Inventor
KURONO HIROKAZU
JP41 patents
⚠️ This page may combine multiple inventors who share the name “KURONO HIROKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK SPARK PLUG CO
28 patentsUS10090646B2Oct 2, 2018
Spark plug
NGK SPARK PLUG CO15 citations83
US10205305B2Feb 12, 2019
Spark plug
NGK SPARK PLUG CO13 citations82
US7808250B2Oct 5, 2010
Test method and apparatus for spark plug insulator
NGK SPARK PLUG CO7 citations74
US9595814B2Mar 14, 2017
Spark plug
NGK SPARK PLUG CO4 citations72
US9590395B2Mar 7, 2017
Spark plug
NGK SPARK PLUG CO3 citations72
US10340667B2Jul 2, 2019
Spark plug
NGK SPARK PLUG CO2 citations70
US9362722B2Jun 7, 2016
Spark plug with improved withstand voltage characteristics and high mechanical strength at high temperatures
NGK SPARK PLUG CO3 citations66
US10637212B2Apr 28, 2020
Method for manufacturing insulator for spark plug
NGK SPARK PLUG CO1 citations62
US9160145B2Oct 13, 2015
Insulator for spark plug and spark plug
NGK SPARK PLUG CO2 citations62
US10193311B2Jan 29, 2019
Spark plug
NGK SPARK PLUG CO1 citations60
US8970098B1Mar 3, 2015
Ignition plug
NGK SPARK PLUG CO3 citations60
US8013278B2Sep 6, 2011
Ceramic heater and glow plug
NGK SPARK PLUG CO4 citations60
US10153619B2Dec 11, 2018
Spark plug
NGK SPARK PLUG CO1 citations52
US9385511B2Jul 5, 2016
Spark plug
NGK SPARK PLUG CO1 citations52
US7938706B2May 10, 2011
Deflection inspecting device for spark plug insulator, deflection inspecting method for spark plug insulator, and manufacturing method for spark plug insulator
NGK SPARK PLUG CO0 citations52
US9373940B2Jun 21, 2016
Spark plug
NGK SPARK PLUG CO1 citations51
US9281662B2Mar 8, 2016
Spark plug
NGK SPARK PLUG CO0 citations51
US9653888B2May 16, 2017
Spark plug
NGK SPARK PLUG CO1 citations49
US9912126B2Mar 6, 2018
Spark plug insulator containing mullite and spark plug including same
NGK SPARK PLUG CO1 citations47
US10751923B2Aug 25, 2020
Spark plug insulator production method, insulator, molding die
NGK SPARK PLUG CO0 citations41
US10084288B2Sep 25, 2018
Spark plug
NGK SPARK PLUG CO0 citations41
US9466951B2Oct 11, 2016
Spark plug
NGK SPARK PLUG CO0 citations41
US10277012B2Apr 30, 2019
Spark plug including a magnetic substance and a conductor disposed thereon
NGK SPARK PLUG CO0 citations40
US10270228B2Apr 23, 2019
Spark plug
NGK SPARK PLUG CO0 citations40
US10879675B2Dec 29, 2020
Spark plug
NGK SPARK PLUG CO0 citations39
US10424901B2Sep 24, 2019
Spark plug
NGK SPARK PLUG CO0 citations39
US9425585B2Aug 23, 2016
Insulator and spark plug
NGK SPARK PLUG CO0 citations39
US8928214B2Jan 6, 2015
Ignition plug
NGK SPARK PLUG CO0 citations39
KURONO HIROKAZU
5 patentsUS8564184B2Oct 22, 2013
Spark plug and process for producing spark plug
KURONO HIROKAZU4 citations61
US8278809B2Oct 2, 2012
Spark plug with alumina-based insulator
KURONO HIROKAZU2 citations61
US8093791B2Jan 10, 2012
Spark plug having particular insulator
KURONO HIROKAZU5 citations61
US8390183B2Mar 5, 2013
Spark plug and method for manufacturing spark plug
KURONO HIROKAZU3 citations59
US9077157B2Jul 7, 2015
Ignition plug having a rear trunk portion that provides sufficient strength
KURONO HIROKAZU0 citations41