JPS5311246A - Spark plug - Google Patents

Spark plug

Info

Publication number
JPS5311246A
JPS5311246A JP8512576A JP8512576A JPS5311246A JP S5311246 A JPS5311246 A JP S5311246A JP 8512576 A JP8512576 A JP 8512576A JP 8512576 A JP8512576 A JP 8512576A JP S5311246 A JPS5311246 A JP S5311246A
Authority
JP
Japan
Prior art keywords
spark plug
upper electrode
conductive
ferrite
semi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8512576A
Other languages
Japanese (ja)
Inventor
Hirotsugu Sawada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8512576A priority Critical patent/JPS5311246A/en
Publication of JPS5311246A publication Critical patent/JPS5311246A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent electric-wave noises by making the upper electrode of the spark plug from ferrite and by forming the conductive or semi-conductive membrane on the surface of the upper electrode.
COPYRIGHT: (C)1978,JPO&Japio
JP8512576A 1976-07-19 1976-07-19 Spark plug Pending JPS5311246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8512576A JPS5311246A (en) 1976-07-19 1976-07-19 Spark plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8512576A JPS5311246A (en) 1976-07-19 1976-07-19 Spark plug

Publications (1)

Publication Number Publication Date
JPS5311246A true JPS5311246A (en) 1978-02-01

Family

ID=13849909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8512576A Pending JPS5311246A (en) 1976-07-19 1976-07-19 Spark plug

Country Status (1)

Country Link
JP (1) JPS5311246A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014207076A (en) * 2013-04-11 2014-10-30 株式会社デンソー Spark plug for internal combustion engine
JP2017117626A (en) * 2015-12-24 2017-06-29 日本特殊陶業株式会社 Spark plug
WO2018037824A1 (en) * 2016-08-25 2018-03-01 日本特殊陶業株式会社 Spark plug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014207076A (en) * 2013-04-11 2014-10-30 株式会社デンソー Spark plug for internal combustion engine
JP2017117626A (en) * 2015-12-24 2017-06-29 日本特殊陶業株式会社 Spark plug
WO2017110015A1 (en) * 2015-12-24 2017-06-29 日本特殊陶業株式会社 Spark plug
WO2018037824A1 (en) * 2016-08-25 2018-03-01 日本特殊陶業株式会社 Spark plug

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