Inventor · disambiguated record
Kiyoshi Hirao
Also filed as: HIRAO KIYOSHI
11 granted patents·4 pending applications·224 citations·filing 1994–2015
91Inventor score
Files withAGENCY IND SCIENCE TECHN8NAT INST OF ADVANCED IND SCIEN3AIST1DENKI KAGAKU KOGYO KK1JAPAN FINE CERAM CO LTD1
Top patents by PatentIndex Score
15 records- 0194US5447894ASintered ceramic article formed mainly of aluminaAGENCY IND SCIENCE TECHN·Filed 1994·Granted Sep 5, 1995·116 cites·9 claims
- 0281US7442661B2Boron carbide based sintered compact and method for preparation thereofAIST·Filed 2006·Granted Oct 28, 2008·7 cites·4 claims
- 0366US5866245ASilicon nitride ceramics having a high reliability and a method for production thereofAGENCY IND SCIENCE TECHN·Filed 1996·Granted Feb 2, 1999·23 cites·18 claims
- 0465US7417002B2Boron carbide based sintered compact and method for preparation thereofNAT INST OF ADVANCED IND SCIEN·Filed 2007·Granted Aug 26, 2008·1 cites·1 claims
- 0563US9938444B2Method for producing silicon nitride substrateJAPAN FINE CERAM CO LTD·Filed 2015·Granted Apr 10, 2018·1 cites·7 claims
- 0658US5674793AMethod for producing a high-strength, high-toughness silicon nitride sinterAGENCY IND SCIENCE TECHN·Filed 1995·Granted Oct 7, 1997·15 cites·6 claims
- 0757US5902542AMethod of producing silicon nitride ceramics having thermal high conductivityAGENCY IND SCIENCE TECHN·Filed 1996·Granted May 11, 1999·16 cites·4 claims
- 0855US5705449AHigh-strength, high-toughness silicon nitride sinterAGENCY IND SCIENCE TECHN·Filed 1996·Granted Jan 6, 1998·13 cites·7 claims
- 0952US2006247120A1Boron carbide based sintered compact and method for preparation thereofDENKI KAGAKU KOGYO KK·Filed 2006·Application pending·0 cites
- 1051US5837633AMethod for production of aluminum nitride sintered body and aluminum nitride powderAGENCY IND SCIENCE TECHN·Filed 1996·Granted Nov 17, 1998·15 cites·20 claims
- 1144US5935888APorous silicon nitride with rodlike grains orientedAGENCY IND SCIENCE TECHN·Filed 1997·Granted Aug 10, 1999·9 cites·3 claims
- 1242US5968426AMethod of producing porous silicon nitride ceramics having high strength and low thermal conductivityAGENCY IND SCIENCE TECHN·Filed 1997·Granted Oct 19, 1999·8 cites·2 claims
- 1342US2005059541A1Boron carbide based sintered compact and method for preparation thereofFiled 2002·Application pending·0 cites
- 1435US2004033394A1Abrasion resistant aluminum oxide member and method of production thereofNAT INST OF ADVANCED IND SCIEN·Filed 2003·Application pending·0 cites
- 1535US2003136057A1Polishing material for silicon nitride and sialon ceramicsNAT INST OF ADVANCED IND SCIEN·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →