baber/WOPTO huggingface dataset:
Patent JP-H045362-A (JP)
Title: Tatami mat manufacturing method
Inventor: KITAGAWA MAMORU
IPC: E04F15/02
Filed: 1990-04-19
Abstract: PURPOSE:To form a TATAMI mat base excellent in air permeability and elasticity by forming a cattail base while arranging mostly cattail grass in lines and rows and piling them in a body, and integrating an insulation board on the cattail base. CONSTITUTION:A cattail grass of about 2m average length is divided into a root section of about 30cm length, a trunk of about 90cm, and leaf section of about 80cm, and the root section is chopped to about 5cm to form trash. In the next step, back face sheets 2 such as back water oat and paper are laid on a TATAMI mat making machine, and on the back face sheet, cattail grasses 3 in full length, before cutting, as lower arrangement and the trunk part 4 of cattail grasses for a body water oat are piled. On the body part 4, the trash 5 and leaf section 6 for upper arrangement are piled in order for forming a TATAMI mat of about 40mm in thickness, on which an insulation board 9 is made in a body. By this constitution the smoothness of the cattail base surface can further be improved.
Patent JP-2000290920-A (JP)
Title: Road roller
Inventor: TAMURA SEIJI
IPC: E01C19/26
Filed: 1999-04-12
Abstract: PROBLEM TO BE SOLVED: To cover spaces formed between a frame and a floor plate composing a front car body and front rolling rollers. SOLUTION: A road roller is formed in such a constitution that right and left overhung parts 42, 42 for covering upper sides of right and left front rolling rollers 6 are integratedly formed on an upper surface cover provided on an upper end side of a frame 33, so that a space (a) formed between a side surface plate 34 of the frame 33 and an internal side of the front rolling rollers 6 is covered with one of the overhung parts 42, and a space b formed between a front end part of an overhung floor part 39B of a floor plate 39 and a surface of the front rolling rollers 69 is covered with the other overhung part 42 when an upper surface cover 41 is set to a closing position. Thereby, when an operator performs start-up inspection work on the front rolling rollers 6, it is possible to surely prevent being pinched a tiptoe, etc., in the space (a) or the space (b) even if a foot is slid on the front rolling rollers 6, so that the start-up inspection work can be safely performed.
Patent JP-S63270994-A (JP)
Inventor: HIKASA KATSUHIRO
IPC: F16L55/07
Filed: 1987-04-27
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-H10280297-A (JP)
Title: Coating agent for paper and production of coated paper by using the agent
Inventor: FURUICHI HIDEKI
IPC: C08L29/04
Filed: 1997-04-08
Abstract: PROBLEM TO BE SOLVED: To provide a coating agent for paper capable of imparting a coated paper with excellent barrierness without staining a drier roll and calender roll during the production of a coated paper and provide a process for producing a coated paper by using the coating agent. SOLUTION: This paper-coating agent is produced by compounding (A) 100 pts.wt. of a polyvinyl alcohol having carboxyl group with (B) 0.5-100 pts.wt. of a polyvinyl alcohol having a viscosity of >=25 mPa.s as 4% aqueous solution at 20 deg.C and a saponification degree of >=95 mol%. The coated paper can be produced by coating a base paper with the coating agent at a coating rate of >=0.05 g/m<2> and drying the coated layer.
Patent JP-S63290677-A (JP)
Title: Production of aluminum alloy casting
Inventor: SUGIMOTO YUKIHIRO
IPC: B22D21/04
Filed: 1987-04-27
Abstract: PURPOSE:To prevent pitting on an aluminum alloy base material by arranging zinc coated layer on surface of a mold forming exposed part to corrosion atmosphere, casting by pouring the molten aluminum alloy into the mold and forming the aluminum-zinc alloy layer. CONSTITUTION:A core for forming cooling water passage as the mold forming the exposing part to the corrosion atmosphere in a cylinder head, forms the coated layer by making solution of silica sand with alcohol after forming by using zircon sand and forming the coated layer by dipping in this solution, to form a core body 1A. Next, Zn powder is made to solution with the alcohol and the core body 1A is dipped and the coated layer 1B of scaly Zn is formed on the circumferential surface. This core 1 is inserted in a cavity in the mold 2 for the cylinder head and the low pressure casting is executed by pouring molten Al alloy from the sprue 2A. Next, after solution heat treatment is executed, the quenching and tempering treatments are executed. By this method, the Al-Zn alloy layer 5 is formed on the surface of the base material 4 for forming cooling water passage 3 and the pitting of the Al alloy base material is restrained.
Patent JP-H02293392-A (JP)
Title: Molecular beam epitaxy apparatus equipped with crucible in emission cell
Inventor: YOHANPEETAA RAITOMAIYAA
IPC: C30B23/06
Filed: 1990-04-18
Abstract: PURPOSE: To reduce the loss of materials by determining the directions of the angular aperture of a crucible, the sectional form of the crucible vertical to a center axis and the center axis in such a way that the molecular beam emitted from the crucible impinges almost precisely on the substrate.  
     CONSTITUTION: A crucible 5 is tilted relative to a cell 6 to direct the center axis 3 of the crucible 5 to the central point 7 of a circular substrate 4 to be coated, and the center axis 2 of the cell 6 is extended off the substrate 4. The angular aperture (a+a') of the crucible 5 with its opening elliptic is small-sized so that the molecular beam impinges only on the substrate 4. The merit of this device is such that the existing cell arrangement provided with a center axis directed eccentric to the central point of the substrate can be set even in an existing epitaxy device without need to change the inherent cell design. 
     COPYRIGHT: (C)1990,JPO
Patent JP-S62261648-A (JP)
Title: Fiber-reinforced cylinder block
Inventor: EBISAWA SHIZUO
IPC: F02F7/00
Filed: 1986-05-07
Abstract: PURPOSE:To uniformalize the variation of the inner diameter of a cylinder bore by setting the fiber volume rate of a part of the fiber shaped body in composite form with a high temperature part at high temperature during the engine operation, of a fiber-reinforced composite cylindrical body driving a cylinder bore, than that of other parts. CONSTITUTION:The cylinder bore 7 of a cylinder barrel 1 is divided by a cylindrical fiber-shaped body F which is formed by binding carbon fiber and alumina fiber by the inorganic binder such as silica sol, etc., and a fiber-reinforced composite body Co made of aluminum alloy as light alloy matrix. the cylindrical fiber molded body F consists of the small outside diameter part Fa, large outside diameter part Fb, and the connection part Fc connecting the both, and the fiber volume rate of the small outside diameter part Fe corresponding to the high temperature part is set to the higher value than that of other parts. Further, the fiber volume rate of the connection part Fc is gradually reduced towards the large outside diameter part Fb from the small outside diameter part Fa.
Patent JP-S59228175-A (JP)
Title: High frequency component detector
Inventor: ENDOU TAKESHI
IPC: G01R31/12
Filed: 1983-06-10
Abstract: PURPOSE:To detect the high frequency component generating a magnetic flux alone due to a high frequency component by connecting coils employing a magnetic material different in the magnetic viscosity with a depolarization to cancel a magnetic flux generated by a commercial frequency component accompanying a large current. CONSTITUTION:A first core 1 made of a ferromagnetic material and a second core 2 made of a ferromagnetic material different in the magnetic viscosity are used to form a magnetic closed circuit and core coils 3 and 4 are provided and connected in series together with a depolarization. Therefore, theoretically, there is no commercial frequency voltage generated at a terminal 5 of the series coils until a current saturates the respective cores by a leakage magnetic flux. The magnetic permeating properties of the cores 1 and 2 are as shown by curves 6 and 7 and the core 1 lowers the magnetic permeability in the frequency exceeding 10kHz. Therefore, there is no need for considering the magnetic flux of a commercial frequency in the frequency therebeyond though the coil 3 shows the nature as reactor thereby enable the miniaturization of a magnetic circuit itself.
Patent JP-H07146853-A (JP)
Title: Inverse discreteness cosine transformation processor
Inventor: KURISUTOFUAA ERU FUUGENBUUMU
IPC: H04N1/41
Filed: 1994-04-19
Abstract: PURPOSE: To provide a method and a device for inversely transforming the matrix of a discrete cosine transformation DCT coefficient. CONSTITUTION: At least 2 bits are processed in one time for the DCT coefficient and the vector inner product provided with a DCT nuclear matrix is obtained. The matrix of the vector inner product is transposed 112 and the transposed matrix of an inner product element is obtained. At least 2 bits are processed in one time for the inner product element of the transposed matrix and the vector inner product provided with the DCT nuclear matrix is obtained. The synthesis inner product is interleaved in an accurate order and buffered in a successive output register 118. Further, efficiency is achieved by executing the post add stage 104 of an IDCT flow graph preceding the output register.
Patent JP-H09293856-A (JP)
Title: Insulation gate bipolar transistor provided with built-in current detecting part
Inventor: HOSHI YASUYUKI
IPC: H01L29/78
Filed: 1996-04-25
Abstract: PROBLEM TO BE SOLVED: To improve the current detection precision of an insulation gate bipolar transistor(IGBT) provided with built-in current detecting part, which detects a current based on voltage drop, by commonly providing a main IGBT part and a sense IGBT part formed with a part of it, and making the current diverted with the sense IGBT part to flow to a sense resistor. SOLUTION: A current-voltage characteristics of a sense IGBT part 14 at gate-on is made approximately linear within the range below the on voltage of a detected current of a main IGBT part 13. Specifically, a P sense base area may be a single stripe, the width of a sense gate electrode 27 between sense emitter electrodes 28 may be narrower than a gate electrode 7 between emitter electrodes 8 of the main IGBT part 14, a gate threshold value of the sense IGBT part 14 may be higher than that of the main IGBT part 13, so that conductivity modulation of the sense IGBT part 14 is hard to occur. A discontinuous point becomes hard to occur with a sense voltage, and the temperature dependency is improved.
Patent JP-H05302622-A (JP)
Title: Control device for magnetic bearing
Inventor: KAMIYAMA HIROTOMO
IPC: F16C32/04
Filed: 1992-04-23
Abstract: PURPOSE:To linearize suction force of solenoids without being influenced by a rotational speed and temperature of a rotor, and a geometric relation between the solenoids and position sensors. CONSTITUTION:Solenoids 11, 12 of a magnetic bearing is controlled based on air gap signals detected from position sensors 15, 16 which detect value of air gap in respect to a rotor 10, and a specified reference air gap signal. A temperature of the rotor 10 is detected by a temperature sensor 18, while a rotational speed of the rotor 10 is detected by a rotation sensor 17. The reference air gap signal is corrected by means of a reference air gap signal setting circuit 29 based on the detected temperature and rotational speed signals. The detected air gap signal is corrected so as to display a true air gap between the solenoids 11, 12 and the rotor 10 based on a geometric relation between the solenoids 11, 12 and the position sensors 15, 16.
Patent JP-H07298147-A (JP)
Title: Image pickup camera
Inventor: AZUMA KATSUHISA
IPC: H04N5/335
Filed: 1994-04-21
Abstract: PURPOSE:To enhance the resolution without a complicated structure of the camera and to extend the visual field. CONSTITUTION:Plural image pickup elements 2a, 2b are placed on one and same board and for example, four image pickup elements are arranged on the same board in a tangential line direction so that a short side is butted to a long side of other adjacent image pickup element thereby allowing the outer shape of the entire image pickup elements is almost a square and image pickup lenses 3a, 3b are arranged toward an object 5 for each of the image pickup elements 2a, 2b. Then the object 5 to be picked up is received with division and the image is formed on the different image pickup elements 2a, 2b to pick up the image of the entire object. Thus, high resolution is attained with simple structure not using a spectral member such as a mirror and a prism and offering ease of adjustment so as to increase apparent picture element number.
Patent JP-H01280025-A (JP)
Title: Production of carbon fiber having high strength and high modulus of elasticity
Inventor: NAITO TSUTOMU
IPC: D01D4/08
Filed: 1988-04-27
Abstract: PURPOSE:To stably obtain the title fiber having small crystal, sectional orientation of random structure and stable physical properties by spinning melt pitch under high spinning pressure while providing shear stress. CONSTITUTION:First, melt pitch is extruded from a spinning nozzle under 50-200kg/cm<2> back pressure just above the spinning nozzle while applying shear stress to the melt pitch. Then the prepared fiber is infusibilized, carbonized and optionally graphitized to give the aimed fiber. To spin the melt pitch while providing shear stress, for example, a spinning device 10 equipped with a heating cylinder 12 into which the pitch 11 is fed, a plunger 13 for pressurizing the pitch and a spinneret 14 having the bored spinning nozzle 15 is used.
Patent JP-H02283092-A (JP)
Title: Forming method for stereoscopic wiring substrate with through hole
Inventor: TOKURA KUNIHIKO
IPC: H05K3/06
Filed: 1989-04-25
Abstract: PURPOSE:To finely enhance the density of a wiring pattern by applying an etching resist due to optically curable electrodepositing resist as a patterning mask for a plated conductive layer. CONSTITUTION:A conductive layer 32 is entirely plated over a first face 21 and a second face 22 including the inner peripheral surfaces of a through hole 11. The layer 32 is covered entirely with optically curable electrodepositing resist 33. The resist 33 is exposed in exposure amount to be suitably cured in the hole 11. The unexposed part of the resist 33 is removed and patterned. With the patterned resist 33 as an etching mask the layer 32 is selectively etched to form first and second faces 21, 22 with a wiring pattern 12. Thus, a stereoscopic wiring substrate 20 with the through hole is obtained.
Patent JP-2000298883-A (JP)
Title: Optical disk
Inventor: SHIYABANA MASAJI
IPC: G11B7/24085
Filed: 1999-04-13
Abstract: PROBLEM TO BE SOLVED: To easily discern a first layer and a second layer simply from a difference of polarities of address pits of a track error signal by making positions of two kinds of address pits to an information track different between the first layer and second layer. SOLUTION: A first address pit 303 and a second address pit 304 are arranged to positions shifted by half a pitch in a radial direction to a land track 302 and a groove track 301, respectively. The address pits 303 and address pits 304 are arranged so that a first positional relationship of the address pits 303 and address pits 304 in the radial direction is opposite to a second positional relationship of address pits 303 and address pits 304. The positional relationship of the first address pit 303 and the second address pit 304 is made different, so that polarities of the address pits appearing to a track error signal become different. A difference of a first layer and a second layer can be discerned accordingly.
Patent JP-H04334972-A (JP)
Title: Switching power supply circuit
Inventor: SATO YUKINORI
IPC: H02M3/28
Filed: 1991-05-10
Abstract: PURPOSE:To provide a low-cost switching power supply in which heat generation in switching transistors is reduced. CONSTITUTION:A switching power supply includes a DC source 3, a switching output transformer 4 connected one end of the DC source, and a series circuit connected across the primary side of the transformer. The series circuit includes a parallel circuit of a capacitor 7 and a first resistor 6, and a diode 5 connected to the parallel circuit. The power supply further includes a switching transistor 2 and a control circuit 1. The switching transistor has an emitter connected to the other end of the DC source 3, a collector connected to the node (a) where the transformer is connected with the series circuit, and a base connected to the control circuit. Between the node (a) and the switching transistor 2 is connected a diode 8 whose cathode is connected to the collector of the transistor. A second resistor 9 is connected between the emitter and collector of the switching transistor.
Patent JP-S5730453-A (JP)
Title: Variable-length code transmission system
Inventor: FUJITA KENGO
IPC: H04L7/00
Filed: 1980-07-31
Abstract: PURPOSE:To convert a variable-length code into a fixed-length one by self-synchronization by detecting boundaries between variable-length codes in reception, by making each variable-length code has the same bit as the 1st and last bits and no bit  of the same kind as the 1st and last bits as other bits. CONSTITUTION:A variable-length code consisting of eight bits at a maximum is inputted to a shift register successively as input data and when contents 00 of bits b0 and b1 are set in sections 3-7 and 3-8 of the register 3, a detecting circuit 4 for boundaries between variable-length codes sends it output to a register 5. Then, the data 0 in the section 3-7 of the register 3 is transferred to the register 5, and an  ROM for variable-length/fixed-length code conversion outputs a fixed-length code  0000 which corresponds to a [0]. The register 5 sends an ineffective signal to the  register 3 to make the data in the section 3-7 ineffective. As the next data, bits  b2-b8 are inputted to the register 3 and when a bit b9 is inputted, the circuit 4  generates an output and a fixed-length code is outputted similarly.
Patent JP-H09292613-A (JP)
Title: Liquid crystal display device
Inventor: FUKUOKA HIROMI
IPC: G02F1/1335
Filed: 1996-04-25
Abstract: PROBLEM TO BE SOLVED: To reduce the influence of the heat radiation of a long-length light source. SOLUTION: A dotted printing pattern and a light reflector 7 are provided on either principal surface of a light transmission plate 4 the end face of which a fluorescent lamp 5 is disposed on; a liquid crystal panel 3 is disposed on the other principal surface side thereof through a light diffusing plate 6; and reflectors 11a and 11b are arranged along in the longitudinal direction of the lamp 5; then the respective reflectors 11a and 11b are superposed in the longitudinal direction of the lamp 5 and further a gap is formed in the superposed part. While irradiating light from the lamp 5 is reflected by the reflectors 11a and 11b, it is introduced in the plate 4, emitted from the other principal surface, and projected to the effective display area of the panel 3.
Patent JP-2000298158-A (JP)
Title: Inspection apparatus and method
Inventor: KOBAYASHI KATSUMI
IPC: G01R31/26
Filed: 1999-04-13
Abstract: PROBLEM TO BE SOLVED: To provide an inspection apparatus and method capable of reducing the influence of noises during observation of signals of an IC package and also during normal inspection. SOLUTION: This inspection apparatus includes a socket body 3 to which an IC package 7 with an external lead 8 is attached, a pin 12 provided within the socket body 3 and electrically connected to the external lead 8 when the IC package 7 is attached to the socket body 3, and a connecting port provided in the socket body 3 for connecting and disconnecting a signal observation board 17 which is electrically connected to the pin 12. Electrical signals from the external lead 8 are taken out via the pin 12 and the signal observation board 17 whereby signals of the IC package 7 are observed.
Patent JP-S5229778-A (JP)
Title: Noise figure checking apparatus
Inventor: AOYAMA HIDEJI
IPC: G01R29/26
Filed: 1975-09-01
Abstract: PURPOSE: A noise figure checking apparatus which permits identification, at a glance, of whether noise figure characteristics are good or not, through simultaneous display of all reception channel noise figure characteristics of a tuner on an oscilloscope screen. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H04335538-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: KUSUNOKI SHIGERU
IPC: H01L29/78
Filed: 1991-05-10
Abstract: PURPOSE:To realize a field effect transistor using a resonance tunnel effect having a high tunnel efficiency by forming a thin amorphous silicon layer to thereby form a sharp potential barrier. CONSTITUTION:Silicon monocrystalline substrates 1, 3 are used in a field effect transistor according to this invention. At least two thin amorphous silicon layers 2 are independently formed in positions for disturbing movement of majority carrier on a channel region 7 on a surface of a silicon substrate. Both sides of the respective layers 2 are interposed to be held between the layers 1 and 3. A gate electrode 9 is formed on a gate insulating layer 6 on the surface of the region 7. A thin potential barrier and a potential well are formed of at least the two layers 2 on the region 7.
Patent JP-H10303195-A (JP)
Title: Manufacture of semiconductor device
Inventor: SAIHARA HIDENORI
IPC: H01L21/3205
Filed: 1997-04-23
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a semiconductor device enabling miniaturization and speedup. SOLUTION: A method for manufacturing a semiconductor device includes a first step wherein an epitaxial base region 3 is formed at an opening of an element isolation oxide film 2 on a semiconductor substrate 1 on a non-selective condition, a second step wherein a silicon oxide film 5 is grown on the epitaxial base 3 and a base polysilicon 4, and a third step wherein the silicon oxide film 5 is etched by etch back process or CMP until the polysilicon 4 leading the base is exposed. The surface of the silicon oxide film 5 is planarized by leaving the silicon oxide film 5 only on the epitaxial base 3. Furthermore, a silicide 6 is formed to decrease the resistance of an electrode.
Patent JP-S5631217-A (JP)
Title: Push-buttom tunen
Inventor: OOHASHI TAMAKI
IPC: H03J5/08
Filed: 1979-08-22
Abstract: PURPOSE:To make the depression operation of the channel selection material light, by linking both end parts of two laterally moving plates to the frame by link pieces which are turned in the same direction when these plates are moved relatively. CONSTITUTION:When channel selection material A1 is operated against the spring for restitution by depression, one acting part 3a strikes inclined edge 9a opposite to part 3a. One laterally moving plate 8a is moved to the left while being a supported by a pair of link pieces 15a and 15a. Next, link piece 12 is turned clockwise, and the other laterally moving plate 8b is moved to the right while supported by a pair of link pieces 15b and 15b. Then, inclined edge 9b of window hole 10b strikes the other acting part 3b opposite to edge 9b. Further, variable tuning element 18 is varied according to the movement displacement extent of laterally moving plates 8a and 8b corresponding to the turning angle of memory material 4, thus achieving channel selection.