producing super hard-highly pure silicon nitrides
RES INST IRON STEEL1 citations63
US4224296ASep 23, 1980
Super hard-highly pure silicon nitrides, and a process and apparatus for producing the same
RES INST IRON STEEL0 citations52
MATSUSHITA ELECTRIC WORKS LTD
6 patentsUS5863850AJan 26, 1999
Process of making zirconia based ceramic material
MATSUSHITA ELECTRIC WORKS LTD70 citations94
US5525560AJun 11, 1996
Zirconia based composite material and method of manufacturing the same product
MATSUSHITA ELECTRIC WORKS LTD48 citations92
US5854158ADec 29, 1998
ZrO2 based ceramic material and method of producing the same
MATSUSHITA ELECTRIC WORKS LTD25 citations91
US5728636AMar 17, 1998
Zirconia based ceramic material
MATSUSHITA ELECTRIC WORKS LTD44 citations91
US5389590AFeb 14, 1995
Method of fabricating a sintered ceramic composite
MATSUSHITA ELECTRIC WORKS LTD6 citations73
US5296301AMar 22, 1994
Sintered ceramic-metal composite product and method of fabricating the same
MATSUSHITA ELECTRIC WORKS LTD8 citations73
SUMITOMO ELECTRIC INDUSTRIES
4 patentsUS5750449AMay 12, 1998
Ceramic porous bodies and method of producing the same
SUMITOMO ELECTRIC INDUSTRIES27 citations93
US5759460AJun 2, 1998
Ceramic porous bodies and method of producing the same
SUMITOMO ELECTRIC INDUSTRIES8 citations74
US5459111AOct 17, 1995
Composite ceramics sintered body
SUMITOMO ELECTRIC INDUSTRIES8 citations74
US5585055ADec 17, 1996
Method of manufacturing a composite ceramics sintered body
SUMITOMO ELECTRIC INDUSTRIES2 citations63
NIIHARA KOICHI
4 patentsUS5418196AMay 23, 1995
Sintered composite boron carbide body and production process thereof
NIIHARA KOICHI25 citations92
US6558577B1May 6, 2003
Deformable conductive elastomer and manufacturing method thereof
NIIHARA KOICHI27 citations87
US5637269AJun 10, 1997
Process for forming a sintered composite boron carbide body
NIIHARA KOICHI12 citations73
US5173459ADec 22, 1992
Si3 N4 -A12 O3 composite sintered bodies and method of producing the same
NIIHARA KOICHI2 citations62
MITSUBISHI MATERIALS CORP
3 patentsUS5403795AApr 4, 1995
Platelet α-Al2 O3 based ceramic composite
MITSUBISHI MATERIALS CORP22 citations93
US5322823AJun 21, 1994
Ceramic composites and process for its production
MITSUBISHI MATERIALS CORP22 citations90
US5686366ANov 11, 1997
Process for producing platelet α-Al2 O3 based ceramic composite
MITSUBISHI MATERIALS CORP11 citations74
NGK INSULATORS LTD
3 patentsUS7833924B2Nov 16, 2010
Yttrium oxide-containing material, component of semiconductor manufacturing equipment, and method of producing yttrium oxide-containing material
NGK INSULATORS LTD14 citations84
US4889834ADec 26, 1989
SiC-Al2 O3 composite sintered bodies and method of producing the same
NGK INSULATORS LTD7 citations73
US4889835ADec 26, 1989
SiC-Al2 O3 composite sintered bodies and method of producing the same
NGK INSULATORS LTD8 citations73