JPS5223532A - Salt bath* electrical heating nitriding of steel subsequent to quenching - Google Patents

Salt bath* electrical heating nitriding of steel subsequent to quenching

Info

Publication number
JPS5223532A
JPS5223532A JP9966875A JP9966875A JPS5223532A JP S5223532 A JPS5223532 A JP S5223532A JP 9966875 A JP9966875 A JP 9966875A JP 9966875 A JP9966875 A JP 9966875A JP S5223532 A JPS5223532 A JP S5223532A
Authority
JP
Japan
Prior art keywords
quenching
electrical heating
salt bath
heating nitriding
steel subsequent
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
JP9966875A
Other languages
Japanese (ja)
Inventor
Shinzou Satou
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.)
SATO SHINZOU
Original Assignee
SATO SHINZOU
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 SATO SHINZOU filed Critical SATO SHINZOU
Priority to JP9966875A priority Critical patent/JPS5223532A/en
Publication of JPS5223532A publication Critical patent/JPS5223532A/en
Pending legal-status Critical Current

Links

JP9966875A 1975-08-16 1975-08-16 Salt bath* electrical heating nitriding of steel subsequent to quenching Pending JPS5223532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9966875A JPS5223532A (en) 1975-08-16 1975-08-16 Salt bath* electrical heating nitriding of steel subsequent to quenching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9966875A JPS5223532A (en) 1975-08-16 1975-08-16 Salt bath* electrical heating nitriding of steel subsequent to quenching

Publications (1)

Publication Number Publication Date
JPS5223532A true JPS5223532A (en) 1977-02-22

Family

ID=14253401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9966875A Pending JPS5223532A (en) 1975-08-16 1975-08-16 Salt bath* electrical heating nitriding of steel subsequent to quenching

Country Status (1)

Country Link
JP (1) JPS5223532A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5712488A (en) * 1980-06-18 1982-01-22 Ibm Non-volatile cell circuit
US6424008B1 (en) 1992-10-30 2002-07-23 Semiconductor Energy Laboratory Co., Ltd. Memory device having a floating gate
US7692232B2 (en) 2006-03-21 2010-04-06 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US7723773B2 (en) 2006-02-10 2010-05-25 Semiconductor Energy Laboratory Co., Ltd Nonvolatile semiconductor storage device and manufacturing method thereof
US7760552B2 (en) 2006-03-31 2010-07-20 Semiconductor Energy Laboratory Co., Ltd. Verification method for nonvolatile semiconductor memory device
US7786526B2 (en) 2006-03-31 2010-08-31 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US7842992B2 (en) 2006-03-31 2010-11-30 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device having floating gate that includes two layers
US8022460B2 (en) 2006-03-31 2011-09-20 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US8212302B2 (en) 2006-03-21 2012-07-03 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US8227863B2 (en) 2006-03-21 2012-07-24 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016039B2 (en) * 1980-06-18 1985-04-23 インタ−ナシヨナル・ビジスネ・マシ−ンズ・コ−ポレ−シヨン non-volatile cell circuit
JPS5712488A (en) * 1980-06-18 1982-01-22 Ibm Non-volatile cell circuit
US6424008B1 (en) 1992-10-30 2002-07-23 Semiconductor Energy Laboratory Co., Ltd. Memory device having a floating gate
US7622343B2 (en) 1992-10-30 2009-11-24 Semiconductor Energy Laboratory Co., Ltd. Laser processing method, method for forming a flash memory, insulated gate semiconductor device and method for forming the same
US7723773B2 (en) 2006-02-10 2010-05-25 Semiconductor Energy Laboratory Co., Ltd Nonvolatile semiconductor storage device and manufacturing method thereof
US8338257B2 (en) 2006-02-10 2012-12-25 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor storage device and manufacturing method thereof
US8212302B2 (en) 2006-03-21 2012-07-03 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US7692232B2 (en) 2006-03-21 2010-04-06 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US8227863B2 (en) 2006-03-21 2012-07-24 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US7760552B2 (en) 2006-03-31 2010-07-20 Semiconductor Energy Laboratory Co., Ltd. Verification method for nonvolatile semiconductor memory device
US8022460B2 (en) 2006-03-31 2011-09-20 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device
US8018776B2 (en) 2006-03-31 2011-09-13 Semiconductor Energy Laboratory Co., Ltd. Verification method for nonvolatile semiconductor memory device
US7842992B2 (en) 2006-03-31 2010-11-30 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device having floating gate that includes two layers
US7786526B2 (en) 2006-03-31 2010-08-31 Semiconductor Energy Laboratory Co., Ltd. Nonvolatile semiconductor memory device

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