2. EXPAND using the patent number prefix (PN=) the country code (US) and the patent number (EP 813966).

Note: Leading zero not used as part of the patent number.

3 . SELECT the appropriate E number.

?s e3
S1          1   PN='EP 813966'

Note the title is given in three languages.

Patent assignee and inventors include addresses.

?t s1/9/1

 2/9/1 (Item 1 from file: 348) 
EUROPEAN PATENTS
(c) 2006 European Patent Office. All rights reserved.00891481

Record head for an electrostatic ink jet recorder
Aufzeichnungskopfe fur eine elektrostatische Tintenstrahlauf
    zeichnungsvorrichtung
Tete d'enregistrement pour un dispositif d'enregistrement a
    jet d'encre
PATENT ASSIGNEE:
  NEC CORPORATION, (236690), 7-1, Shiba 5-chome, Minato-ku,
Tokyo, (JP), (Proprietor designated states: all)
INVENTOR:
  Kazuo, Shima, c/o NEC Niigata, Ltd., 7546, Oaza Yasuda,
Kashiwazaki-shi, Niigata, (JP)
  Junichi, Suetsugu, c/o NEC Niigata, Ltd., 7546, Oaza Yasuda,
    Kashiwazaki-shi, Niigata, (JP)
  Ryosuke, Uematsu, c/o NEC Niigata, Ltd., 7546, Oaza Yasuda,
    Kashiwazaki-shi, Niigata, (JP)

Patent numbers, an abstract and legal status are provided.

PATENT (CC, No, Kind, Date):  EP 813966   A2  971229 (Basic)
                              EP  813966 A3 980819
                              EP  813966  B1  991027
APPLICATION (CC, No, Date):   EP  97250184 970614;
PRIORITY (CC, No, Date):  JP 96155895 960617
DESIGNATED STATES: DE; FR; GB
INTERNATIONAL PATENT CLASS (V7): B41J-002/14; B41J-002/06
CITED PATENTS (EP B): EP 703080 A; EP 703081 A; WO 93/11866 A
			  
ABSTRACT EP 813966 A2
  A record head for an electrostatic  ink jet recorder of 
  the present invention is formed with undulation  having a 
  high aspect ratio thereon. Channels formed between nearby 
  ridges  due to the undulation are used as ink passageways. 
  This allows the ridges  to form convex ink meniscuses
  stably at all times at their front  ends or ejection 
  points, and thereby insures stable ejection of ink drops.
  Moreover, ink fed to the front ends of the ridges is 
  constantly circulated  by way of an ink collecting
   member. The circulation of the ink maintains the 
  toner content of  the ink uniform throughout the ejection
  points, and prevents the toner particles from excessively 
  concentrating on the  ejection points where ink ejection
  does not occur.
ABSTRACT WORD COUNT: 121
NOTE:
  Figure number on first page: 2B
			    
LEGAL STATUS (Type, Pub Date, Kind, Text):
Oppn None:       001011 B1 No opposition filed: 20000728
Application:     971229 A2 Published application (A1with 
  Search Report

Fulltext of this patent includes a Specification including Background of the Invention, Summary of the Invention, Description of Drawings, and Description of the Preferred Embodiments.

Note: Parts of the patent have been omitted from this display.

SUMMARY OF THE INVENTION
    It is therefore an object of the  present invention to 
  provide a record head for an electrostatic ink jet
  recorder capable of ejecting ink drops containing 
  toner particles stably in  an electrostatic field.
    A record head for an electrostatic  ink jet recorder 
  of the present invention includes a head base formed 
  of  an insulating material and so undulated as to form
  ridges at  intervals. Independent ejection electrodes
  are formed of a conductive material  and formed on the
  tops of the ridges or on at least one of the walls of
  the  ridges facing each other and the bottoms of
  channels defined between  the ridges. An ink
  collecting member covers the front end of the head base
  with respect to the direction of ink ejection and the
  bottoms of the  channels, and collects ink overflown
  the head base. A cover covers the top  of the head
  base except for a front portion thereof.

  BRIEF DESCRIPTION OF THE DRAWINGS
    The above and other objects,  features and advantages
  of the present invention will become apparent from the
  following detailed description taken with the
  accompanying drawings  in which:
     FIG. 1A is an external perspective  view showing a
  conventional record head for an electrostatic ink jet
  recorder;
     FIG. 1B is a plan view showing the  front end
  portion of the conventional record head;

Claims can be viewed in English, French and Germany in this record.

Note: The remainder of this patent has been omitted from this display.

CLAIMS 1. A record head for an electrostatic ink  jet 
recorder, comprising:
   a head base formed of an insulating  material and so 
      undulated as to form ridges at intervals, independent
      ejection electrodes formed of a conductive material
      being formed  on tops of said ridges or on at
      least one of walls of said ridges  facing each other
      and bottoms of channels defined between said  ridges;
   an ink collecting member covering a  front end of said
      head base with respect to a direction of ink  ejection
      and said bottoms of said channels, for collecting ink
      overflown said head base; and
   a cover covering a top of said head  base except for a
      front portion of said head base.
  2. A record head as claimed in claim  1, wherein each of
      said channels between said ridges has a width  small
      enough to generate capillarity, and wherein said
      ridges have a  height greater than the width of said
      channels.