JPH0438237Y2 - - Google Patents

Info

Publication number
JPH0438237Y2
JPH0438237Y2 JP9384187U JP9384187U JPH0438237Y2 JP H0438237 Y2 JPH0438237 Y2 JP H0438237Y2 JP 9384187 U JP9384187 U JP 9384187U JP 9384187 U JP9384187 U JP 9384187U JP H0438237 Y2 JPH0438237 Y2 JP H0438237Y2
Authority
JP
Japan
Prior art keywords
sagger
silicon nitride
sintered
mgo
layer
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.)
Expired
Application number
JP9384187U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63201999U (de
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 filed Critical
Priority to JP9384187U priority Critical patent/JPH0438237Y2/ja
Publication of JPS63201999U publication Critical patent/JPS63201999U/ja
Application granted granted Critical
Publication of JPH0438237Y2 publication Critical patent/JPH0438237Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Ceramic Products (AREA)
  • Furnace Charging Or Discharging (AREA)
JP9384187U 1987-06-18 1987-06-18 Expired JPH0438237Y2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9384187U JPH0438237Y2 (de) 1987-06-18 1987-06-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9384187U JPH0438237Y2 (de) 1987-06-18 1987-06-18

Publications (2)

Publication Number Publication Date
JPS63201999U JPS63201999U (de) 1988-12-27
JPH0438237Y2 true JPH0438237Y2 (de) 1992-09-08

Family

ID=30956767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9384187U Expired JPH0438237Y2 (de) 1987-06-18 1987-06-18

Country Status (1)

Country Link
JP (1) JPH0438237Y2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006310129A (ja) * 2005-04-28 2006-11-09 Denso Corp スパークプラグ製造装置およびスパークプラグの製造方法

Also Published As

Publication number Publication date
JPS63201999U (de) 1988-12-27

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