Abstract: A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive roller earlier than the driven roller; the sheet that is in the course of being discharged is guided by a sheet discharge tray so as to come in slidable contact with an edge portion that is on a print head side of a sheet discharge opening. As a result, the printer can provide satisfactory printing conditions quickly with a simple structure and reduce noise leaking from the sheet discharge opening.
Abstract: A composition comprising metal oxide particles having photo-catalytic activity, a solvent-soluble zirconium compound and a solvent. Preferably, the metal oxide particles having photocatalytic activity are titanium oxide particles; the metal oxide particles have an average particle diameter of about 0.005 to 0.3 &mgr;m; and the amount of the zirconium compound is in the range of about 3-200 parts by weight, as ZrO2, per 100 parts by weight of the metal oxide articles. A composite of a film having a photo-catalytic activity with a base material is made by coating the base material with the above composition to form a film, and curing the film on the base material.
Abstract: A method of detecting the loss-of-signal condition at the input of a transmission line interface when the input signal is coded. The input signal decoding includes an additional procedure allowing the detection of loss-of-signal condition. Since the pseudo-random sequence of the input signal transitions includes sequences of code violations, the additional procedure, over a certain threshold error rate, corresponding to a number of code violations in a unit of time, detects the loss-of-signal condition.
Abstract: A process for preparing a 2-acylamino alcohol derivative which comprises (A) reacting an aminopropanol derivative represented by the following formula (1):
Y—CH2—C*H (NHP1)—C*H(OH)—R1 (1)
with an amine represented by R2H to synthesize an amino alcohol derivative represented by the following formula (2):
R2—CH2—C*H(NHP1)—C*H(OH)—R1 (2)
(B) leaving P1 from said amino alcohol derivative represented by formula (2) to synthesize an amino alcohol derivative represented by the following formula (3):
R2—CH2—C*H(NH2)—C*H(OH)—R1 (3)
(C) reacting said amino alcohol derivative represented by formula (3) with a carboxylic acid represented by R11COOH or a reactive derivative thereof to prepare a 2-acylamino alcohol derivative represented by the following formula (4):
R2—CH2—C*H(NHCOR11)—C*H(OH)—R1 (4 )
wherein * represents an asymmetric carbon atom, and P1, R1, R2 and R
Abstract: A pre/post-distortion circuit particularly for microwave radio-frequency systems is disclosed. The pre/post-distortion circuit according to the present invention, comprising an input signal (I) controlled attenuator (AT), is characterized by further comprising divider means (DI) for properly subdividing said input signal (I) and transmitting it to respective channels (A, B, C), a first (C) of said channels comprising means (PS, DC) for repeating or cloning, from a distortion point of view, the signal whose circuit one wishes to pre/post distort, the others (A, B) of said channels comprising substantially linear networks (LN), and adding means (AD) to sum the signals coming out of said channels (A, B, C). A method is also disclosed for pre/post-distorting a signal, particularly in radio-frequency systems.
Type:
Grant
Filed:
March 17, 2000
Date of Patent:
January 1, 2002
Assignee:
Alcatel
Inventors:
Mario Giovanni Luigi Frecassetti, Marco Frigerio, Salvatore Gugliuzzo
Abstract: A motor operation controller, which can accommodate different power supply voltages by changing a minimum circuit configuration using common motors, wiring, etc., has an insulation structure between input power supply and the motors for providing the capability of bidirectional operation in a power mode and a regeneration mode. The motor operation controller comprises a converter section and an inverter section for supplying power to a motor. In the converter section, there is an insulation type bidirectional DC voltage conversion function provided by an insulation type bidirectional DC voltage conversion section 32 having an insulation type bidirectional DC voltage converter 33, a controller 35, and a smoothing circuit 34.
Abstract: A benzoheterocyclic derivative of the following formula [1]:
and pharmaceutically acceptable salts thereof, which show excellent anti-vasopressin activity, vasopressin agonistic activity and oxytocin antagonistic activity, and are useful as a vasopressin antagonist, vasopressin agonist or oxytocin antagonist.
Abstract: A nitride semiconductor light emitting device which uses as a light emitting layer an indium-containing group-III nitride semiconductor layer of a multi-phase structure composed of a main phase and sub-phases having different indium contents is characterized in that the sub-phases are mainly formed of crystal whose boundary with the main phase is surrounded by a strained layer.
Abstract: To make a variable phase shifter at low cost and that is easy to manufacture, two propagation paths for a high frequency signal are provided in parallel between the input and the output of the phase shifter. These two paths are of different lengths. An intermediate node on one of the paths is connected to an intermediate node on the other path by a PIN diode. The diode is connected to the paths by a segment of line further enhancing the length difference. By biasing the diode to a desired level, it is caused to present a particular impedance to propagation. It is shown that by acting in this way the diode can vary the phase shift between the input and the output without needing to use harmful reactive components.
Abstract: Reclaimed rubber having excellent performance is applied for reuse in tires or for asphalt, etc. The reclaimed rubber obtained by devulcanization treatment of vulcanized rubber from discard tires, etc. has a proportion of sol to gel: 10-80%, a weight-average molecular weight (Mw) of the sol by gel permeation chromatography (GPC): 20,000-300,000, and a degree of swelling of the gel: 3.0-20.0. A process for reclaiming the vulcanized rubber is also disclosed.
Abstract: A digital data exchange device, used for the dynamically electrical connection of a plurality of input ports to a plurality of output ports, which comprises: a first multiplexer, electrically connected to the plurality of input ports, used for selecting an input port to output data of the selected input port, wherein the data contains an output port ID; a demultiplexer, electrically connected to the first multiplexer and the plurality of output ports, used for selecting the output port based on the output port ID to output an input port ID to the output port; an address generator, electrically connected to the multiplexer and the demultiplexer, for sequentially generating the input port IDs of the plurality of input ports. This allows the first multiplexer to select the appropriate input port, so that the input port ID is transmitted to the output port by using the demultiplexer, thereby electrically connecting the input port to the output port.
Abstract: The invention provides an epitaxial wafer including a first p-type layer; a p-type cladding layer; a p-type active layer; an n-type cladding layer; and a second n-type layer stacked on a p-type GaAs single-crystal substrate, wherein Zn is employed as a dopant in the first p-type layer; Ge is employed as a dopant in the p-type cladding layer and the p-type active layer; Te is employed as a dopant in the n-type cladding later and the second n-type layer; the average carrier concentration of the n-type cladding layer and the second n-type layer is 8×1017 cm−3 to 2×1018 cm−3; the n-type cladding layer has a thickness of 60-80 &mgr;m; the second n-type layer has a total concentration of Zn and Ge of 1×1017 atoms/cm3 or less; the dopant concentration of the portion in the second n-type layer within 3 &mgr;m of the interface between the n-type cladding layer and the second n-type layer is 3×1017 cm−3 or more; the Al compositional proportion in the n-type cladding layer or th
Abstract: A solid pesticidal composition containing acephate is stabilized by adding thereto at least one stabilizer selected from the group consisting of boron oxide, metaboric acid, aluminum oxide and the calcined product of synthetic silicon dioxide.
Type:
Grant
Filed:
March 31, 1994
Date of Patent:
January 1, 2002
Assignee:
Sumitomo Chemical Co., Ltd.
Inventors:
Yasuyuki Katayama, Toshiro Ohtsubo, Daniel C. Heffernan
Abstract: A drive apparatus for a charge storage light-emitting device which comprises drive-voltage applying means for applying a drive voltage to the charge storage light-emitting device, drive-current limiting means for limiting a drive current to be supplied to the charge storage light-emitting device, voltage detection means for detecting a terminal voltage between both electrode terminals of the charge storage light-emitting device, and voltage control means for controlling a value of the drive voltage in accordance with the detection result as a spatial charge voltage from the voltage detection means.
Abstract: An ink jet recording head of the type in which a passage unit is formed as a layer structure made up of a passage forming plate and an elastic plate. The elastic plate is formed with a thick portion and a thin film portion. The thick portion bonded to the common ink chamber is used as a beam structure deformable toward the common ink chamber. The beam structure is deformed to create a flexure in a thin film sealing the common ink chamber.
Abstract: To process a plurality of types of information having different priority according to the priority, multiple logical channels are generated by combining a protocol in a transport layer of a network and a print queue in an application layer and priority is allocated to each logical channel. A host computer sends generated information to a predetermined logical channel by referring to a priority table. A printer discriminates the priority of received information by referring to a priority table and executes the processing of the information according to the priority. As a result, interrupt print data can be processed prior to normal print data or a control command can be processed prior to than print data.
Abstract: Ink is filled in an ink cartridge having a housing communicating with ambient air through an air communicating hole, a porous member impregnating with ink, an ink supply port, and a valve device including a valve body always urged by a spring and a valve seat abutting against the valve body, and ink is filled in the housing of the ink cartridge through the ink supply port.
Type:
Grant
Filed:
November 29, 2000
Date of Patent:
December 25, 2001
Assignee:
Seiko Epson Corporation
Inventors:
Satoshi Shinada, Yuichi Nakamura, Hisashi Koike, Yukiharu Suda
Abstract: The bearing device comprises a bearing 4, a washer 5 and a coupling piece 6 that couples the bearing 4 to the washer 5 and/or separates itself from the washer 5 and the bearing 4 by a pressure force applied thereto, wherein the bearing, the washer and the coupling piece are integrally formed with each other, and the base flap 7 is formed with a projection 7b. Due to this construction, an operator can easily hold the bearing 4 and the washer 5 as one component, and as the coupling piece 6 can be readily removed by the projection 7b, a working efficiency for installing this device can be drastically improved, and the automated mounting operation thereof can also be easily implemented.
Abstract: An apparatus and method for displaying a caption broadcast and teletext on a wide screen of a double-wide television are provided in which a televised picture and a caption broadcast or teletext are separately displayed without any overlap. The apparatus includes first and second comb filters for converting first and second broadcast signals into luminance (Y) and chrominance (C) signals.