EP1521288A3 - Magnétron pour four à micro-ondes - Google Patents

Magnétron pour four à micro-ondes Download PDF

Info

Publication number: EP1521288A3
Authority: EP; European Patent Office
Prior art keywords: sealing member; metallic sealing; insulating cylinder; magnetron; wall structural
Prior art date: 2003-07-30
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.): Granted

Application number

EP04291898A

Other languages

German (de)

English (en)

Other versions

EP1521288B1 (fr

EP1521288A2 (fr

Inventor

Masatoshi Toshiba Hokuto Elect. Co. Higashi

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.)

Toshiba Hokuto Electronics Corp

Original Assignee

Toshiba Hokuto Electronics Corp

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.)

2003-07-30

Filing date

2004-07-26

Publication date

2008-01-09

2004-07-26 Application filed by Toshiba Hokuto Electronics Corp filed Critical Toshiba Hokuto Electronics Corp

2005-04-06 Publication of EP1521288A2 publication Critical patent/EP1521288A2/fr

2008-01-09 Publication of EP1521288A3 publication Critical patent/EP1521288A3/fr

2008-09-03 Application granted granted Critical

2008-09-03 Publication of EP1521288B1 publication Critical patent/EP1521288B1/fr

2024-07-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
- H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/14—Leading-in arrangements; Seals therefor
- H01J23/15—Means for preventing wave energy leakage structurally associated with tube leading-in arrangements, e.g. filters, chokes, attenuating devices
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
- H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
- H01J23/44—Rod-type coupling devices
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
- H01J23/54—Filtering devices preventing unwanted frequencies or modes to be coupled to, or out of, the interaction circuit; Prevention of high frequency leakage in the environment
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
- H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
- H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
- H01J25/587—Multi-cavity magnetrons

Landscapes

Microwave Tubes (AREA)

EP04291898A 2003-07-30 2004-07-26 Magnétron pour four à micro-ondes Expired - Lifetime EP1521288B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2003203546A JP3944470B2 (ja)	2003-07-30	2003-07-30	電子レンジ用マグネトロン
JP2003203546		2003-07-30

Publications (3)

Publication Number	Publication Date
EP1521288A2 EP1521288A2 (fr)	2005-04-06
EP1521288A3 true EP1521288A3 (fr)	2008-01-09
EP1521288B1 EP1521288B1 (fr)	2008-09-03

Family

ID=34262860

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP04291898A Expired - Lifetime EP1521288B1 (fr)	2003-07-30	2004-07-26	Magnétron pour four à micro-ondes

Country Status (5)

Country	Link
EP (1)	EP1521288B1 (fr)
JP (1)	JP3944470B2 (fr)
KR (1)	KR101010755B1 (fr)
CN (1)	CN100511565C (fr)
DE (1)	DE602004016261D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4898234B2 (ja) *	2006-01-30	2012-03-14	東芝ホクト電子株式会社	マグネトロン
US9000669B2 (en)	2009-02-27	2015-04-07	Panasonic Intellectual Property Management Co., Ltd.	Magnetron and microwave utilization device
JP5676980B2 (ja) *	2010-08-31	2015-02-25	東芝ホクト電子株式会社	マグネトロンおよびその製造方法
CN103531419B (zh) *	2013-10-25	2016-02-10	电子科技大学	一种微波加热用磁控管管芯
JP6723043B2 (ja)	2016-03-25	2020-07-15	東芝ホクト電子株式会社	マグネトロン
EP3447787A1 (fr)	2016-05-17	2019-02-27	Toshiba Hokuto Electronics Corporation	Magnétron

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS61288347A (ja) *	1985-06-14	1986-12-18	Toshiba Corp	電子レンジ用マグネトロン
JPH04167334A (ja) *	1990-10-31	1992-06-15	Toshiba Corp	電子レンジ用マグネトロン
EP1391909A2 (fr) *	2002-07-31	2004-02-25	Matsushita Electric Industrial Co., Ltd.	Magnétron

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0648151A (ja) *	1992-07-24	1994-02-22	Zexel Corp	車両用空調装置

2003
- 2003-07-30 JP JP2003203546A patent/JP3944470B2/ja not_active Expired - Fee Related
2004
- 2004-07-26 DE DE602004016261T patent/DE602004016261D1/de not_active Expired - Lifetime
- 2004-07-26 EP EP04291898A patent/EP1521288B1/fr not_active Expired - Lifetime
- 2004-07-29 KR KR1020040059475A patent/KR101010755B1/ko not_active Expired - Fee Related
- 2004-07-30 CN CNB2004100558029A patent/CN100511565C/zh not_active Expired - Fee Related

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS61288347A (ja) *	1985-06-14	1986-12-18	Toshiba Corp	電子レンジ用マグネトロン
JPH04167334A (ja) *	1990-10-31	1992-06-15	Toshiba Corp	電子レンジ用マグネトロン
EP1391909A2 (fr) *	2002-07-31	2004-02-25	Matsushita Electric Industrial Co., Ltd.	Magnétron

Also Published As

Publication number	Publication date
KR101010755B1 (ko)	2011-01-25
JP2005050572A (ja)	2005-02-24
CN1577701A (zh)	2005-02-09
EP1521288B1 (fr)	2008-09-03
DE602004016261D1 (de)	2008-10-16
CN100511565C (zh)	2009-07-08
EP1521288A2 (fr)	2005-04-06
JP3944470B2 (ja)	2007-07-11
KR20050014696A (ko)	2005-02-07

Legal Events

Date	Code	Title	Description
2005-02-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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2005-04-06	AX	Request for extension of the european patent	Extension state: AL HR LT LV MK
2007-12-07	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
2008-01-09	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
2008-01-09	AX	Request for extension of the european patent	Extension state: AL HR LT LV MK
2008-01-09	RIC1	Information provided on ipc code assigned before grant	Ipc: H01J 25/587 20060101ALI20071204BHEP Ipc: H01J 23/54 20060101AFI20071204BHEP
2008-03-05	17P	Request for examination filed	Effective date: 20080124
2008-04-18	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2008-07-23	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2008-08-01	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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