P

Inventor

HIRAO KIYOSHI

JP11 patents
⚠️ This page may combine multiple inventors who share the name “HIRAO KIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AGENCY IND SCIENCE TECHN

8 patents
US5447894ASep 5, 1995

Sintered ceramic article formed mainly of alumina

AGENCY IND SCIENCE TECHN116 citations94
US5866245AFeb 2, 1999

Silicon nitride ceramics having a high reliability and a method for production thereof

AGENCY IND SCIENCE TECHN23 citations90
US5902542AMay 11, 1999

Method of producing silicon nitride ceramics having thermal high conductivity

AGENCY IND SCIENCE TECHN16 citations72
US5837633ANov 17, 1998

Method for production of aluminum nitride sintered body and aluminum nitride powder

AGENCY IND SCIENCE TECHN15 citations72
US5968426AOct 19, 1999

Method of producing porous silicon nitride ceramics having high strength and low thermal conductivity

AGENCY IND SCIENCE TECHN8 citations71
US5935888AAug 10, 1999

Porous silicon nitride with rodlike grains oriented

AGENCY IND SCIENCE TECHN9 citations71
US5705449AJan 6, 1998

High-strength, high-toughness silicon nitride sinter

AGENCY IND SCIENCE TECHN13 citations71
US5674793AOct 7, 1997

Method for producing a high-strength, high-toughness silicon nitride sinter

AGENCY IND SCIENCE TECHN15 citations71

AIST

1 patent
US7442661B2Oct 28, 2008

Boron carbide based sintered compact and method for preparation thereof

AIST7 citations70

NAT INST OF ADVANCED IND SCIEN

1 patent
US7417002B2Aug 26, 2008

Boron carbide based sintered compact and method for preparation thereof

NAT INST OF ADVANCED IND SCIEN1 citations48

JAPAN FINE CERAM CO LTD

1 patent
US9938444B2Apr 10, 2018

Method for producing silicon nitride substrate

JAPAN FINE CERAM CO LTD1 citations44