Inventor

MIYASHITA NAOMICHI

JP16 patents

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

NGK SPARK PLUG CO

5 patents

US8044562B2Oct 25, 2011

Spark plug

NGK SPARK PLUG CO11 citations84

US6724133B2Apr 20, 2004

Spark plug with nickel alloy electrode base material

NGK SPARK PLUG CO18 citations83

US6472801B1Oct 29, 2002

Spark plug with a corrosion impeding layer

NGK SPARK PLUG CO17 citations82

US8344604B2Jan 1, 2013

Spark plug for internal combustion engine

NGK SPARK PLUG CO4 citations62

US8378560B2Feb 19, 2013

Spark plug

NGK SPARK PLUG CO1 citations52

MIYASHITA NAOMICHI

4 patents

US9190812B2Nov 17, 2015

Spark plug and assembling structure thereof

MIYASHITA NAOMICHI7 citations76

US8476817B2Jul 2, 2013

Spark plug

MIYASHITA NAOMICHI3 citations61

US8664844B2Mar 4, 2014

Spark plug having a substantially columnar electrode tip welded to a component thereof

MIYASHITA NAOMICHI0 citations50

US9010765B2Apr 21, 2015

Gasket and automotive component

MIYASHITA NAOMICHI0 citations39

TORII KAZUYOSHI

2 patents

US8410673B2Apr 2, 2013

Spark plug having a ground electrode of specific alloy composition to which a noble metal tip is joined

TORII KAZUYOSHI2 citations61

US8294344B2Oct 23, 2012

Spark plug and weld metal zone

TORII KAZUYOSHI2 citations60

TANAKA TOMOO

1 patent

US8106572B2Jan 31, 2012

Spark plug and process for producing the spark plug

TANAKA TOMOO19 citations82

YOSHIZAKI HIROTOSHI

1 patent

US8766521B2Jul 1, 2014

Spark plug

YOSHIZAKI HIROTOSHI2 citations54

NITERRA CO LTD

1 patent

US12283796B2Apr 22, 2025

Spark plug

NITERRA CO LTD0 citations52

SHIMAMURA TAKUYA

1 patent

US8624475B2Jan 7, 2014

Spark plug

SHIMAMURA TAKUYA1 citations43

YAMADA YUICHI

1 patent

US8664843B2Mar 4, 2014

Spark plug

YAMADA YUICHI0 citations39