DE69108577T2 - Broadband wave absorber. - Google Patents

Broadband wave absorber.

Info

Publication number: DE69108577T2
Authority: DE; Germany
Prior art keywords: wave absorber; broadband wave; broadband; absorber; wave
Prior art date: 1990-01-25
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 - Fee Related

Application number

DE1991608577

Other languages

German (de)

Other versions

DE69108577D1 (en

Inventor

Yoshiyuki Naito

Michiharu Takahashi

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.)

WIEDEMANN, CARL, 25813 HUSUM, DE

Original Assignee

Naito Yoshuki

Michiharu Takahashi

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.)

1990-01-25

Filing date

1991-01-23

Publication date

1996-01-11

1990-02-02 Priority claimed from JP2023818A external-priority patent/JPH03228398A/en

1990-06-08 Priority claimed from JP2150690A external-priority patent/JPH077886B2/en

1990-06-20 Priority claimed from JP2162403A external-priority patent/JP2509369B2/en

1991-01-23 Application filed by Naito Yoshuki, Michiharu Takahashi filed Critical Naito Yoshuki

1995-05-11 Publication of DE69108577D1 publication Critical patent/DE69108577D1/en

1996-01-11 Application granted granted Critical

1996-01-11 Publication of DE69108577T2 publication Critical patent/DE69108577T2/en

2011-01-24 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
- H01Q17/008—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems with a particular shape

DE1991608577 1990-01-25 1991-01-23 Broadband wave absorber. Expired - Fee Related DE69108577T2 (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP1579890		1990-01-25
JP2023818A JPH03228398A (en)	1990-02-02	1990-02-02	Ferrite radio wave absorber
JP2150690A JPH077886B2 (en)	1990-01-25	1990-06-08	Electromagnetic wave absorber using block type magnetic material
JP2162403A JP2509369B2 (en)	1990-06-20	1990-06-20	Broadband radio wave absorber

Publications (2)

Publication Number	Publication Date
DE69108577D1 DE69108577D1 (en)	1995-05-11
DE69108577T2 true DE69108577T2 (en)	1996-01-11

Family

ID=27456451

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE1991608577 Expired - Fee Related DE69108577T2 (en)	1990-01-25	1991-01-23	Broadband wave absorber.

Country Status (3)

Country	Link
EP (1)	EP0439337B1 (en)
KR (1)	KR0130755B1 (en)
DE (1)	DE69108577T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB9412957D0 (en) *	1994-06-28	1994-09-28	Marconi Gec Ltd	Energy absorbing arrangements
JP2681450B2 (en) *	1994-07-25	1997-11-26	道晴高橋	Broadband radio wave absorber
JPH08204379A (en) *	1995-01-24	1996-08-09	Mitsubishi Cable Ind Ltd	Radio wave absorber
GB9900034D0 (en)	1999-01-04	1999-02-24	Marconi Electronic Syst Ltd	Structure with magnetic properties
GB2380860A (en) *	2001-10-08	2003-04-16	Marconi Caswell Ltd	Structures with magnetic properties
CN1838345A (en) *	2005-03-22	2006-09-27	株式会社东芝	Antenna device and method for manufacturing antenna device
EA017646B1 (en)	2007-07-09	2013-02-28	Клеаруотер Холдингс, Лтд.	Electromagnetic machine of modular construction with independent removable coils and self sustained passive magnetic bearings
KR101944959B1 (en) *	2017-10-12	2019-02-01	국방과학연구소	Stealth structure manufactured using electromagnetic wave absorber
CN107809006A (en) *	2017-10-22	2018-03-16	南京理工大学	Transparent ultra-wideband microwave wave absorbing device based on transparent conductive film

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE540736A (en) *	1953-03-28
GB1170420A (en) *	1966-12-30	1969-11-12	Eltro Gmbh	Improvements in or relating to a Spatial Absorber for Electromagnetic Waves
US4118704A (en) *	1976-04-07	1978-10-03	Tdk Electronics Co., Ltd.	Electromagnetic wave-absorbing wall

1991
- 1991-01-23 EP EP91300505A patent/EP0439337B1/en not_active Expired - Lifetime
- 1991-01-23 DE DE1991608577 patent/DE69108577T2/en not_active Expired - Fee Related
- 1991-01-23 KR KR1019910001084A patent/KR0130755B1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE69108577D1 (en)	1995-05-11
EP0439337A3 (en)	1991-11-06
KR0130755B1 (en)	1998-04-14
EP0439337B1 (en)	1995-04-05
EP0439337A2 (en)	1991-07-31

Legal Events

Date	Code	Title	Description
1996-05-02	8364	No opposition during term of opposition
2003-09-25	8327	Change in the person/name/address of the patent owner	Owner name: WIEDEMANN, CARL, 25813 HUSUM, DE
2003-09-25	8381	Inventor (new situation)	Inventor name: NAITO, YOSHIYUKI, YAMATO, KANAGAWA, JP Inventor name: TAKASHI, MICHIHARU, YACHIYO, CHIBA, JP
2005-11-17	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE69113962T2 (en)	1996-05-15	MAXIMUM RATIO-DIVERSITY COMBINATION TECHNOLOGY.
DE69112037T2 (en)	1996-01-11	WAITTRÄGER.
NO911085L (en)	1991-09-30	NOEDPUSTEANORDNING.
DE69111876D1 (en)	1995-09-14	Ophthalmometer.
DE59104521D1 (en)	1995-03-16	POLKERN.
FI86263B (en)	1992-04-30	SKAER- OCH SLIPANORDNING FOER EN GLASSKIVKANT.
FI87009B (en)	1992-07-31	SKOVELHJUL FOER CENTRIFUGALPUMPAR.
DE69115177T2 (en)	1996-07-18	Antenna arrangement.
DE69108577T2 (en)	1996-01-11	Broadband wave absorber.
DE69112434T2 (en)	1996-02-29	Curve generator.
FI923652A (en)	1992-08-14	FLYTANDE RENGOERINGSPRODUKTER.
DE69100071D1 (en)	1993-06-09	KAEFIGMUTTER.
DE69110482T2 (en)	1996-03-21	Magnetostatic wave arrangement.
DE69110728D1 (en)	1995-08-03	8-sulfamylmethylene-2-aminotetraline.
DE59104606D1 (en)	1995-03-23	Area antenna.
FR2662288B1 (en)	1994-04-01	PANCARTE STRUCTURE.
FI913176A0 (en)	1991-06-28	ADAPTIVE TUNNELSOERJNING.
DE59103525D1 (en)	1994-12-22	Honmachine.
FI913971A0 (en)	1991-08-22	INUTI AVKYLD RULLE FOER EN STRAENGGJUTANORDNING.
FI903836A0 (en)	1990-08-01	ANTENN.
DE69104797T2 (en)	1995-05-18	2-substituted-1-hydroxyindoles.
DE59100113D1 (en)	1993-06-24	ROLLCONTAINER.
DE69113503D1 (en)	1995-11-09	High frequency heater.
ATE101709T1 (en)	1994-03-15	STANDING WAVE INTERPOLATOR.
FI904123A (en)	1992-02-21	ANTENN.