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TOPIC: In this example, you want to obtain the fulltext of European patent 0813966. You will conduct the search in European Patents Fulltext (File 348). Other fulltext files include German Patents (File 324), U.S. Patents Fulltext (File 652, 654) and WIPO/PCT Patents Fulltext (File 349).
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Example: S PN=EP 813966.
- For countries that use an annual series (e.g. US 20020000067), enter the two-letter country code, a space, a two-digit year designation (until 1999) or a four-digit year designation (2000-present), and the publication number retaining all leading zeros. (Note: The required number of digits in the publication number can vary by country.)
Example: S PN=US 20020000067
- All published patent documents (both granted patents and published applications) are indexed on Dialog with the Patent Number (PN=) prefix.
EXPAND PN=EP 813966
1. After entering BEGIN 348 to open European Patents Fulltext for searching, search for the patent number (PN=).
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
[File 348] EUROPEAN PATENTS 1978-2006/ 200618
(c) 2006 European Patent Office. All rights reserved.
?e pn=ep 813966
Ref Items Index-term
E1 1 PN=EP 813964
E2 1 PN=EP 813965
E3 1 PN=EP 813966
E4 1 PN=EP 813967
E5 1 PN=EP 813968
E6 1 PN=EP 813969
E7 1 PN=EP 81397
E8 1 PN=EP 813970
E9 1 PN=EP 813971
E10 1 PN=EP 813972
E11 1 PN=EP 813973
E12 1 PN=EP 813974
E13 1 PN=EP 813975
E14 1 PN=EP 813976
E15 1 PN=EP 813977
E16 1 PN=EP 813978
E17 1 PN=EP 813979
E18 1 PN=EP 81398
E19 1 PN=EP 813980
E20 1 PN=EP 813981
E21 1 PN=EP 813982
E22 1 PN=EP 813983
E23 1 PN=EP 813984
E24 1 PN=EP 813985
E25 1 PN=EP 813986
Enter PAGE for more
S1 1 PN='EP 813966'
4. TYPE out the record in Format 9
to see the complete patent.
Note the title is given in three languages.
Patent assignee and inventors include addresses.
2/9/1 (Item 1 from file: 348)
(c) 2006 European Patent Office. All rights reserved.00891481
Record head for an electrostatic ink jet recorder
Aufzeichnungskopfe fur eine elektrostatische Tintenstrahlauf
Tete d'enregistrement pour un dispositif d'enregistrement a
NEC CORPORATION, (236690), 7-1, Shiba 5-chome, Minato-ku,
Tokyo, (JP), (Proprietor designated states: all)
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
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
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
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
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
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