baber/WOPTO huggingface dataset:
Patent DD-146138-A3 (DD)
Title: Verfahren zur herstellung von kuehlelementen mit eingegossenen kuehlrohren fuer metallurgische oefen
Inventor: WIENEGGE HEINZ
IPC: B22D19/00
Filed: 1978-08-21
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von  Kuehlelementen mit eingegossenen Stahlrohren fuer metallurgische Oefen, insbesondere Hochoefen. Das Ziel der Erfindung besteht in einer Verringerung des Aufwandes bei der Herstellung von Kuehlelementen unter Vermeidung der bisher bekannten Nachteile. Aufgabe der Erfindung ist es, ein Verfahren zu finden, welches eine einfachere Herstellung und eine Verbesserung der Eigenschaften von Kuehlelementen ermoeglicht. Erfindungsgemaesz wird die Aufgabe dadurch geloest, dasz die vorgefertigten und gereinigten Stahlrohre mit einem Silikonlack, in dem metallisches Aluminium eingelagert ist, behandelt wird, so dasz nach einem anschlieszenden Trocknungsprozesz sich auf dem Stahlrohr eine festhaftende Schutzschicht bildet, die sich waehrend des Abgusses zu einer duennen und sproeden, gut waermeleitfaehigen Fe&indx!Al&indy!-Zwischenschicht umgewandelt und eine Aufkohlung der Stahlrohre wirksam verhindert.
Patent DD-159271-A3 (DD)
Title: Reibkupplungen mit druckverteilungsscheibe
Inventor: KUNZE GUENTER
IPC: F16D13/70
Filed: 1980-06-02
Abstract: Die Erfindung bezieht sich auf Reibkupplungen mit Druckverteilungsscheibe, die eine gleichmaessige Kraftuebertragung (Schalt- oder Federkraft) auf die Reibpaarung der Kupplung (z. B. schaltbare Lamellenkupplungen, Lamellen-Sicherheitskupplungen) verursacht. Bei diesen Kupplungen handelt es sich um die bekannten drehmomentuebertragenden Maschinenelemente, die in der Regel zwischen Kraft- und Arbeitsmaschine angeordnet sind. Die Druckverteilungsscheibe ist ein rotationssymmetrisches Teil mit einer umlaufenden Sicke. Sie wird in der Regel aus Blech im Kalt-Fliessprozess hergestellt und ist nach den bekannten Bemessungsverfahren fuer Teller- und Ringfedern so auszulegen, dass sie entsprechende mit dem Gesamtaufbau der Kupplung verknuepfte Federeigenschaften besitzt. Darueber hinaus ist die Sicke so zu gestalten, dass die Krafteinleitung immer auf dem sogenannten mittleren Reibdurchmesser erfolgt. Neben der Verbesserung der Funktionseigenschaften durch Einsatz von Druckverteilungsscheiben erzielt man auch einen Rationalisierungseffekt. Dazu gehoeren Materialeinsparungen und Reduzierung des Fertigungsaufwandes am Kraftuebertragungselement sowie Verringerung der Eigenmasse der Kupplung.
Patent DD-205809-A3 (DD)
Title: Vibrationsantrieb, vorwiegend fuer translationsbewegungen
Inventor: BAUDISCH ROLAND
IPC: G11B5/54
Filed: 1981-12-05
Abstract: DIE ERFINDUNG BETRIFFT EINE ANTRIEBSEINRICHTUNG FUER DIE REALISIERUNG VON TRANSLATIONSBEWEGUNGEN FUER KLEINE MASSEN BEI FOLIEN- ODER PLATTENSPEICHERN ODER KLEINEN DRUCKWERKEN.BEI POSITIONIEREINRICHTUNGEN LASSEN SICH KURZE START- UND STOPWEGE BEI SEHR GERINGER BAUHOEHE REALISIEREN. EINE STABILE HALTEKRAFT SICHERT BEI ERREICHTER SOLLPOSITION EINE STABILE RUHELAGE. DER ANTRIEB WIRD REALISIERT DURCH PIEZO-VIBRATIONSELEMENTE, MIT DEREN ENDE EIN STAHLBAND FEST VERBUNDEN IST, DAS IN EINEM BESTIMMTEN WINKEL EINE GEWOELBTE FLAECHE DES ANZUTREIBENDEN KOERPERS UMSCHLINGT UND VON EINEM FEDER-MASSE-SYSTEM VORGESPANNT WIRD. BEI ERREGUNG DER VIBRATOREN MIT EINER BESTIMMTEN PHASENVERSCHIEBUNG WERDEN BEDINGT DURCH REIBKRAFT UND REIBWERT ZWISCHEN STAHLBAND UND GEWOELBTER FLAECHE TRANSLATIONSBEWEGUNGEN REALISIERT.
Patent DD-238158-A3 (DD)
Title: Haubentrennvorrichtung
Inventor: CERANSKY RUDOLF
IPC: B29C49/74
Filed: 1983-03-10
Abstract: Die Erfindung betrifft eine Vorrichtung zum Abtrennen der Hauben vom Kopf der Blasteile aus thermoplastischem Werkstoff fuer die Bildung einer werkzeuggeformten horizontalen Dichtflaeche am stirnseitigen Oeffnungsrand. Es wird die Rationalisierung der Herstellung von Weithalsfaessern mit dichtem Verschluss bezweckt. Die Aufgabe, einen von der bekannten radialen Trennrichtung abweichenden Arbeitsbereich des Schneidwerkzeuges zu verwirklichen, wird mit einer in Hohlkoerperachsrichtung verfahrbaren Anordnung des rotorseitigen Vorrichtungsteiles geloest. Fuer die Fuehrung des Schneidwerkzeuges ist seine starre Verbindung mit einer Fuehrungsrolle, deren Achse parallel zur Hohlkoerperachse verlaeuft, wesentlich.
Patent DD-278917-A3 (DD)
Title: Verfahren zur mikrobiellen eliminierung von hoehermolekularen wasserinhaltsstoffen
Inventor: NEUBAUER PETER
IPC: C02F3/34
Filed: 1988-03-24
Abstract: Die Erfindung bezieht sich auf die Eliminierung von hoehermolekularen Wasserinhaltsstoffen (Mm500) mit aromatischen Strukturanteilen (Huminstoffe, Ligninverbindungen) bei der Wasser- und Abwasserbehandlung. Erfindungsgemaess werden den an sich bekannten Reaktoren zur Wasser- und Abwasseraufbereitung Hefereinkulturen der Staemme SBUG 729 (IMET 43872) und/oder SBUG 730 (IMET 43873) und/oder SBUG 732 (IMET 43871) und/oder SBUG 733 (IMET 43874) zugesetzt. Diese Reaktoren koennen Traegermaterialien, vorzugsweise Adsorbenzien, wie z. B. Aktivkohle, enthalten. Der Zusatz der Hefereinkulturen erfolgt durch Beimpfen des arbeitenden Reaktors. Die Hefereinkulturen koennen auch zur Regenerierung der Traegermaterialien eingesetzt werden und dazu im Kreislauf ueber diese gefuehrt werden.
Patent DD-275985-A3 (DD)
Title: Anordnung fuer motorlose magnetfeldruehrer
Inventor: JUNG RAINER
IPC: B01F13/08
Filed: 1988-02-18
Abstract: Die Erfindung betrifft eine Anordnung fuer motorlose Magnetfeldruehrer, die bei entsprechender Erregung ein gleichmaessig rotierendes magnetisches Drehfeld mit hohem Durchgriff im Zentrum erzeugt. Typische Anwendungsgebiete sind die biotechnologische und chemische Forschung und Industrie, wo sowohl leistungsstarke Laborruehrer als auch Kleinst- und Foerderruehrer fuer Kuevetten, Spektrometer u. a. eingesetzt werden. Ziel der Erfindung ist die Schaffung einer Anordnung fuer leistungsstarke motorlose Magnetfeldruehrer die auf kleinstem Raum und an schwer zugaenglichen Stellen vielseitige Ruehraufgaben erledigt. Die Aufgabe besteht darin, die mechanische Bauhoehe/Baugroesse der Anordnung entscheidend zu verringern, wobei das wirksame magnetische Feld einen hohen Zentrierungsgrad aufweist. Erfindungsgemaess wird die Aufgabe geloest, indem Polschuhe und ein kreisringfoermiger Kern aus Weicheisen so miteinander verbunden sind, dass die Polschuhe radial zum Mittelpunkt weisen und Magnetspulen aufnehmen. Je nach Aufgabenstellung - Ruehren oder Foerdern - liegen die Polschuh-Achsen in einer Ebene mit dem Kern oder sind zur Mitte um einen kleinen Winkel a angehoben.
Patent EP-1020769-A3 (EP)
Inventor: MCCULLOUGH ANDREW W
IPC: G03F7/23
Filed: 2000-01-10
Abstract: Blades (48) pivotally attached together linked to push rods
(34) and inserted into an illumination field, energy or flux
(510). The blades (48; 520) extend longitudinally along the
length of a rectangular illumination field or slit (510) used to
image a reticle (537) onto a photosensitive substrate. The blades
(48; 520) controllably adjust the width of the rectangular
illumination field (510) to modify the illumination intensity or
energy provided to a photosensitive substrate. The illumination
field (510) is scanned across the photosensitive substrate (560)
to expose it with the image of a reticle (537) . The blades (48;
520) are dynamically controlled (541) during the scanning
exposure to adjust the illumination intensity or energy in a
predetermined way. The resulting selective change in exposure
dose corrects local area of line width variance. Various errors
in pattern reproduction using a photolithographic system are
relatively easily corrected. This is particularly advantageous in
a scanning lithography system used in the manufacture of
semiconductors.
Patent EP-1024583-A3 (EP)
Inventor: DREIHAUS UWE
IPC: H02K1/27
Filed: 2000-01-28
Abstract: Verfahren zur flüssigkeitsdichten Verkapselung eines
Rotorpaketes einer elektrischen Maschine, insbesondere
eines Elektromotors zum Betrieb einer Spaltrohrpumpe,
wobei das die Welle umgebende und Permanentmagneten
tragende Rotorpaket zur Abdichtung von einer Hülse aus
Blech umgeben ist, wobei die Hülse 1 mittels
Beaufschlagung durch axial gerichtete magnetische
Felder, die radiale Kräfte erzeugen, auf das Rotorpaket
aufgeschrumpft wird.
Patent EP-1039080-A3 (EP)
Title: Zentralverriegelungsanlage für ein Kraftfahrzeug
Inventor: KLEEFELDT FRANK
IPC: E05B81/16
Filed: 2000-03-11
Abstract: Es handelt sich um eine Zentralverriegelungsanlage für ein
Kraftfahrzeug, welche grundsätzlich einen Zentralverriegelungshebel
(14) mit Zentralverriegelungsantrieb (5), ein
elektronisches Steuergerät (1), zumindest einen von dem
Steuergerät (1) elektronisch ansteuerbaren Kraftfahrzeugtürverschluß
(2) mit Drehfalle (7) und Sperrklinke (8) und
wenigstens eine Identifizierungseinrichtung (6) aufweist.
Der Kraftfahrzeugtürverschluß (2) wird bei Betätigung eines
zugehörigen Türaußengriffs nach Überprüfung der Identifizierungseinrichtung
(6) und Freigabe durch das Steuergerät
(1) motorisch geöffnet. Zu diesem Zweck betätigt der
Zentralverriegelungsantrieb (5) über den Zentralverriegelungshebel
(14) die Sperrklinke (8) zur Freigabe der Drehfalle
(7), und zwar mittelbar oder unmittelbar. Hierdurch
wird eine Zusatzfunktion des Zentralverriegelungsantriebs
(5) mit Zentralverriegelungshebel (14) dargestellt, welche
einen einfachen Aufbau, geringes Gewicht und kostengünstige
Ausgestaltung des Kraftfahrzeugtürverschlusses (2) bzw. der
gesamten Zentralverriegelungsanlage nach sich zieht.
Patent EP-1049193-A3 (EP)
Inventor: KINTAKA YUJI
IPC: H01P1/20
Filed: 2000-04-20
Abstract: In a dielectric resonator (10) where a superconductor
(12) is formed on neighboring two surfaces of a cubic
dielectric body (11), the superconductor (12) formed on the
neighboring two surfaces are connected by a silver electrode
(13) formed in the vicinity of the edge where the
neighboring two surfaces join.
Patent EP-1050575-A3 (EP)
Inventor: STOLZ MARTIN DR
IPC: C11D1/22
Filed: 2000-05-03
Abstract: Alkaline (laundry) detergent contains: (a) alkylbenzenesulfonic acid(s) or salt(s) with a linear or branched 8-24 carbon (C) alkyl group, (b) alkanolamine(s) and/or their ammonium salt(s) (I) and (c) 0-10 wt.% builder(s), the (a):(b) weight ratio being (7-1):1. Alkaline (laundry) detergent contains: (a) alkylbenzenesulfonic acid(s) or salt(s) with a linear or branched 8-24 carbon (C) alkyl group, (b) alkanolamine(s) and/or their ammonium salt(s) of formula (I) and (c) 0-10 wt.% builder(s), the (a):(b) weight ratio being (7-1):1; (H+)nN(RaO)kH(RbO)lH(RcO)mH (I) k, l, m = 0-3; k+l+m = over 1; n = 0 or 1; Ra, Rb, Rc = linear or branched hydrocarbyl with 2-6 C and, in at least case, 3-6 C.
Patent EP-1072781-A3 (EP)
Inventor: SUGIYAMA MASANORI
IPC: F02M63/02
Filed: 2000-07-26
Abstract: During the idling state, the number of times of injecting fuel per performance
of the fuel delivery from a high-pressure fuel pump (47) is decreased or increased. If
the number of times of injecting fuel per performance of the fuel delivery is
decreased, the amount of fuel that needs to be delivered by one performance of the
fuel delivery is reduced, so that the timing of starting to close an electromagnetic
spill valve (54) can be delayed. Therefore, the lift of a plunger (48b) for 1° rotation of
a cam (22a) (i.e., cam speed) at the time of closure of the electromagnetic spill valve
(54) decreases, so that the force applied from fuel to the electromagnetic spill valve
(54) in the valve closing direction decreases. If the number of times of injecting fuel
per performance of the fuel delivery is increased, the noises produced at the time of
closure of the electromagnetic spill valve (54) increase because the timing of starting
to close the spill valve (54) is advanced to increase the amount of fuel delivered by
one performance of the fuel delivery. However, the number of times of closing the
electromagnetic spill valve (54) during a predetermined period decreases, so that the
number of occurrences of the valve closure noises decreases.
Patent EP-1074339-A3 (EP)
Inventor: HORNE DAVID M
IPC: B24B5/06
Filed: 2000-08-04
Abstract: This invention relates to an improved vehicle wheel hub (12) and bearing unit
assembly (10) and method for producing the same wherein an outer brake rotor
mounting surface of the wheel hub and bearing assembly is subjected to a
microfinishing process. The method for producing the vehicle wheel hub and
bearing assembly comprises the steps of: (a) providing a vehicle wheel hub (12)
including an inboard end (16), an outboard end (18), and a main body (20) having a radially
outwardly extending flange (22), the flange having an outer surface which defines an
outer brake rotor mounting surface (22B) of the vehicle wheel hub; (b) providing a
bearing unit (10) to rotatably support the vehicle wheel hub relative thereto; (c)
assembling the bearing unit onto the vehicle wheel hub to produce a vehicle
wheel hub and bearing unit assembly which defines a longitudinal axis (X); (d)
preloading the bearing unit; (e) providing a microfinishing assembly (50) having a
microfinishing wheel (52); (f) supporting the vehicle wheel hub and bearing assembly (10)
on the microfinishing fixture; and (g) operating the microfinishing fixture (40)
whereby the microfinishing wheel (52) engages the outer brake rotor mounting
surface (22B) of the vehicle wheel hub and bearing unit assembly (10) to produce a finished
vehicle wheel hub and bearing assembly, the outer brake rotor mounting surface
of the finished vehicle wheel and bearing unit assembly being microfinished
relative to the longitudinal axis of the vehicle wheel hub and bearing unit
assembly.
Patent EP-1075039-A3 (EP)
Inventor: MATSUMOTO WATARU
IPC: H01Q1/12
Filed: 1996-09-20
Abstract: An antenna device comprises a whip antenna (106) capable of
moving between a storage position where the whip antenna (106) is
contained within an equipment housing and an extended position
where the whip antenna (106) is pulled out of the device housing
for receiving and/or transmitting a signal. A second helical antenna (103)
may be contained in the equipment housing for receiving
and/or transmitting a signal when the whip antenna (106) assumes
the storage position. The rotator (105) rotates the whip antenna (106)
with respect to the device housing in the extended position and
provides at the same time a capacitive connection to the whip antenna (106). 
     Intended use are portable radio communication devices.
Patent EP-1097855-A3 (EP)
Inventor: NISHIZAKI KATSUTOSHI
IPC: B62D5/00
Filed: 2000-10-19
Abstract: A steering device for a vehicle wherein the movement of a steering actuator
(2) is transmitted to the wheels (4) of a vehicle in such a manner that the
steering angle changes in accordance with this movement, without the operating
member (1) being coupled mechanically to the vehicle wheels (4). A behaviour
index value corresponding to change in the behaviour of the vehicle due to
change in the steering angle is determined, and a target behaviour index value
corresponding to the amount of operation of the operating member (1) is
calculated. A steering angle correction value corresponding to the differential
between the target behaviour index value and the determined behaviour index
value is summed with a steering angle set value corresponding to the target
behaviour index value to give a target steering angle. The steering actuator (2)
is controlled in such a manner that the steering angle corresponds to the target
steering angle.
Patent EP-1096153-A3 (EP)
Inventor: NAKADA RYOICHI
IPC: F04D23/00
Filed: 2000-10-27
Abstract: The invention provides an impeller for a
circumferential current pump which does not generate a weld
phenomenon and can make a structure of an injection molding
metal mold simple. An impeller (2) for a circumferential
current pump (1) is provided with a plurality of vane grooves
(12) on an outer periphery of a synthetic resin disc-like
member (8) rotated by a motor (3a), and is rotatably received
with a substantially disc-like space (6) formed between a
pump casing (4) and a pump cover (5). An axial hole (15)
engaging with a drive shaft (21) of the motor (3a) is formed
in a center portion of the disc-like member (8), and a
pressure adjusting groove (17) open to both side surfaces (10,
11) of the disc-like member (8) is formed in the axial hole
(15). An annular recess portion (18) for arranging a ring
gate (20) for injection molding Is formed at a position a
predetermined size apart from an outer peripheral side of the
axial hole (15). The pressure adjusting groove (17)
functions to keep a balance of a pressure applied to both
side surfaces (10, 11) in the impeller (2).
Patent EP-1113534-A3 (EP)
Inventor: FUSSELMAN DAVID F
IPC: H01R43/24
Filed: 2000-11-17
Abstract: The invention relates to an electrical connector (10) comprising
an electrical contact (22); and a housing (20). The
housing (20) comprises a first member (24) and a second
member (26). The first member (24) comprises a contact receiving
channel (40, 42). The second member (26) is over-molded
onto the first member (24). The electrical contact
(22) is located in the channel (40, 42) and retained on the
housing (20) by a capture of the contact between the first
(24) and second (26) members. The first member (24) and the
contact (22) extend past a first end of the capture of the
contact between the first (24) and second (26) members.
Patent EP-1083356-A3 (EP)
Inventor: GOCHENOUR DANIEL V
IPC: F16D13/71
Filed: 1995-06-12
Abstract: A friction device includes an adjustment mechanism 42 for adjusting the device in response to wear on a friction surface within the device. The adjustment mechanism 42 includes a first cam ring 46 and a second cam ring 48 adjacent the first cam ring 46. In one embodiment, the first cam ring 46 is adapted for axial, but non-rotational movement with respect to a cover 32 of the friction device, the cover 32 being secured to a driving member 22 for transmitting torque. The second cam ring 48 is adapted for rotational movement with respect to the cover 32 and the first cam ring 46. The first cam ring 46 has a plurality of annular ramped surfaces 80 on an axial face 79 of the first cam ring. The second cam ring 48 has a plurality of annular ramped surfaces 88 on an axial face 87 opposing the axial face 89 of the first cam ring 46. The second cam ring 48 is rotated with respect to the first cam ring 46 such that the ramped surfaces 80, 88 cam against each other to increase the axial displacement of the first cam ring 46 and the second cam ring 48, whereby the axial displacement is adapted to compensate for wear on a friction surface of a member of the friction device.
Patent EP-1113696-A3 (EP)
Inventor: SHAMSELDIN ADEL A DR
IPC: H04Q11/04
Filed: 2000-12-28
Abstract: A network node includes a TDM-ATM gateway that performs loop functions on behalf
of one or more narrowband derived lines. The gateway is incorporated into the same equipment
that performs routing of network traffic. The routing can involve switching or multiplexing or
both, and it can consist of ATM cell routing or TDM traffic routing or both. In an embodiment,
the gateway is incorporated into an integrated DLC/DSLAM access node. A single Element
Management System may be used to manage the integrated DLC/DSLAM/Gateway equipment.
Patent EP-1055447-A3 (EP)
Inventor: TSUIHIJI MOTOYUKI
IPC: B01D69/14
Filed: 2000-03-29
Abstract: Removables 12 trapped by a first filter film 10 are
used as a second filter film 13, and clogging of the first
filter film 10 is prevented, and an external force such as
bubbles is applied to the second filter film 13 to maintain
filtering capacity. And when removables are mixed with the
filtered water, the filtered water is recirculated again to
the tank in which the wastewater is stored, and after it is
checked that a desired inclusion rate has been reached
filtration is started again.
Patent EP-1087002-A3 (EP)
Inventor: LEWIS LARRY NEIL
IPC: B32B27/00
Filed: 2000-04-13
Abstract: A method of making a coated substrate which includes the steps of applying a
layer of a coating composition, said coating composition comprising an
alkenyl functional organopolysiloxane and a hydride functional
organopolysiloxane, to the substrate, said substrate comprising a catalytically
effective amount of a precious metal catalyst, and allowing the layer to cure,
allows the use of a non-catalyzed coating bath having a very long useful life,
while providing a highly reactive coating layer that may be rapidly cured at
low temperature.
Patent EP-1100008-A3 (EP)
Inventor: MINNAERT GARY
IPC: G06F17/21
Filed: 2000-09-11
Abstract: A method, apparatus, and article of manufacture for customizing a
document interface for display on a computer monitor. In accordance with
the present invention, a documentation file is retrieved. Next, an input
from a user is received. The input from the user comprises an instruction
for customizing a hierarchical format of the retrieved documentation file.
Based on the received input from the user, the hierarchical format of the
retrieved documentation file is dynamically customized.
Patent EP-1087581-A3 (EP)
Inventor: DOMON WATARU
IPC: H04L12/64
Filed: 2000-09-22
Abstract: An isochronous packet transfer method is provided which can reduce a transmit
buffer size required for isochronous packet transfer, and which can give a constant delay
to an isochronous packet even if transmission of a cycle-start packet is delayed. An
isochronous packet received from an input side bus (40) is input to a delay section
(111), and this isochronous packet is delayed in accordance with delay information (109)
and is transmitted to an output side bus (41). Input side and output side cycle-identification
information generating sections (103, 104) respectively output cycle
identification information (101, 102) which changes at a timing at which a cycle-start
packet is sent to the input side bus (40) and the output side bus (41). Input side and
output side reference cycle-identification information generating sections (107, 108)
sample the input side and output side cycle-identification information (101, 102) at
predetermined timing and input side and output side reference cycle-identification
information (105, 106). A delay information generating section (110) adds a fixed delay
to a difference in the elapsed cycle number for each bus form the predetermined timing,
based on input side and output side cycle-identification information (101, 102) and input
side and output side reference cycle-identification information (105, 106) to generate
delay information (109).
Patent EP-1111546-A3 (EP)
Inventor: EDMARK JOHN T
IPC: H04N13/00
Filed: 2000-12-08
Abstract: Although in my co-pending application, so-called "pyramidic panel structures" are
employed to adjust the image's vanishing point(s) in accordance with the movement of the
user, such structures have the disadvantage that they work primarily for so-called "corridor-like"
two-dimensional images. I have recognized that, in accordance with the principles of
the invention, viewpoint changes may be also dealt with by partitioning the two-dimensional
image into polygon partitions, each corresponding to a surface being depicted in the image,
and then coupling the vertices of the polygon partitions with the movement of the user so
as to limit distortions. In this latter approach, two-dimensional images are not treated as a
perspective, corridor-like image, thereby allowing a wider variety of two-dimensional
images to be used with the present invention.
Patent EP-1118421-A3 (EP)
Inventor: OKUMURA TOKUJI
IPC: B60R21/20
Filed: 2000-12-19
Abstract: Assuming that t1 represents a period of time until a
detection signal is outputted after a sensor (20) senses a
laser beam passed through a through-hole of a workpiece
(12), t2 represents a period of time until the detection
signal derived from the sensor (20) exceeds a preset
threshold value, and t3 represents a period of time until
radiation of the laser beam is actually stopped after the
threshold value is exceeded, a total period of time (t1 + t2
+ t3) of the periods of time tl to t3 is set to be shorter
than a time difference (T2 - T3) between a pulse width (T3)
and one cycle (T2) of a pulse signal for constructing a
laser output command signal.