Inventor
YOKOI HITOSHI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “YOKOI HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK SPARK PLUG CO
19 patentsUS6117806ASep 12, 2000
Dielectric material, a method for producing the same and a dielectric resonator device comprising same
NGK SPARK PLUG CO25 citations92
US5898015AApr 27, 1999
Material for absorbing nitrogen oxides comprising hollandite-type complex oxide
NGK SPARK PLUG CO21 citations92
US9476807B2Oct 25, 2016
Microparticle sensor
NGK SPARK PLUG CO8 citations83
US7339455B2Mar 4, 2008
Platinum resistor temperature sensor
NGK SPARK PLUG CO10 citations82
US6770508B2Aug 3, 2004
Electrode for silicon carbide semiconductor, silicon carbide semiconductor element comprising the electrode, and production method therefor
NGK SPARK PLUG CO16 citations82
US6627964B2Sep 30, 2003
Gas sensor
NGK SPARK PLUG CO14 citations82
US4956317ASep 11, 1990
Whisker-reinforced ceramics
NGK SPARK PLUG CO11 citations74
US6380117B2Apr 30, 2002
Dielectric material and process for producing the same
NGK SPARK PLUG CO8 citations73
US6319871B1Nov 20, 2001
Dielectric material
NGK SPARK PLUG CO9 citations73
US6221799B1Apr 24, 2001
Dielectric ceramic material
NGK SPARK PLUG CO10 citations73
US6165927ADec 26, 2000
Dielectric material and process for producing the same
NGK SPARK PLUG CO8 citations73
US6121174ASep 19, 2000
Dielectric material with low temperature coefficient and high quality
NGK SPARK PLUG CO9 citations73
US6001319ADec 14, 1999
Method of removing nitrogen oxides using material for absorbing nitrogen oxides
NGK SPARK PLUG CO11 citations73
US5955046ASep 21, 1999
Catalytic material for removing nitrogen oxides apparatus for treating nitrogen oxides using the material, and method of removing nitrogen oxides
NGK SPARK PLUG CO13 citations73
US9581069B2Feb 28, 2017
Microparticle detection system
NGK SPARK PLUG CO6 citations72
US5128285AJul 7, 1992
Silicon oxynitride sintered body
NGK SPARK PLUG CO4 citations63
US9395273B2Jul 19, 2016
Microparticle detection system
NGK SPARK PLUG CO2 citations62
US7341694B2Mar 11, 2008
Ammonia sensor
NGK SPARK PLUG CO4 citations61
US7408437B2Aug 5, 2008
Resistance element, its precursor, and resistance value adjusting method
NGK SPARK PLUG CO0 citations48