Inventor

NAKAGAWA KEITA

JP10 patents

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

SHIBATA TSUTOMU

2 patents

US8217563B2Jul 10, 2012

Spark plug for internal combustion engine and method of manufacturing the same

SHIBATA TSUTOMU2 citations60

US8492962B2Jul 23, 2013

Spark plug for internal combustion engine

SHIBATA TSUTOMU0 citations49

NGK SPARK PLUG CO

2 patents

US7713393B2May 11, 2010

Gas sensor and method for manufacturing the same

NGK SPARK PLUG CO3 citations60

US10968881B2Apr 6, 2021

Spark plug

NGK SPARK PLUG CO0 citations46

MITSUBISHI HEAVY IND LTD

1 patent

US6988935B2Jan 24, 2006

Foreign matter removing device and method

MITSUBISHI HEAVY IND LTD11 citations80

NAKAGAWA KEITA

1 patent

US8692921B2Apr 8, 2014

Imaging apparatus and display apparatus capable of changing the angle of a display unit

NAKAGAWA KEITA8 citations78

KURIBAYASHI MAKOTO

1 patent

US8242672B2Aug 14, 2012

Spark plug having a fixation assisting member for the insulator

KURIBAYASHI MAKOTO3 citations59

ENEOS MAT CORPORATION

1 patent

US12018152B2Jun 25, 2024

Polybutadiene composition and method for producing same

ENEOS MAT CORPORATION0 citations55

YOSHIDA HARUKI

1 patent

US8294345B2Oct 23, 2012

Spark plug and resistor composition

YOSHIDA HARUKI0 citations51

SHIMADZU CORP

1 patent

US12598004B2Apr 7, 2026

Underwater optical wireless communication device and underwater optical wireless communication system

SHIMADZU CORP0 citations44