Global Patent Index - EP 0993513 A4

EP 0993513 A4 2001-04-04 - IMPEDANCE-ASSISTED ELECTROCHEMICAL TECHNIQUE AND ELECTROCHEMISTRY FOR REMOVING MATERIAL, PARTICULARLY EXCESS EMITTER MATERIAL IN ELECTRON-EMITTING DEVICE

Title (en)

IMPEDANCE-ASSISTED ELECTROCHEMICAL TECHNIQUE AND ELECTROCHEMISTRY FOR REMOVING MATERIAL, PARTICULARLY EXCESS EMITTER MATERIAL IN ELECTRON-EMITTING DEVICE

Title (de)

IMPEDANZUNTERSTÜTZTES ELEKTROCHEMISCHES VERFAHREN UND ELEKRTOCHEMIE ZUM ENTFERNEN VON MATERIAL, INSBESONDERE VON ÜBERFLÜSSIGEM EMITTERENDEM MATERIAL, IN EINER ELEKTRONENEMITTIERENDEN VORRICHTUNG

Title (fr)

TECHNIQUE ELECTROCHIMIQUE ASSISTEE PAR IMPEDANCE ET PROCEDE ELECTROCHIMIQUE PERMETTANT D'ELIMINER UN MATERIAU, NOTAMMENT UN MATERIAU GENERATEUR D'EXCEDENTS, DANS UN DISPOSITIF EMETTEUR D'ELECTRONS

Publication

EP 0993513 A4 (EN)

Application

EP 98931401 A

Priority

  • US 9812801 W
  • US 88470097 A
  • US 88470197 A

Abstract (en)

[origin: WO9900537A1] An impedance-assisted electrochemical procedure is employed for selectively removing certain material from a structure without significantly electrochemically attacking, and thus without significantly removing, certain other material of the same chemical type as the removed material.

IPC 1-7 (main, further and additional classification)

C25D 5/02; C25D 5/48; B23H 3/00; H01J 1/02; H01J 1/62; B44C 1/22; H01J 9/02; C25F 3/00; C25F 5/00

IPC 8 full level (invention and additional information)

C25F 5/00 (2006.01); C25F 3/02 (2006.01); C25F 3/14 (2006.01); H01J 9/02 (2006.01)

CPC (invention and additional information)

H01J 9/025 (2013.01)

Citation (search report)

  • [DA] WO 9606443 A1 19960229 - ISIS INNOVATION [GB], et al
  • [A] WO 9709730 A2 19970313 - FED CORP [US]
  • [A] WO 9507543 A1 19950316 - SILICON VIDEO CORP [US]
  • [A] DATABASE WPI Section Ch Week 199116, Derwent Publications Ltd., London, GB; Class E14, AN 1991-112827, XP002144729
  • [PX] CHEMICAL ABSTRACTS, vol. 129, no. 6, 10 August 1998, Columbus, Ohio, US; abstract no. 73363, KOBAYASHI, NOBUO ET AL: "Electrolytic bath and method for electrolytic peeling" XP002144728 & JP H10140400 A 19980526 - EBARA UDYLITE KK
  • See also references of WO 9900537A1

Designated contracting state (EPC)

DE FR GB IE

EPO simple patent family

WO 9900537 A1 19990107; EP 0993513 A1 20000419; EP 0993513 A4 20010404; EP 0993513 B1 20090107; JP 2001508834 A 20010703; JP 3648255 B2 20050518; KR 100621293 B1 20060913; KR 20010014008 A 20010226

INPADOC legal status


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2009-12-16 [26N] NO OPPOSITION FILED

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2009-02-26 [REF] CORRESPONDS TO:

- Document: DE 69840443 P 20090226

2009-02-18 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

2009-01-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

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2009-01-07 [REG GB FG4D] EUROPEAN PATENT GRANTED

2007-05-02 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CANON KABUSHIKI KAISHA

2004-06-23 [17Q] FIRST EXAMINATION REPORT

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2002-01-16 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CANDESCENT INTELLECTUAL PROPERTY SERVICES, INC.

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2000-10-04 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 25D 5/02 A, 7C 25D 5/48 B, 7B 23H 3/00 B, 7H 01J 1/02 B, 7H 01J 1/62 B, 7B 44C 1/22 B, 7H 01J 9/02 B, 7C 25F 3/00 B, 7C 25F 5/00 B

2000-05-03 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 25D 5/02 A, 7C 25D 5/48 B, 7B 23H 3/00 B, 7H 01J 1/02 B, 7H 01J 1/62 B, 7B 44C 1/22 B, 7H 01J 9/02 B

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