baber/WOPTO huggingface dataset:
Patent JP-2002151729-A (JP)
Title: Semiconductor device and its manufacturing method
Inventor: FUJISAWA TOMOTAKA
IPC: H01L31/103
Filed: 2000-11-13
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device equipped with a semiconductor photodetector which is improved in photo detection sensitivity by providing an antireflection film conducive to a reduction in both reflectivity and surface state density to the photodetector. SOLUTION: An antireflection film 8 formed of laminated film composed of a first insulating film 6 formed on a silicon substrate 1 and a second insulating film 7 whose refractive index is different from that of the first insulating film 6 is formed on the photo detection region 10 of a semiconductor photodetector PD for the formation of a semiconductor device. The first insulating film 6 is formed of a silicon oxide film that is obtained by oxidizing the surface silicon film of the semiconductor photodetector. When this semiconductor device is manufactured, an exposed silicon surface serving as the photo detector of the photodiode PD is thermally oxidized in an atmosphere of oxygen gas or a mixed gas of oxygen gas and hydrogen gas at a temperature of 800 deg.C or above for the formation of the silicon oxide film 6.
Patent JP-2002147803-A (JP)
Title: Humidity controlling ventilator
Inventor: NAGAO MITSUHISA
IPC: B01D53/26
Filed: 2000-11-15
Abstract: PROBLEM TO BE SOLVED: To reduce the input power of a heating means for supplying heated air to a humidity absorbing and discharging rotor, save energy and lower running cost in a humidity controlling ventilator having the humidity absorbing and discharging rotor. SOLUTION: The humidity controlling ventilator comprises a sensible heat exchanger (17) for performing a heat exchange between air passing both an air supply path (RS) and an air exhaust path (RE), the humidity absorbing and discharging rotor (19) made of a humidity absorbing material and arranged so as to be bridged over the air supply path (RS) and the air exhaust path (RE) and to freely rotate, a rotor driving means for driving to rotate the humidity absorbing and discharging rotor (19) and the heating means (20) disposed in the downstream side of the sensible heat exchanger (17) in the air exhaust path (RE) to supply the heated air to the humidity absorbing and discharging rotor (19).
Patent JP-2002147506-A (JP)
Title: Drum brake with shoe clearance automatic adjusting mechanism
Inventor: KAKIHARA TOMONORI
IPC: F16D51/24
Filed: 2000-11-16
Abstract: PROBLEM TO BE SOLVED: To accurately perform shoe clearance automatic adjustment by surely rotating an adjuster wheel with an adjuster lever. SOLUTION: An adjuster lever 52 is rotated around an attachment shaft 56 according to an expansion amount of a pair of brake shoes 12, 14 to rotate an adjuster wheel 44 with a pawl part 52a for shoe clearance adjustment. The adjust lever 52 is composed of metal spring plate material and the spring plate material is bent in a U shape. Consequently, the adjust lever 52 is positioned in an opposite side to the pawl part 52a over the adjuster wheel 44 and provides a sliding contact engagement part 52c allowing rotation of the adjuster wheel 44 in one direction while contacting and sliding on an outer circumference part to prevent shift of the pawl part 52a caused by rotation resistance of the adjuster wheel 44.
Patent JP-2001223009-A (JP)
Title: Positive electrode material for lithium secondary battery
Inventor: SHIZUKA KENJI
IPC: H01M10/05
Filed: 2000-11-20
Abstract: PROBLEM TO BE SOLVED: To improve both the cycle property and the rate property at higher temperatures in a positive electrode material for a lithium secondary battery containing a Spinel type lithium manganese oxide as an active substance. SOLUTION: This is the positive electrode material for the lithium secondary battery containing lithium copper oxide as the active substance, in which a part of Spinal type lithium manganese oxide and Cu site is substituted by at least one and more kind of other elements.
Patent JP-2002157579-A (JP)
Title: Instrument for displaying medical image
Inventor: USUI TETSUYA
IPC: G03B42/02
Filed: 2000-11-21
Abstract: PROBLEM TO BE SOLVED: To provide a medical image display instrument for instantaneously displaying a result obtained by processing an actual image simultaneously with the change of an image processing parameter and for adjusting the image processing parameter while confirming an actual effect. SOLUTION: The instrument is provided with an image data storage means 10 for storing image data, a parameter storage means 40 for storing the adjustable image processing parameter, a parameter changing means 50 for displaying the image processing parameter and permitting a user to change the image processing parameter, an image processing means 20 for processing the image by using the image processing parameter and an image display means 30 for displaying the image based on processed image data.
Patent JP-2002156396-A (JP)
Title: Time-frequency measuring device
Inventor: UJIIE HITOSHI
IPC: G04C9/04
Filed: 2000-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a time/frequency measuring device, capable of carrying out measurement by automatically determining whether a high-precision frequency signal fout generated by a reference frequency generating device is in a applicable state at a measuring side of a time/frequency measuring device, based on frequency accuracy information from the reference frequency generating device. SOLUTION: The time/frequency measuring device detects that frequency deviation information of the high-precision frequency signal outputted by an outside reference oscillator is within a prescribed frequency deviation as a target, and carries out measurement of a frequency or time of a signal to be measured by applying the high-precision frequency signal, based on the detection.
Patent JP-2002158117-A (JP)
Title: Core structure of stationary induction apparatus
Inventor: ITO MASAYOSHI
IPC: H01F37/00
Filed: 2000-11-22
Abstract: PROBLEM TO BE SOLVED: To reduce force acting on a core as compared with before. SOLUTION: One portion of the core 1 which a magnetic flux goes around is formed by a magnetic body 8 with a smaller permeability than others.
Patent JP-2002160118-A (JP)
Title: Slitter device in slitter machine
Inventor: TAMURA SOHEI
IPC: B23D19/06
Filed: 2000-11-22
Abstract: PROBLEM TO BE SOLVED: To provide a slitter device in a new slitter machine designed for extremely simply and easily replacing a cutter and a spacer for a horizontal cutter shaft. SOLUTION: The slitter machine slits a wide metal plate moving on a base into narrow metal plates with a slitter, and winds the slit narrow metal plates on a winder. A fixed bearing part is disposed outside one of moving passages on the base, and, outside the other of moving passages, a slide panel capable of being brought away from or close to the moving passage is provided and a movable bearing part is loaded on the slide panel. A pair of upper and lower horizontal cutter shafts are disposed between the fixed bearing part and the movable bearing part, an end of one of the horizontal cutter shafts is horizontally journalled to the fixed bearing part in the open side type, an end of the other of the horizontal cutter shafts is removably journalled to the movable bearing part, and the cutter and the spacer are alternately removably engaged with the horizontal cutter shafts.
Patent JP-2002162648-A (JP)
Title: Liquid crystal device
Inventor: ASAO YASUSHI
IPC: G02F1/1337
Filed: 2000-11-24
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal device provided with a liquid crystal element having uniform switching characteristics and high contrast. SOLUTION: The liquid crystal element 70 is provided with a pair of substrates 81a and 81b sandwiching a liquid crystal 85 and disposed opposite to each other so that the directions of uniaxial alignment treatment of the substrates are parallel and opposite to each other, the liquid crystal 85 showing a chiral smectic phase having >=4.pretilt angle on at least one substrate and polarizing plates 87a and 87b provided on at least the one substrate side. Such external voltage that the product Ps×Erms of the spontaneous polarization value (Ps) that the liquid crystal 85 has and the effective value electric field (Erms) applied to the liquid crystal 85 satisfies the relational formula Ps×Erms>15 [(nC/cm2)×(V/um)], is applied to the liquid crystal element 70 for a prescribed period or longer.
Patent JP-2002162088-A (JP)
Title: Remote monitor device and remote monitor system
Inventor: SUZUKI SATORU
IPC: H04Q9/00
Filed: 2000-11-27
Abstract: PROBLEM TO BE SOLVED: To collect all the operating information of an air conditioner stored in a remote monitor device by a central monitor device even when a communication between the remote monitor device and the central monitor device is disconnected. SOLUTION: The remote monitor device 14 monitors the operating states of air conditioners 11, 12 and 13. When the remote monitor device 14 detects the generation of abnormality in the air conditioners, the remote monitor device 14 calls the central monitor device 15 so that the central monitor device can collect the operating information of the air conditioners.  The remote monitor device 14 has a function for recalling the central monitor device while maintaining all the information upon abnormality of the air conditioners, when the communication between the remote monitor device and the central monitor device through a communication line 16 is disconnected before the remote monitor device receives a reading completion and instruction signal which is transmitted by the central monitor device when the central monitor device reads all the operating information of the air conditioners upon generation of abnormality.
Patent JP-2002164407-A (JP)
Title: Laser annealing equipment and its method
Inventor: SAWAI YOSHIKI
IPC: H01L21/68
Filed: 2000-11-27
Abstract: PROBLEM TO BE SOLVED: To provide laser annealing equipment by which yield in a semiconductor manufacturing is improved, and to provide its method. SOLUTION: The laser annealing equipment comprises a load lock chamber 10 for carrying in an out a semiconductor substrate, an annealing chamber where the semiconductor substrate, a semiconductor thin film being formed thereon, is subjected to annealing with a laser beam, a transfer chamber 11 by which the load lock chamber 10 and the annealing chamber are communicated under a vacuum atmosphere, a XY drive system that enables the stage 12A mounting the semiconductor substrate in the annealing chamber to move in X and Y directions, perpendicular to each other, including a semiconductor substrate surface, and a rotational drive system 10A for changing the transfer direction of the semiconductor substrate in the load lock chamber 10.
Patent JP-2002160086-A (JP)
Title: Laser beam machine
Inventor: KUMAMOTO KENJI
IPC: B23K26/066
Filed: 2000-11-28
Abstract: PROBLEM TO BE SOLVED: To provide a laser beam machine capable of executing shuttering operation of high cutting performance at a high speed. SOLUTION: In the laser beam machine, an acoustooptical element 21 and an acoustooptical element 22 are provided in an optical path of a laser beam to a work 7 from a laser oscillator 1. A λ/2 plate 31 is arranged between the acoustooptical element 21 and the acoustooptical element 22 each being in the optical path. The λ/2 plate is set at a rotational position so that a polarization plane of a laser beam incident on the acoustooptical element 21 conforms to a plane formed by a rotational position where the laser beam attenuation characteristics by the acoustooptical element 22 become maximum.
Patent JP-2002166263-A (JP)
Title: Water recovery utilization system
Inventor: TAKAHASHI HIDENORI
IPC: E03B3/32
Filed: 2000-11-29
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing water at a constant flow rate to reduce a utilization of a city water. SOLUTION: A rain water and/or a sea water besides a business establishment drainage are supplied to a pH controlling tank. Even if a discharge of drainage from a business establishment is not sufficient, this system can produces a sufficient amount of a treated water, which can be utilized for a boiler feedwater, or the like.
Patent JP-2002171755-A (JP)
Title: Dc-dc converter
Inventor: GEKITO MASAKAZU
IPC: H02M3/28
Filed: 2000-11-29
Abstract: PROBLEM TO BE SOLVED: To provide high efficiency for a DC-DC converter by suppressing the working frequency, so as to be low even when a light load is applied and a high voltage is inputted. SOLUTION: A DC power supply 1, a semiconductor-switching device 91, a transformer primary winding 21, and a capacitor 4 are connected in series, and a parallel circuit of a second semiconductor switching device 92 and a capacitor 5 is connected in parallel between the semiconductor-switching device 91, the transformer primary winding 21, and the capacitor 4, which are connected to gates of the devices 91, 92, respectively, via an output voltage detecting/regulating circuit 6 and a pulse width modulation control circuit 14 to operate the terminal voltage of the capacitor 4 so as to be a sine wave. Thus, high efficiency can be attained by suppressing an operating frequency so as to be low, even when a light load is applied and a high voltage is inputted.
Patent JP-2002171318-A (JP)
Title: Portable information equipment
Inventor: ENDO TAKASHI
IPC: H04M1/247
Filed: 2000-11-29
Abstract: PROBLEM TO BE SOLVED: To suppress easy or erroneous operation of agreement of a contract on portable information equipment. SOLUTION: In the portable information equipment provided with a reference button (3) for instructing an action to refer to a reference destination displayed on a display device (2), an agreement button (4) for instructing an action to agree with a contract and a refusal button (5) for instructing an action to refuse the contract, since the agreement button (4) and the reference button (3) are locate while being separated more than a fixed distance, an operator can be suppressed from easily or erroneously agreeing with the contract.
Patent JP-2002171157-A (JP)
Title: Semiconductor integrated circuit
Inventor: KURIYAMA ATSUSHI
IPC: H03K5/14
Filed: 2000-12-04
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit which can measure delay characteristics with respect to a plurality of factors causing propagation delay of a signal. SOLUTION: A ring oscillator is constituted of a NAND gate 14 and an inverter 13 (odd number of logic circuits in total) in an oscillation circuit part 26. A delay circuit part 12 having a plurality of circuits 16-19 different in propagation delay time of a signal and a selector 20 is disposed between the respective logic circuits. The oscillation circuit 26 contains 2-bit counter 15 which performs counting when an input signal to the ring oscillator changes. The selector 20 selects an output signal of the delay circuits 16-19 in accordance with a count value of the counter 15, and supplies the output signal to a logic circuit of the next stage. An output signal of the ring oscillator (output signal of the last stage delay circuit part 12) is supplied also to a frequency demultiplier 21 constituted of a plurality of flip-flops 22.  An oscillation frequency is measured with an output signal of the frequency demultiplier 21.
Patent JP-2002175784-A (JP)
Title: Battery
Inventor: NEMOTO SEIJI
IPC: H01M2/04
Filed: 2000-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a battery by which production cost can be reduced by disusing heat-welding of a cover 3 to an opening part of a battery jar 2 so as to simplify a structure of the cover 3 and so on and by reducing the number of parts. SOLUTION: The battery is so structured that the cover 3 is engaged with an upper end opening part of the battery jar 2 having an exhaust hole 2c, and a ring valve 8 is externally fitted into an outer peripheral surface 2a, 3b of an adjacent part of the engagement.
Patent JP-2002174522-A (JP)
Title: Vics receiver
Inventor: NIHEI TAKAHIRO
IPC: G01C21/26
Filed: 2000-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a VICS receiver which achieves a significant reduction in the display of unnecessary data due to radio beacon signals by discriminating running roads utilizing the intensity of received electric fields of the radio beacon signals and a map matching function of a car navigation system concerning the VICS receiver. SOLUTION: A detection part 5 for the intensity of received electric fields of radio beacons detects the intensity of a received electric field from a signal of a radio beacon from a radio/light beacon receiving part 3 to be transmitted to a beacon signal processing part 4. The beacon signal processing part 4 decodes a base band signal of the radio beacon signal converted to generate a VICS data when the intensity of the received electric field of the radio beacon signal exceeds a present value. It skips the decoding of the base band signal of the radio beacon by judging that running is made on an ordinary road when the intensity of the received electric field of the radio beacon does not exceed the preset value.
Patent JP-2002174619-A (JP)
Title: Gas sensor
Inventor: MATSUNOSAKO HITOSHI
IPC: G01N27/409
Filed: 2000-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a gas sensor having a sealing structure exhibiting a highly hermetic sealing characteristic when being installed to a metallic case while securing excellent durability even in a severe environment. SOLUTION: This gas sensor formed into a cylindrical shape is provided with a detection part constructed of a pair of electrodes 3 and 4, which are formed on both of the outside and inside main faces in the vicinity of the front end of a cylindrical solid electrolyte base body 2, for detecting an environmental condition, a heating part constructed of a heating resistor 8, which is buried inside a ceramic insulating layer 6 formed on the outside surface of the base body 2, for heating the detection part, and terminal parts 11 and 18 arranged in the vicinities of the rear end of the base body 1. Between the detection part and the terminal parts 11 and 18, a ceramic member 21 for hermetically sealing a clearance with respect to a case body housing the gas sensor 1 is formed integrally by simultaneous burning with the detection part and the heating part.
Patent JP-2002180854-A (JP)
Title: Control device for electromagnetic variable valve timing device
Inventor: HOSOYA HAJIME
IPC: F01L1/34
Filed: 2000-12-08
Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic variable valve timing device using the friction braking force of an electromagnetic brake for advancing the phase angle of a cam to a crackshaft against spring force energized to a phase lag side, permitting the hitting sounds of a stopper to be reduced during return to a stopper position on the phase lag side. SOLUTION: A control signal for the electromagnetic brake is determined from a feedforward component computed corresponding to a target rotation phase and a feedback component computed in accordance with a deviation of a rotation phase. In a rotation phase region of a predetermined advance or smaller, the feedforward component is set to be shifted closer to an advance side than the feedforward component required corresponding to the rotation phase so that delayed return to the stopper position is established and the hitting sounds of the stopper is reduced for a period when a shift component is absorbed by feedback control.
Patent JP-2002182438-A (JP)
Title: Image forming device
Inventor: ITAGAKI SEIKO
IPC: G03G15/00
Filed: 2000-12-11
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of realizing the improvement of toner image transfer performance to an intermediate transfer body or transfer material in the case of transferring a monochrome toner image formed on an image forming body to the intermediate transfer body or the transfer material. SOLUTION: In this image forming device, a developing means for transparent toner to form the toner image by the use of transparent toner and a developing means for color toner to form a toner image by the use of color toner are disposed as a pair around the image forming body.
Patent JP-2001324708-A (JP)
Title: Liquid crystal display device and method for manufacturing the same
Inventor: SEKINE HIROYUKI
IPC: H01L29/786
Filed: 2000-12-12
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device and a method for manufacturing the device in which alignment abnormality in liquid crystal molecules is not caused or the picture quality does not deteriorate. SOLUTION: The liquid crystal display device comprises a TFT substrate 1 on which thin film transistors(TFTs) as active elements are formed, a counter substrate 2 on which a common electrode common for each pixels is formed, and a liquid crystal layer 115 formed by filling the gap between substrates. In this device, the TFT substrate 1 consists of a transparent substrate 100 and the following layers successively formed on the substrate. The layers are a lower light-shielding film 101, base film 102, TFT, first interlayer insulating film 107, line metal film 108, second interlayer insulating film 109, third interlayer insulating film 111, flattening film 112, transparent electrode film 113 and alignment film 114. The counter substrate 2 consists of a transparent substrate 118 and a transparent electrode 117 and an alignment film 116 successively formed on the substrate.  The flattening film 112 consists of a transparent acrylic resin which does not absorb light at >=300 nm wavelength.
Patent JP-2002177678-A (JP)
Title: Sewing machine
Inventor: KADOWAKI SHINJIRO
IPC: D05B63/00
Filed: 2000-12-13
Abstract: PROBLEM TO BE SOLVED: To draw out an end of a needle thread to the underside of a fabric by restricting amount of feeding of the needle thread of the first needle stitch by a simple constitution and to avoid to draw out the needle thread when the fabric is taken out by restricting the amount of feeding of the needle thread when a sewing needle is stopped at the top dead point after the thread is cut. SOLUTION: A hook 5 is up and down movably disposed on the front HF of the head part H of a sewing machine and after the thread is cut, before the sewing needle 1 moved to the top dead point, the needle thread T is pinched by the top face 5a and a pinching piece 7 by elevating the hook 5. In addition, when operation of the sewing machine is started and a thread take up lever 4 is lowerd once and then it is elevated to reach the top dead point, the hook 5 is lowered.
Patent JP-2002146602-A (JP)
Title: Foot-wrapping member
Inventor: HIGUCHI NORIKO
IPC: A41B11/00
Filed: 2000-11-07
Abstract: PROBLEM TO BE SOLVED: To provide a foot-wrapping member capable of preventing the thermoregulatory function inherent in the human body from being spoiled, and causing no stuffiness on wearer's feet. SOLUTION: This foot-wrapping member is characterized by the following features: the sole part of a foot-wrapping member is made of a raw material having high air-permeability, an opening part is formed on the sole part, projections for giving impulse to pressure points toward the direction of the sole part of the foot-wrapping member are provided, and the foot-wrapping member is so designed as to be prevented from getting off by itself while a wearer is in bed, or from fastening the wearer's ankle.