baber/WOPTO huggingface dataset:
Patent JP-2000319099-A (JP)
Title: SiC WAFER, SiC SEMICONDUCTOR DEVICE AND PRODUCTION OF SiC WAFER
Inventor: MATSUNAMI HIROYUKI
IPC: H01L21/28
Filed: 1999-05-07
Abstract: PROBLEM TO BE SOLVED: To obtain a SiC wafer in which anisotropy in the electron mobility is small and deformation due to lattice mismatching between a SiC substrate and a SiC epitaxial growing layer can be reduced by forming a SiC buffer layer on the SiC substrate having each specified plane orientation and polytype. SOLUTION: A SiC substrate having the plane orientation of almost (11-20) and 4H polytype or 15R polytype is used. A 4H-SiC(11-20) substrate 2 is obtd., for example, by growing an ingot by an improved Rayleigh method on a 4H-SiC(000-1) plane, slicing the ingot parallel to the growing direction, and polishing the surfaces into mirror faces. The thickness of the substrate 2 is specified to 150 to 400 μm. A buffer layer 4 and an active layer 6 are to be epitaxially grown by a chemical vapor phase deposition method. Practically, after the substrate 2 is subjected to vapor phase etching with a HCl/H gas, the substrate 2 is heated and a source gas (e.g. silane and propane) is introduced to grow a buffer layer 4 (to 0.3 to 15 μm thickness) and an active layer 6 (to 5 to 80 μm thickness).
Patent JP-H07331015-A (JP)
Title: Plasticizr for acrylic rubber
Inventor: SAITO KAZUO
IPC: C08L33/04
Filed: 1994-06-09
Abstract: PURPOSE:To provide a plasticizer for acrylic rubber which comprises a specific polyether plasticizer and a linear polyester plasticizer and can be formulated in acrylic rubber to be used as a packing for vehicles because it is excellent in compatibility, processability, moldability and resistances to heat, coldness and oil. CONSTITUTION:This plasticizer for acrylic rubber comprises (A) a polyether plasticizer of a condensate of a polyoxyethylene monoalkyl ether prepared by addition reaction of 4-8 moles, on the average, of ethylene oxide to a monoalkyl alcohol of 6-18 carbon atoms such as n-hexanol with an aliphatic dicarboxylic acid such as adipic acid and (B) a linear polyester plasticizer of 800-1,600 number average molecular weight which is prepared by polycondensation reaction of an aromatic ring-free aliphatic glycol with an aliphatic dicarboxylic acid and terminating the polymer chain with an alkyl monoalcohol or monocarboxylic acid. The weight ratio of the component A/the component B is preferably in the range of (30-70)/(70-30).
Patent JP-H0422190-A (JP)
Title: Printed circuit board with exposed internal layer pattern and manufacture thereof
Inventor: SATO FUMITAKA
IPC: C25D7/00
Filed: 1990-05-17
Abstract: PURPOSE:To enhance an interconnection density and to diffuse heat by a method wherein, at a printed circuit board where an external layer through hole which is conductive across external layer patterns on the surface and the rear and one part of an internal layer pattern is exposed from a cavity, a plurality of conductive internal layer through holes are formed between the external layer patterns on the rear from the internal layer pattern of the cavity. CONSTITUTION:A laminated base material 1 which is provided with the following is formed: a cavity part 4 in which an internal layer pattern 5 is exposed; and internal layer through holes 6 from the cavity part 4 to the rear. An internal layer through-hole copper plating operation 9 is executed to the through holes 6. After that, at least before an external layer through-hole copper plating operation 8 is executed to external layer through holes 3 made across the surface and the rear of the base material 1, the cavity part is filled with a resin 11 which is resistant to an external layer through- hole plating liquid and an etching liquid so as to be buried. Then, the through-hole copper plating operation 8 is executed to the whole surface; after that, etching resist films 12 are formed on both the surface and the rear; and an external layer pattern 2 is formed by an etching operation. After that, said filled resin 11 and the etching resist films 12 are removed.
Patent JP-S5918635-A (JP)
Title: Mask for x-ray lithography
Inventor: OOHAYASHI HIDEHITO
IPC: G03F1/60
Filed: 1982-07-23
Abstract: PURPOSE:To obtain a film as thin as 1mum, which cannot be obtained only from Si, under the stabilized tensile condition by forming a mask substrate with a stacked film of the thermally processed polycrystalline Si film and Si3N4 film on the occasion of obtaining an X-ray lithography mask through formation of heavy metal pattern of the predetermined shape on the base material of mask. CONSTITUTION:The surface of Si substrate 1 in orientation of <100> is polished like the mirror surface and an Si3N4 film 2 is generated thereon in the thickness of 500-1,500Angstrom  by the CVD method, and further a polycrystalline Si layer 3 is then deposited thereon in the thickness of 5,000-20,000Angstrom  also by the CVD method. In this case, SiH4+NH3 is used for formation of film 2 and SiH4 is used for formation of the layer 3. Thereafter, the layer 3 is heated up to a temperature of about 490 deg.C under the N2 ambient, and the layer is irradiated by the Ar laser. Next, the layer is etched from the lower surface of substrate 1 while the periphery is left. Thereby, a stacked film consisting of the film 2 and film 3 having strain between the peripheral parts can be obtained.
Patent JP-H10318366-A (JP)
Title: Hydraulic apparatus for hydrostatic transmission
Inventor: IKEDA KENJI
IPC: F16H61/42
Filed: 1997-05-16
Abstract: PROBLEM TO BE SOLVED: To set a tilt angle of a cylinder block easily by arranging a piston stopper for restricting a movable angle of a tilt control piston for changing a tilt angle of a cylinder block, on a piston moving direction freely to regulate positioning in a same direction as a piston moving direction. SOLUTION: In a hydraulic motor of a hydrostatic transmission for driving front and rear wheels of a vehicle such as wheel loader, a tilt angle of a cylinder block of a driving shaft is regulated by a slant rotating control part 21. A piston stopper 28 is arranged in a head part 27 of the tilt control part 21, and the movable range of a piston 25 is restricted by the piston stopper 28 so as to restrict that the tilt angle of the cylinder block is set to a constant angle and less. In this case, the piston stopper 28 is arranged freely to regulate a positioning in the same direction as the moving direction of the piston 25 by a regulating part 30. It is thus possible to regulate the moving range of the piston 25, namely, it is possible to regulate the minimum tilt angle of the cylinder block.
Patent JP-S63290758-A (JP)
Title: Dot printer head
Inventor: FUKUSONO HIDEKI
IPC: B41J2/28
Filed: 1987-05-25
Abstract: PURPOSE:To obtain a printing quality stable to temperature change, by a method wherein, a permanent magnet is projected from an auxiliary yoke, magnetic bodies which are slidably in contact with the peripheral surface of the auxiliary yoke and disposed facing the projected face of the permanent magnet through bimetals are provided, while the bimetals are made to be curved at a room temperature and is flat at a high temperature. CONSTITUTION:A permanent magnet 4 having a ring form is formed to be larger in outer diameter than an auxiliary yoke 5 by a predetermined amount. Magnetic bodies 13 are so disposed due to the attraction force of the permanent magnet 4 as to be slidably in contact with the peripheral surface of the auxiliary yoke 5 and as to face a projected upper face 4a of the permanent magnet 4 through bimetals 14. The bimetals 14 are curved at a room temperature and turned to be flat at a high temperature of about 100 deg.C. At a room temperature, a large distance between the magnetic bodies 13 and the projected upper face 4a slightly lowers the flux use ratio of the permanent magnet 4. On the contrary, at a high temperature, a small distance between the magnetic bodies 13 and the projected upper face 4a increases the flux use ratio of the permanent magnet 4. As a result, the flux quantity of the permanent magnet 4 in a magnetic path is approximately constant at a room temperature or at a high temperature.
Patent JP-S5251955-A (JP)
Title: Optical semiconductor device
Inventor: NAMIOKA HIROBUMI
IPC: G02F1/313
Filed: 1975-10-23
Abstract: PURPOSE:To efficiently perform photomodulation by providing at least two semiconductor layers each having at least one electrode on one surface of a semiconductor substrate having on the other surface an electrode.
Patent JP-S62284597-A (JP)
Title: Adapter exchange
Inventor: HASHIMOTO KAZUO
IPC: H04Q1/50
Filed: 1986-06-02
Abstract: PURPOSE:To offer switching service automatically even by a 2nd exchange having conventional functions by sending out a dial signal from the 1st exchange after converting it into the dial signal of the 2nd exchange in an adapter exchange. CONSTITUTION:When a trunk line trunk 4 receives an incoming signal from a dial-in trunk line in the adapter exchange 3, that is reported to a control part 8, which controls a network 7 so as to connect the trunk line trunk 4 and a receiving and transmitting register trunk 5. The trunk 5 sends out a pushbutton telephone signal or dial pulse signal corresponding to a switching number to an existent exchange 2 through a trunk 6. Consequently, the existent exchange 2 handles the signal just like a signal sent from an extension telephone set and mutual connection between extension is made by its intra-office trunk 12; and a subscriber telephone set 14 is called and telephone call processing is carried out.
Patent JP-S5252120-A (JP)
Title: Process for floatation oflead, zn ore
Inventor: OOYA NAOHIKO
IPC: B03D1/06
Filed: 1975-10-25
Abstract: PURPOSE: To separate lead ore efficiently in lead ore separation step in the floatation of leas, zinc ore of high mimetite [Pb 5 (AsO 4 ) 3 Cl] content by controlling the amount of free sulfur ions in ore solution after addition of water soluble sulfide to a specific region. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H10305243-A (JP)
Title: Simplified spray gun
Inventor: TANAKA MAKOTO
IPC: B05B7/24
Filed: 1997-04-30
Abstract: PROBLEM TO BE SOLVED: To easily attain high accuray of repairing capable of being satisfied by all repairing peoples without necessitating a high degree of coating technique to eliminate a deviation of accuracy of the repairing due to an individual difference, in the case of repairing a local damage on a body coating film of an automobile and a local damage on a bumper surface. SOLUTION: In this simplified spray gun, a resin-made cap type holder 20 provided with an air nozzle 31 and a coating material nozzle 32 in which the tip is positioned in a crossing state near at the tip of the air nozzle 31, covers and is fixed to an upper end part of a cylinder 11, an opening of the tip part of a coating[ material container 1 is communicated with an inlet of the coating material nozzle 32 via a joint 33 provided on the cap type holder 20 to attach the container 1 attachably and detachably and a valve 13 of the cylinder 11 is opened by a press pressure of an operational head 30 assembled to the cap type holder 20, to eject compressed air in the cylinder 11 from the air nozzle 31 in a high speed and by following this to eject the coating material in the coating material container 1 from the coating material nozzle 32 and to perform a spray coating.
Patent JP-H06312091-A (JP)
Title: Futon drying device
Inventor: ISHIKAWA JUN
IPC: D06F58/00
Filed: 1993-04-30
Abstract: PURPOSE:To prevent a duct hose from easily slip off from an opening by installing a cuff for mounting and demounting the opening of a partitioning at the base edge of a duct hose and installing a locking means for the opening. CONSTITUTION:A room inside unit 1 in a refrigeration cycle is installed in a top shelf 25 in the upper part of a closet 24, and when a damper 31 closes the blow-out port 29 of the top shelf 25, the conditoned air passes through an opened port 32, and is introduced into duct hoses 32-35, and blows out through the attachments 36-38 at the top edge, and dries 'futon' mats 39-41. Further, when the opening degree of the damper 31 is at an intermediate position, the air is introduced into an air-conditioned chamber 23 and duct hoses 33-35, and the air-conditioned chamber 23 is air-conditioned, and the 'futon' mats 39-41 are dried. As for the joint structure between the duct hoses 33-35 and the opening 47 of a partitioning plate 46, the cuff 72 of a bellows hose 45 is connected to the opening 47 of the partitioning plate 46, and the top edge part of the cuff 72 is set close in the closet 24, and the cuff 72 has a locking means for the opening 47.
Patent JP-H08321476-A (JP)
Title: Method of implanting ions into semiconductor film
Inventor: OGAWA SHINJI
IPC: H01L21/285
Filed: 1995-05-26
Abstract: PURPOSE: To suppress the fluctuaitons in the sheet resistance, the conductivity of wiring, etc., low by making it hard to be influenced by the change in the thickness of a polycrystalline silicon film. CONSTITUTION: Implanting impurities so that the center (the center of a poly Si film) distribution of concentration of impurities in the position a distance (Rp) deep from the surface of a semiconductor film may be in the position a deviation (d) deeper than the center of the thickness (film thickness) of the semiconductor film, and then, diffusing them will fix the resistance value of the sheet, resisting the change of film thickness. That is, by implanting impurities deep, the impurities pass the semiconductor more, the larger the film thickness is, and the impurities stay more, the smaller the film thickness is. It is though that this matter will by offset by the quantity of impurities staying within the semiconductor film increasing more to the quantity of the impurities being trapped at the crystal grain boundary, the larger the film thickness is. Accordingly, the sheet resistance, the conductivity of wiring, etc., are regularized, resisting the change of film thickness.
Patent JP-S5919132-A (JP)
Title: Ram-type extruder
Inventor: YABUKI MINORU
IPC: B29C48/475
Filed: 1982-07-22
Abstract: PURPOSE:To provide the titled extruder capable of shortening a heat history to which a resin is subjected and reducing the size of the device, wherein a resin is extruded by a ram-type plunger, the resin is plasticized through self-heating in a gap formed on a resin-plasticizing part of a cone-type screw and is kneaded. CONSTITUTION:A resin supplied into a cylinder 13 through a resin-supplying port 16 is pushed by the ram 14, and is supplied under pressure into a cylinder 1 through a ball valve 12. The interior of a resin forcing-in passage is evacuated by a vacuum pump 19. The resin introduced into the cylinder 1 is moved to the side of an outlet 2B while being heated by a heater 4, and when it passes through a narrow gap (n) formed on the resin-plasticizing part 5C, self-heating is effected by a high-speed rotation of the cone-type screw 5, and the resin is plasticized and kneaded in a short time.
Patent JP-S62286867-A (JP)
Title: Slip down motion preventive device for automobile in ascent
Inventor: TACHIBANA TAKEO
IPC: B60T7/12
Filed: 1986-06-03
Abstract: PURPOSE:To prevent slip down motion of an automobile when it is started in whatever case the automobile is driven advancing on an ascent or reversing on the ascent, by placing a retainer in a one-way clutch position when a gear select lever is controlled to a shift of 1-speed position or reverse position. CONSTITUTION:If a gear select lever is controlled to a shift of 1speed position, an arm 9, which detects a 1-speed and 2-speed switching shifter rail 11 to be moved to the 1-speed position, turns in the clockwise direction, consequently a retainer 4, connected with the arm 9 by a rod 12, turns in the clockwise direction from a free running position. In this way, the retainer 4 is placed in a one-way clutch position in which a roll clutch moving pawl 4a of the retainer 4 is detached from a roll clutch 6. The roll clutch 6, which is pressed to the peripheral surface of a rotary inner cylinder part 3a in a narrow part of a clearance between a wall surface 5a and the rotary part 3a, performs wedge action, and an automobile is prevented from slipping down because turning of the rotary part 3a, turned by force of a wheel, is stopped.
Patent JP-S62284544-A (JP)
Title: Simultaneous multi-address system
Inventor: INOUE SATOSHI
Filed: 1986-06-02
Abstract: PURPOSE:To shorten the time up to the end of a simultaneous multi-address communication by transmitting the same stored information to plural destinations simultaneously according to the state of the end of reception preparations for simuetaneous multi- address communication destinations, and sending the information to destination which are not ready for reception again at the same time. CONSTITUTION:A DTE 1 generates a request for simultaneous multi-address communication and an RCV 3 at the time of receiving multi-address destination information and a multi-address destination end signal converts #0, #1-nu into connection information successively and sends out it to a CTL 4. The CTL 4 controls an SW 2 to connect the DTE 1 to DETs 0, 1-(n) and when a connection information end signal is received from the RCV 3, the reception preparation end state of every simultaneous multi- address destinations is monitored to and the respective DETs 0, 1-(n) detect reception preparation end signals from the simultaneous multi-address destinations. The CTL 4 in case of confirming the reception of signals RDY at more than a constant rate within a constant time sends out a request to send out the stored information to simultaneous multi-address destinations which have sent the RDYs to the DTE 1. The DTE 1 receives this TRG and sends out signals INF to the simultaneous multi- address destinations which are ready for reception.
Patent JP-H01299837-A (JP)
Title: Production of laminate
Inventor: TAKADA TOSHIHARU
IPC: C08L79/04
Filed: 1988-05-26
Abstract: PURPOSE:To obtain a laminate retaining a low permittivity, a low dielectric loss tangent and high heat resistance and having increased flame retardancy, by laminate-molding prepregs formed from a varnish prepared by mixing a specified poly(aromatic cyanate) with a flame retardant and a catalyst and base material in a specified manner. CONSTITUTION:A varnish is prepared by mixing a poly(aromatic cyanate) of formula I with a flame retardant of formula II, a flame retardant of formula III and a reaction catalyst for the poly(aromatic cyanate). Base materials are impregnated with this varnish to form long belt-like prepregs, which are laid upon each other and laminate-molded in such a manner that they are continuously fed and taken up under applied heat and pressure to obtain the purpose laminate. In the formulas, Ar is an aromatic, B is a 7-20C polycyclic aliphatic group, D is an active hydrogen-free substituent, q, r and s are each 0, 1, 2 or 3, q+r+s>=2, t is 0-4 and x is 0-5.
Patent JP-S5835195-A (JP)
Inventor: JIYOOJI BURATSUKUMOA RAAJI
IPC: C07F9/54
Filed: 1982-07-23
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S63292849-A (JP)
Title: Two-wire type signal transmission method
Inventor: SEKIGUCHI TOSHIO
IPC: H04L13/00
Filed: 1987-05-26
Abstract: PURPOSE:To respond to different kinds of equipments by a single hand-held terminal, by performing model discrimination by a model name read out from a transmitter, selecting a communication procedure with a content corresponding to a model incorporated in the hand-held terminal, and executing data communication hereafter corresponding to the communication procedure. CONSTITUTION:A digital code which requests the model name of a converter 14 is sent from the hand-held terminal 16 to the transmitter 14. The transmitter 14 converts a serial digital code to parallel data via an interface IFC, and fetches it in a microprocessor mu P. The microprocessor mu P decodes the digital code, and answers back its own model name to the hand-held terminal 16 via the interface IFC. The hand-held terminal 16 decodes the above answer back by a microprocessor mu P', and selects the communication procedure corresponding to the model name stored in a memory MEM' out of the communication procedures stored in the MEM', for example, a thermometer, a differential manometer, etc., and completes an initial program.
Patent JP-S5830123-A (JP)
Title: Manufacture of semiconductor device
Inventor: NAKAHARA MORIYA
IPC: H01L27/12
Filed: 1981-08-18
Abstract: PURPOSE:To obtain a high quality epitaxial layer and thus a high speed device by selectively changing thicknesswise a single crystal semiconductor layer on a single crystal insulating substrate to an insulating layer and using the remaining single crystal layer as a seed. CONSTITUTION:A p type single crsytal Si layer 2 is formed on a sapphire 1, an ion implantation layer 3 is provided in such a manner that the maximum concn. of O2 is obtained at 3,700Angstrom  above the layer 2 and an SiO2 layer 4 is formed to each substrate 1 by high temperature treatment in the presence of N2. Using the remaining epitaxial layer 2' as a seed a singlecrystal epitaxial layer 5 is formed. The layer 5 is etched to form an island 5' which is covered by an SiO2 layer 6. By selecting conditions, B ions are implanted into the p layer 5' to control a threshold voltage; after that a poly Si layer is accumulated on the entire surface, a gate electrode 7 is made by patterning, a gate oxide film 8 is formed by etching and n<+> source and drain 9, 10 are formed by As ion implantation and heat treatment. Finally the surface is covered by an SiO2 layer 11 and electrodes 13, 14 are bonded. Since the epitaxial layer 5 has little defects the mobility of electron and positive hole is increased, allowing a high speed MOSIC to be obtained.
Patent JP-H01299994-A (JP)
Title: Drilling rig
Inventor: HASHIMOTO TAKASHI
IPC: E21B43/00
Filed: 1988-05-26
Abstract: PURPOSE:To enable a selection between a wide range of working means and a hoisting power equivalent to a balance power by using the same power drive source for a feed device and a hoist device, and supporting a transmission gear block with a fixed mast or a shift block. CONSTITUTION:A shift block 60 is so fitted to a fixed mast 52 capable of standing as to be freely liftable, and a transmission gear block 68 is supported on the fixed mast 52 or the shift block 60. The shift block 60 is moved up and down with an actuator 54. The fixed mast 52 is so provided with a swivel head 76 as to be freely liftable and a wire 78 with the end thereof connected to the swivel head 76 causes the upward and downward motion of the swivel head 76 on the operation of the actuator 54. Furthermore, a hoist member 90A and the transmission gear block 68 are fixed to either the fixed mast 52 or the shift block 60, and the hoist member 90A is moved up and down with the wire 92 on the operation of the actuator 54.
Patent JP-S6021604-A (JP)
Title: Sound amplifier circuit
Inventor: SHIMIZU HIDEO
IPC: H03F1/32
Filed: 1983-07-18
Abstract: PURPOSE:To obtain a sound output signal with less distortion at a low and a high frequency region by increasing automatically a sound output circuit operating voltage only at said frequency region of a sound frequency. CONSTITUTION:An output signal 3 of a pre-stage amplifier circuit 2 is inputted to an HPF30 and an LPF31. A signal 32 increasing an output voltage only at the high and low frequency is obtained by OR coupling of output voltages 33, 34 of filters 30, 31. A power supply voltage control circuit 29 is activated by using said signal 32 so as to vary a sound power supply voltage 11. Thus, when the frequency of an input signal 1 to the sound amplifier circuit is at a low and a high frequency, the sound power supply voltage 11 is increased automatically by the power supply voltage control circuit 29 and an output waveform with less distortion is obtained at an output terminal 8 of a sound output circuit 4.