baber/WOPTO huggingface dataset:
Patent JP-2000178098-A (JP)
Title: Heat treatment of silicon wafer
Inventor: MATSUNO TOMOYUKI
IPC: C30B29/06
Filed: 1998-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a heat treatment process which enables reduction in oxygen concentration in a wafer to a level required for forming a semiconductor device having excellent properties from the wafer. SOLUTION: This treatment process comprises: subjecting a silicon wafer to heat treatment in a hydrogen atmosphere at 1,100-1,200 deg.C; and subsequently, subjecting the heat-treated wafer to polishing treatment in such a way that a DZ(denuded zone) layer having a >=5 μm thickness remains in the wafer surface; wherein in the heat treatment stage, a silicon wafer having 11.0-13.0×1017 atms/cm3 interstitial oxygen concentration is subjected to heat treatment for a 10-30 min heat treatment time. By subjecting the wafer to hydrogen annealing treatment to reduce oxygen concentration in the wafer, the junction leak current in the region from the wafer surface layer to the depths of several μm can be reduced.  By polishing the DZ layer, the asperity of the wafer surface and also the interface micro-roughness can be improved, to realize a silicon water capable of forming a semiconductor device having excellent operating speed characteristics and high insulation resistance.
Patent JP-H11186593-A (JP)
Title: Semiconductor light-emitting device and its manufacture
Inventor: IWATA HIROSHI
IPC: H01L33/42
Filed: 1997-12-25
Abstract: PROBLEM TO BE SOLVED: To increase light-emitting efficiency, light-emitting luminance of a light-emitting display device, and facilitate forming, and to increase the yield. SOLUTION: Semiconductor thin chips 14 which are constituted of clad layers 12 and active layers 13, 100 μm or less in thickness and 1 mm or less in size and laminated in a film form on a substrate 11, and a light-emitting film 15 is formed. A forbidden bandwidth of the clad layer 12 is larger than that of the active layer 13. When light having a wavelength the energy of which is larger than the forbidden bandwidth of the active layer 13 is irradiated, or an electron beam is bombarded onto it in vacuum, electrons and positive holes are generated in the active layer 13, which are recombined to generate a light. Since the forbidden bandwidth of the clad layer 12 is larger than that of the active layer 13, electrons and positive holes are confined in the active layer 13, so that luminous efficiency is high, and deterioration is hardly generated.
Patent JP-H05182999-A (JP)
Title: Semiconductor device
Inventor: NAKAYAMA TAKASHI
IPC: H01L23/31
Filed: 1991-12-26
Abstract: PURPOSE:To obtain a potting-sealed semiconductor device wherein problems in a potting operation are eliminated and its heat-resistant property and its thermal stress-resistant property are excellent by a method wherein a room- temperature glass is used as a potting sealing material. CONSTITUTION:A semiconductor element 2 is mounted on a substrate 1; it is bonded by means of wires 3; after that, the circumference of the semiconductor element 2, the wires 3 and their connecting parts is potting-sealed with a room-temperature glass 4. Then, since the room-temperature glass does not absorb any moisture, the moistureproofness of the title device is enhanced. In addition, since the coefficient of thermal expansion of the glass is close to that of the semiconductor element 2, the thermal stress-resistant property of the title device is enhanced. When a pigment is mixed with the room- temperature glass 4 and the glass is colored, the glass can play a light-sheilding role. Thereby, the semiconductor element which is fragile to heat can be potting- sealed. When the pigment is mixed with the room-temperature glass, the glass can be colored. As a result, the glass can be applied widely from the sealing operation of general ICs to the sealing operation of photosensors.
Patent JP-H06179410-A (JP)
Title: Band take-up method for packing machine
Inventor: SAKAKI YASUNORI
IPC: B65B13/22
Filed: 1992-12-08
Abstract: PURPOSE:To make the rotational adjustment of a reel easier and simplify the device by a method wherein an excessive band is taken up by reversing a reel which is linked to a driving source by an electromagnetic clutch to pull back the excessive ban. CONSTITUTION:A band 20 which is wound on a reel 12 is fed to a band way of an arch by a feeding roller 1 being driven by a motor 4. In this case, when a reversing roller at a sealing part starts reversing, power is connected to an electromagnetic clutch 5 by driving a motor 6 which is the driving source, and the reel 12 is reversed by the electromagnetic clutch 5 to pull back the band 20 in the arch, and the band 20 is wound around an object to be packed. In this case, an excessive band 20 is wound back to the reel 12 by the reversal rotation of the reel 12. Also, a pulley 7 of the motor 6 to rotate the electromagnetic clutch 5 and a pulley for the electromagnetic clutch 5 are made to be a double pulley on which two belts are wound. In addition, the rotation of the motor 6 to rotate the electromagnetic clutch 5 can be freely controlled by an appropriate setting of the parameter function of an inverter 9.
Patent JP-H10190463-A (JP)
Title: Signal processor
Inventor: SEKI HIDEO
IPC: H03M1/36
Filed: 1996-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a circuit for eliminating the need of adjustment work after production and being suitable for being made into an integrated circuit by providing the (n) kinds of reference voltage generation circuits and comparator circuits for analog signals inputted from the outside and outputting first and second corresponding digital signals by the comparison of an analog voltage and a reference voltage. SOLUTION: As the reference voltage generation circuits, +400mV, +200mV, 0V, -200mV and -400mV are respectively provided. The AC component of the analog signals (a) from the outside is turned to 10mV (amplitude of AC component), a DC offset is turned to 13mV and the amplification factor of an amplifier circuit 10 is turned to 20 times. The amplifier circuit 10 amplifies the inputted analog signals (a) and outputs the analog signals A for which the DC offset is 260mV and the AC component is 200mV. The comparator circuit 121 outputs L level signals since the analog signals A are smaller than +400mV. The comparator circuit 122 outputs the rectangular wave signals of an H level in a part larger than +200mV and of an L level in the smaller part.
Patent JP-2000160471-A (JP)
Title: Doctor
Inventor: IIOKA MUTSUMI
IPC: B05C11/04
Filed: 1998-12-01
Abstract: PROBLEM TO BE SOLVED: To strongly form skid-proof rows by tightly applying a skid-proof resin composition, directly or via a lining base cloth, on the backside of a matting to be used by placing on a floor, leaving the resin-uncovered cloth surface between rows. SOLUTION: A doctor is constructed with a bottom board 12, which comes into face contact with a cloth 11 spread and transported, and a front board 13 continuously rising from the bottom board 12 vertically against the cloth 11. Plural lines of groove holes 14 are formed on the bottom board 12 and the front board 13, continued between them, with a specified pitch in the width direction of the cloth 11 transported in face contact with the bottom board 12. A groove hole 14 formed on the bottom board 12 is let a long groove hole 15 parallel to the transporting direction of the cloth 11 which is transported in face contact with the bottom board 12.  A resin composition passes through the spaces of the long groove holes 15 of the bottom board 12, touches the cloth 11 for a constant time corresponding to the length of the long groove hole 15, a part of the resin soaks into the cloth 11 during this time, and the resin is scraped at the upper ends of the vertical groove holes 30. Thus, the resin prepared even in high thickness tightly sticks on the cloth 11 and can form hardly separable rows 31.
Patent JP-2001176420-A (JP)
Title: Color cathode-ray tube
Inventor: ONISHI KEIJI
IPC: H01J29/07
Filed: 1999-12-17
Abstract: PROBLEM TO BE SOLVED: To solve problems such as deformations of a frame and a mask in the process, after the mask is spread. SOLUTION: In a color cathode-ray tube consisting of the mask, a pair of a first frame that supports the mask, and a pair of a second frame that supports the first frame, cross-sectional shape of the first frame is constituted, so that it is triangular, with a collar and distance between welded portion of the first frame to determine the collar length and R face becomes constant along lengthwise direction of the first frame.
Patent JP-H10185793-A (JP)
Title: Measuring method for particle size and its distribution state
Inventor: TOKUDA YOSHIYUKI
IPC: G01N15/02
Filed: 1996-12-24
Abstract: PROBLEM TO BE SOLVED: To obtain a measuring method in which a particle size and its distribution state can be measured simply by a method wherein a fine-particle blank, a turbid substance in a turbid liquid or a foreign body in a foreign-body mixed liquid is magnified as a beam of image light and it is image-formed by a CCD camera so as to be converted into an electric signal. SOLUTION: An object 1 to be measured such as a fine-particle blank, a turbid liquid in which a turbid substance is mixed or a mixed liquid in which a foreign body is mixed is dropped onto the surface of a translucent plate material 2. Then, a beam of light from a light-emitting lamp 3 is converged by a lens 4 so as to be irradiated from the lower part of the translucent plate material 2. A CCD camera 7 by which an image magnified by a lens 5 and by a lens barrel 6 is converted into an electric signal is installed at the upper part of the translucent plate material 2. The electric signal which is converted by the CCD camera 7 is subjected to an image display processing operation for measurement by an image processor 8.  An alogorithm which discriminates and displays the image for every size in a prescribed range and an algorithm which displays the image by color are built in the image processor 8, and a grain size and its distribution state are displayed on a display 8A.
Patent JP-H11194390-A (JP)
Title: Image input device provided with light quantity adjusting device
Inventor: SATO OSAMU
IPC: G03B9/02
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To finely adjust light quantity by controlling the charge storage time of an image pickup element so that a difference between image pickup light quantity at a desired diaphragm value and previously set light quantity may be compensated. SOLUTION: The image pickup element 22 measures the incident image pickup light quantity and outputs the measured result as image pickup light quantity information to an exposure control circuit 23. A diaphragm value detection circuit 27 detects the present diaphragm value and outputs the detected result as diaphragm value information to the circuit 23. The circuit 23 sets an aimed diaphragm value based on the diaphragm value information and the image pickup light quantity information so that the image pickup light quantity may be an appropriate one and outputs it to a diaphragm control circuit 25. Then, the circuit 23 obtains such shutter speed that a difference between the image pickup light quantity at the aimed diaphragm value and the appropriate light quantity is compensated and outputs it to an electronic shutter control circuit 24.  The circuit 24 varies the charge storage time of the element 22 so as to adjust the shutter speed, and controls the element 22 so that the image pickup light quantity may be optimum.
Patent JP-H10199204-A (JP)
Title: Title storage medium, and method of repeatedly writing title onto surface of storage medium such as mo
Inventor: YOSHIYA KAZUMI
IPC: G11B23/38
Filed: 1996-12-26
Abstract: PROBLEM TO BE SOLVED: To eliminate a manual operation of writing a title and the like for indicating contents on a label or the like and attaching it by attaching a rewritable title storage medium on a surface of a storage medium such as an MO and writing the title onto the title storage medium by using a readout and writing apparatus. SOLUTION: A title storage medium 2, onto which a title indicating the contents is to be written, is attached onto a storage medium 1 such as an MO, and the resultant medium is inserted into a storage medium readout and writing apparatus 7 to which a title writing apparatus 8 is attached. The title storage medium 2 is formed of a rewritable sheet-like medium containing a magnetic material. By sending a writing instruction to the title storage medium 2 in accordance with a writing instruction from a control apparatus 9 to the storage medium 1, characters and figures indicating the contents of the storage medium 1 are written onto the title storage medium 2. This writing method does not require a rewriting operation when the contents are changed.
Patent JP-2001073785-A (JP)
Title: Supercharging system for automobile
Inventor: RI SHOSHO
IPC: F02B33/44
Filed: 1999-12-20
Abstract: PROBLEM TO BE SOLVED: To enable to acquire similar efficiency to existing supercharger with a simple structure where air compression measure rotates by taking motive power from cam of engine to always obtain effective supercharging pressure, and to save cost and cut weight of system by curtailing the number of components and simplifying the structure. SOLUTION: This system is so constructed that the rear end of cam 10 of engine is partly extended outside cylinder block to connect to turbine 12, and at same time, air compression chamber is fitted around turbine 12, and inlet and outlet of compressor 13 are connected to air-cleaner 14 and throttle valve 15, respectively, to form supercharging lines 16a, 16b.
Patent JP-H10251513-A (JP)
Title: Photo-orientational composition, oriented membrane formed from the same and liquid crystal display device having the same
Inventor: RYU KANSEI
IPC: G02F1/1337
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To obtain a photo-orientational composition excellent in thermal stability of orientation, capable of producing an oriented membrane or a liquid crystal display device having the prescribed membrane by including a polyimide having a specific group. SOLUTION: This composition contains the polyimide having a cinnamate group in the side chain. The prescribed polyimide is selected from compounds of the formula [R1 is a 3-10C (substituted) cycloalkyl, a (substituted) cycloalkenyl; R2 is an (substituted) aromatic ring, a 3-10C (substituted) cycloalkyl, etc., X1 is -OCO-, -COOCO-; R3 is H, a halide, a (substituted) 1-10C alkyl, etc.], preferably, having weight average molecular weight of 5×10<3> -2×10<5> . The polyimide is obtained by mixing an acid anhydride, a diamine compound and a solvent, reacting at 0 deg.C-ambient temperature for 24 hours to afford a polyamic acid followed by imidation.
Patent JP-2000179620-A (JP)
Title: Vibration control device
Inventor: YOSHIDA MITSUHIRO
IPC: F16F15/04
Filed: 1998-12-18
Abstract: PROBLEM TO BE SOLVED: To provide a vibration control device for improving a vibration damping effect by easily obtaining a vibration damping characteristic adapted to vibration transmitted to bellows without being influenced by an individual characteristic and a fastening state of vibration control rubber. SOLUTION: In a vibration control device for damping vibration of bellows by a vibration control material connected to the bellows by transmitting vibration to the bellows interposed between flanges connected to a vibration source, the vibration control material is constituted by combining a vibration control material composed of a high damping material having low rigidity and large vibration damping capacity and a vibration control material having higher rigidity than this to obtain a vibration damping characteristic adapted to vibration transmitted to the bellows. A solid plate and a solid grain are embedded in the vibration control material to enhance a vibration transmission rate in the vibration control material.
Patent JP-2001178079-A (JP)
Title: Forced cooling type totally enclosed dynamo-electric machine
Inventor: TAKAGI SEIZO
IPC: H02K9/06
Filed: 1999-12-20
Abstract: PROBLEM TO BE SOLVED: To provide a forced cooling type totally enclosed dynamo-electric machine, where the stator winding is not contaminated, even if it is installed under severe environment, and the service life of bearing lubricant can be prolonged, and the interval between maintenances is long, and moreover the noise is low. SOLUTION: An air guide casing 20, which introduces cooling air sent from an electromotive fan 40 into the outside flank of a bracket 10 on the opposite side to the direct coupling of a totally enclosed induction motor 17 and discharges it in the direction parallel to the outer wall of a frame 1, is attached to the outside flank of the bracket 10 on opposite side to direct coupling so that it surrounds the mounting section of the bracket 10 and a bearing 11 on the opposite side to direct coupling within a ventilation path, and an air guide cover 16, which guides cooling wind in the direction parallel to the mounting part of a bracket 12 and a bearing 13 on the side of direct coupling, is attached to a frame 1 and the bracket 12 on the side of direct coupling, and a rotary shaft 35 is provided with a ventilation hole 36,  which opens within the ventilation path of the air guide casing 20 and also opens in the surface of the rotary shaft 35 in the vicinity of the mounting part of the bearing 12 on the side of direct coupling.
Patent JP-H04296228-A (JP)
Title: Clutch/brake-unit
Inventor: MAIKURU EFU REONU
IPC: F16D67/06
Filed: 1991-12-27
Abstract: PURPOSE: To provide a wrap spring clutch/brake unit which can briefly adjust spring differential motion in comparison with a conventionalone, without shifting tongues of a clutch spring and a brake spring from a cutout to a cutout. CONSTITUTION: Tongues 26, 27, 38, 39 of a clutch spring 25 and a brake spring 37 in a wrap spring clutch/brake unit 10, are coupled with one another so as to separate sleeves 40, 50 from each other, which form a control collar 30 in the clutch/brake unit. The sleeves 40, 50 are coupled so as to be synchronously rotated with each other in order to normally adjusting differential torsional motion of the springs by means of a splined internal tooth ring 51 for sliding the sleeves to a release position where the sleeves are rotated from each other.
Patent JP-2001170167-A (JP)
Title: Method of manufacturing dialyzer and method of sterilization
Inventor: OZAWA HIDETOSHI
IPC: B01D61/28
Filed: 1999-12-21
Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a dialyzer for treating blood that elutes only little a hydrophilic polymer, is lightweight and easy to handle and a semipermeable membrane for treating blood suited thereto, and a method of sterilization. SOLUTION: In a method of manufacturing a dialyzer storing a semipermeable membrane containing a hydrophilic polymer and a hydrophobic polymer as components, the semipermeable membrane is made to hold water accounting for 100 to 600% of the self-weight of the membrane and the dialyzer is internally given an atmosphere of inert gas and then irradiated with gamma radiation. A method of sterilization of a dialyzer storing a hydrophilic polymer and a hydrophobic polymer as components, the dialyzer is made to hold water accounting for 100 to 600% of the self-weight and then internally given an atmosphere of inert gas and then irradiated with gamma radiation.
Patent JP-2000185050-A (JP)
Title: Medical replaceable knife
Inventor: SAITO TATSUYA
IPC: A61B17/32
Filed: 1998-12-21
Abstract: PROBLEM TO BE SOLVED: To support a blade firmly against a holder and to facilitate operations for attaching and removing the blade to and from the holder during replacement of the blade. SOLUTION: A blade 2 is placed on a blade overlapping surface 7a and supported against a holder 1 while a fitting hole 18 and a fitting projection 8 are removably fitted together in such a way as to be movable relative to each other in a direction B generally perpendicular to the pressure contact surface 2a of the blade 2. A blade clamping slider 3 supported against the holder 1 moves in the extending direction of the blade 2 and can take a blade clamp releasing position and a blade clamping position Q. The holder 1 and the blade clamping slider 3 can make sliding contact with each other on their sliding surfaces 13a, 14a, 23a, 26a. In the blade clamp releasing position, the blade clamping slider 3 is separated from the blade 2 on the blade overlapping surface 7a.  In the blade clamping position Q, the sliding surfaces 13a, 14a, 23a, 26a are clamped into contact and the pressure contact surface 2a of the blade 2 is clamped between the pressure contact 30 of the blade clamping slider 3 and the blade overlapping surface 7a to prevent separation of the blade 2 in the direction B of the relative movement.
Patent JP-H11183207-A (JP)
Title: Measurement method for breaking of river bank using optical fiber
Inventor: MAMIYA KIYOSHI
IPC: G01V9/00
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To make relatively easily, securely, and time-sequentially measurable breaking of river bank in real time. SOLUTION: A boring hole 14 is diagonally dug in ground toward a river bank 10 that is a measurement object. For instance, a lot of small pieces (for example, wood pieces 16) wound with an optical fiber 18, which are arranged in a row successively so that each small piece of an optical fiber constitutes one-long optical fiber, is inserted into the boring hole 14 and also each piece is respectively fixed to ground by a filler 20. Also, length of an optical fiber is measured by measuring a reflection-return light from an end face of the optical fiber by an incident light into the optical fiber. Breaking of a river bank is calculated from quantity of lost small pieces by detecting that the optical fiber is cut and shortened by small pieces flown out corresponding to the breaking of the river bank.  The breaking conduction of the river bank can be grasped by placing small pieces wound with the optical fibers to a plurality of boring holes dug.
Patent JP-H11185864-A (JP)
Title: Water-proof connector
Inventor: TANAKA HISATOMI
IPC: H01R13/52
Filed: 1997-12-17
Abstract: PROBLEM TO BE SOLVED: To prevent damage to a water-proof connector and separation of an electric wire due to unexpected load application and to improve durability of the connector in severe use conditions. SOLUTION: While the upper side part of the connector main body 2 being exposed out of a window part, the connector main body 2 integrally constituted with a cover body 7 is firmly fitted and held in a case 11 through elastic insulating bodies 18, 18' having guide holes 19, 19' communicated with an insertion hole 5 formed in a side face of a connector main body 2, so that unexpected load application is prevented due to a rubber case housed in this connector and damage to the connector and disconnection of an electric wire can be avoided. Further, since the connector is made water-proof by the elastic insulating bodies, corrosion of a spring is suppressed and durability is improved even in the case that the connector is used in a high temperature and high humidity place and in a place where the connector is directly wet with water splash.