The manufacturing method of the insulator for spark plugs, and a form block

Title:

The manufacturing method of the insulator for spark plugs, and a form block

Document Type and Number:

Japanese Patent JP6270703

Kind Code:

B2

Inventors:

Keiichi Kurono
Hironori Uegaki
Toshiki Honda
Hiroyuki Ma
Kuniji Tanaka
Hiroyuki Kawaji

Application Number:

JP2014249080A

Publication Date:

January 31, 2018

Filing Date:

December 09, 2014

Export Citation:

Assignee:

Nippon Special Ceramics Co., Ltd.

International Classes:

H01T13/20

Domestic Patent References:

JP4092384A
JP2002305069A

Attorney, Agent or Firm:

Fenghwa International Patent Office

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